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Michael Barnard Podcasts

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Redefining Energy - Tech, a channel of the award-winning Redefining Energy podcast, features deep and broad conversations between global decarbonization leaders and technologists and host Michael Barnard. His informed perspectives on energy, industry and transportation enable him to have intense conversations with brilliant and knowledgeable people. You’ll be informed, stimulated and amused.
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David Barnard, Jacob Eiting

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Interviews with the experts behind the biggest apps in the App Store. Hosts David Barnard and Jacob Eiting dive deep to unlock insights, strategies, and stories that you can use to carve out your slice of the 'trillion-dollar App Store opportunity'.
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On brand with ....

Deborah Ogden

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On brand with ... I love listening to other people’s experiences in business. When I present, I like to use stories to illustrate the key principles of personal brand and impact in action, bringing the theory to life for my audience. On brand with brings these ideas together, adding colour, and sharing stories of personal branding in action. My vision has always been to bring the power of personal branding to as wide an audience as possible. For individuals to use their personal brand to unl ...
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On the podcast, I talk with Greg about knowing when to pivot, why most consumer apps shouldn't raise VC, and why making free trials optional outperformed making them the default. Top Takeaways: 📉 Know When to Pivot Wrangle struggled because it wasn’t solving a real problem. Burner succeeded because it met a clear need. Don’t be afraid to pivot when…
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On the podcast we talk with Ravi about subscriptions as a force multiplier for consumables, why narratives matter more than metrics in goal-setting, and why you might want to try a longer onboarding, or a shorter one. 📊 Stack the demand curve Tinder didn’t just offer one price—it built a staircase of value. Low-tier subs, premium upgrades, and micr…
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On the podcast, we talk with Eric about the opportunities and challenges of AI for consumer apps, what you can learn from Strava acquiring Runna, and the flawed thinking around ‘subscription fatigue’. Top Takeaways: 💸 Value Overcomes Fatigue Consumers would rather not pay for anything, but when a product delivers real value, they are happy to pay, …
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On the podcast, I talk with Michael about the blessing and curse of having a brand, why post-purchase is the perfect upsell moment, and why partnerships are hard to pull off but can be well worth the effort. Top Takeaways: 🌱Growth is Built on Value Sustainable growth comes from consistently adding value, not just short-term tactics. Success lies in…
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On the podcast I talk with Josh about red flags that tank app valuations, why subscription-only apps are leaving money on the table, and how bootstrapped founders are cashing out for millions in months, not years. Top Takeaways: 🎯 Build to sell, but build smart Flipping an app in under a year is still possible, but the skill that matters most now i…
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In this episode, Gerard Reid, Laurent Segalen and Michael Barnard dug into the technologies and narratives that keep surfacing in discussions about the energy transition, but which continue to underdeliver when you scrutinize the economics and engineering realities. Carbon capture and direct air capture remain heavily subsidy-driven, often costing …
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On the podcast we talk with Mathias about running Subway Surfers' marketing machine on salaries, not ad spend, leaving money on the table to protect player experience, and why more apps should try rewarded ads, season passes, and other tactics from gaming. Top Takeaways: 🎨 Viral flywheels can out-perform massive paid campaigns Relying on salaries i…
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In the second episode of Redefining Energy Tech, Lyle Trytten (aka the Nickel Nerd) joins host Michael Barnard to explore the controversial world of seabed mining. The discussion focuses on The Metals Company (TMC), Impossible Metals, and their efforts in the Clarion Clipperton Zone. A significant milestone was recently announced: for the first tim…
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On the podcast we talk with Ora about LinkedIn’s value-driven growth philosophy, how they personalize experiences and plan offerings based on user intent, and the complexity of running over a thousand experiments a year. Top Takeaways: 🌱 Growth follows value The surest path to long-term growth is adding features and benefits that genuinely help peo…
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In this episode of Redefining Energy Tech Michael Barnard sat down with Lyle Trytten, who many in the industry know as the nickel nerd. He has spent decades working in mining and mineral processing and has become a trusted voice for organizations like Natural Resources Canada and the International Energy Agency. Our conversation turned to the techn…
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On the podcast I talk with Eric about how measurement dysfunction paralyzes growth, why diversifying channels for the sake of diversification actually hurts performance, and the futility of trying to interpret why ads win. Top Takeaways: 📊 Broken measurement kills growth The biggest pitfall isn’t creative or channel choice—it’s disorganized measure…
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On the podcast I talk with Thomas about using signal engineering to optimize ad spend, how AI is changing creative testing, and why most people should avoid app2web… for now. Top Takeaways: 🧠 The biggest AI opportunity in ads is smarter analysis, not faster production AI is now good enough to produce ad-quality video and variants at scale — but tha…
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In this second part of the podcast, Michael Barnard pursues his conversation Paul Martin and Emiel van Druten with explores emerging insights into the Netherlands' energy transition, addressing core assumptions around efficiency, hydrogen usage, and electrification. Building efficiency upgrades yield disappointing returns, with gas consumption ofte…
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On the podcast I talk with Lucy and Nicole about how customer-driven iteration led Zumba from VHS tapes in 2001 to launching an app in 2024, their app2web experiments that boosted LTV by 17%, and how they are able to charge for content when countless Zumba classes are available for free on YouTube. Top Takeaways: 🗣️ Listening has driven 24 years of…
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Michael Barnard hosts Paul Martin and Emiel van Druten in an insightful podcast episode exploring the Netherlands’ evolving energy transition scenarios, specifically focusing on strategic planning for 2030 and 2050. Emil van Druten, leading the scenario development at Tennet, collaborates closely with Dutch network operators, leveraging his enginee…
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On the podcast I talk with John about the fascinating 40-year history of Apple’s developer relations, how almost going bankrupt in the 1990s shaped today’s control-focused approach, and why we might need an ‘App Store 3.0’ reset. Top Takeaways: 🕹️ The 1980s: Apple’s developer DNA was born Apple’s earliest wins came from nurturing third-party develo…
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On the podcast we talk with Eric about his journey from a failed first app to success with his second, the advantage of building for problems people are already talking about, and why he turned down a lucrative acquisition offer to keep building. Top Takeaways: 🔍 Demand-first discipline wins Testing for willingness to pay before writing a line of c…
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In this episode (2/2), Michael Barnard concludes his conversation with Tristan Smith, a leading voice in maritime decarbonization and professor at the UCL Energy Institute, to unpack the tangled web of choices, regulations, and constraints facing the shipping industry as it attempts to cut emissions. From dual-fuel ships and synthetic fuels to comp…
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In Episode 53 of Redefining Energy TECH, Host Michael Barnard speaks with Tristan Smith, a prominent expert in maritime decarbonization and professor at the University College London Energy Institute. Tristan shares his insights, beginning with an overview of maritime shipping, which accounts for approximately 1 gigaton of CO₂ equivalent annually, …
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On the podcast, I talk with Charlie about why Liquid Glass represents a big opportunity for new and existing apps, Apple’s new on-device AI models and their practical limitations, and why the improved App Store Analytics complement rather than replace third-party tools like Appfigures and RevenueCat. Top Takeaways: 🫧 A style refresh is a growth hac…
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On the podcast we talk with Charlie about why React Native has become the default for VC-funded apps, how AI is accelerating development cycles, and why speed of iteration matters more than programming language. Top Takeaways: ⚡ Instant iteration cycles unlock agility React Native and Expo supercharge development by collapsing long build times into…
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In this episode of Redefining Energy Tech, host Michael Barnard concludes his conversation (See Ep51 for part 1/2) with Dr. Joseph Romm about the uncomfortable truths behind hydrogen's persistent hype. Romm—physicist, climate policy expert, and author of The Hype About Hydrogen—lays out a detailed indictment of hydrogen’s role in the energy transit…
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On the podcast I talk with Tim about the importance of trust in web2app funnels, replacing free trials with money-back guarantees, and how they’ve found success with contractors after struggling with in-house marketing hires. Top Takeaways: 🔁 Replace trials with trust to attract high-intent users A 30-day money-back guarantee can outperform traditi…
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In this episode of Redefining Energy Tech, host Michael Barnard sat down with Dr. Joseph Romm—physicist, energy policy veteran, and author of The Hype About Hydrogen—to pull back the curtain on hydrogen’s persistent mystique. Romm isn’t new to the debate. Back in the early 2000s, he was among the first to publicly challenge the logic of hydrogen as…
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On the podcast we talk with Chris about how to do freemium the right way, drafting a customer “Bill of Rights” to guide product decisions, and why blindly following A/B test results can lead to short-term gains but undermine your business long-term. Top Takeaways: 🧮 Data has limits Short-term data can lie. When every experiment looks like a win in …
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On the podcast, I talk with Daphne about why skipping user interviews is costing you growth, how to bring your product’s ‘aha moment’ forward into your marketing, and why your assumptions about why people use your app might be wrong. Top Takeaways: 🎯 Your app is a means to an end Users don’t care about how many features you have — they care about a…
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Simon Todd is back with Michael Barnard for part 2/2, and this time he’s drilling deeper—both literally and figuratively. In this second round, the Managing Director of Causeway Energies walks us through the hard tech and hard truths of geothermal energy, especially as it applies to the UK and Ireland. What emerges is a grounded, brutally realistic…
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On the podcast, I talk with Dan about estimating the ROI of product changes before building them, calculating your subscription app's growth ceiling, and why you shouldn’t make assumptions about what is and isn’t working in other apps. Top Takeaways: 💸 ROI-first thinking helps teams prioritize what actually moves the needle Every project has a cost…
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In this eye-opening episode (part 1/2), Host Michael Barnard invites Simon Todd, Managing Director of Causeway Energies and a man whose geological expertise spans from the chalk beds of Northern Ireland to the drilling decks of BP. Simon joins the podcast to drag geothermal energy out of its misunderstood niche and into the spotlight it deserves. S…
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On the podcast, I talk with Ajay about the fresh opportunities AI is creating for app developers, how they built a cost-effective TikTok growth engine, and why being forced to monetize helped improve their product decisions. Top Takeaways: 🤖 New tech, new apps – AI isn’t just making apps smarter. It’s enabling new categories entirely. Apps built ar…
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In this second part of the conversation, Mark O'Malley returns to discuss with co-host Michael Barnard grid reliability and the evolving challenges of integrating renewable energy. The conversation examines successful examples from Germany, Denmark, and Ireland, highlighting Ireland's unique position as a synchronous island. Texas also emerges as a…
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On the podcast we discuss how AI is changing both what apps do and how they’re built, the relationship between price and retention, and why React Native apps monetize better than native. Check out RevenueCat’s State of Subscription Apps 2025 report here: https://revenuecat.com/report Top Takeaways: 📊 AI apps: Higher revenue per user, but differenti…
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This episode is shorter than usual and will be featured in RevenueCat’s State of Subscription Apps report. On the podcast: top strategies for paywall optimization, how storytelling during onboarding impacts conversions, and why framing the user journey leading to the paywall is more critical than the paywall itself. Top Takeaways: 🔐 Your paywall is…
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This episode is shorter than usual and will be featured in RevenueCat’s State of Subscription Apps report. On the podcast: The state of major acquisition channels in 2025, how improved measurement is boosting confidence in ad spend, and why Reddit might be your next top-performing user acquisition channel. Top Takeaways: 📡 Signal recovery is improv…
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The transformation of global power systems is accelerating as wind and solar become dominant energy sources. In the latest episode of Redefining Energy Tech, Mark O'Malley, Leverhulme Professor of Power Systems at Imperial College London, offers a deep dive into the challenges and opportunities of this transition in an in-depth conversation with ho…
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This episode is shorter than usual and will be featured in RevenueCat’s State of Subscription Apps report. On the podcast: maximizing success with web subscriptions, how payment flexibility creates better user experiences, and why making cancellations difficult can do more harm than good. Top Takeaways: 💳Web subscriptions aren’t just a cost-saving …
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This episode is shorter than usual and will be featured in RevenueCat’s State of Subscription Apps report. On the podcast: diversifying revenue beyond subscriptions, what Google Play’s data reveals about buyer behavior, and why lower price points can actually increase total revenue. 📈Expand beyond subscriptions to capture new buyers Many users in e…
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This episode is shorter than usual and will be featured in RevenueCat’s State of Subscription Apps report. On the podcast: why some apps see 30 times higher revenue on iOS versus Android, the challenges of running a business on multiple platforms, and why you should consider offering a free Android device to employees. 📱 Android expands global reac…
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This episode is shorter than usual and will be featured in RevenueCat’s State of Subscription Apps report. On the podcast: why optimizing for user success drives more revenue than conversion hacks, how to maximize the impact of annual plans, and why relying too heavily on discounts is a trap. Top Takeaways 🏋️‍♂️Segment early to acquire the right us…
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This episode is shorter than usual and will be featured in RevenueCat’s State of Subscription Apps report. On the podcast: the power of cancellation surveys, how social proof can re-engage churned users, and why making it easier to cancel might actually boost retention. Top Takeaways: 📦Deliver personalized value through lifecycle marketing Reconnec…
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This episode is shorter than usual and will be featured in RevenueCat’s State of Subscription Apps report. On the podcast: how onX Maps tailors freemium and trial strategies to different user needs, the role of user education in driving upgrades, and why experimenting with features and tiers is essential for subscription growth. Top Takeaways: 🔎Edu…
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This episode is shorter than usual and will be featured in RevenueCat’s State of Subscription Apps report. On the podcast: Keeping users engaged through habit-forming experiences, Duolingo’s approach to reactivating churned users, and why building daily habits is the foundation for long-term retention success. Top Takeaways: 🏎️ Act fast - most user…
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On the podcast, I talk with Anton about building sustainable viral growth loops at scale, how to effectively gamify user incentives, and why emotional connections drive more value than economic ones. Top Takeaways: 🚀 Building sustainable virality through strategic growth loops Sweatcoin’s explosive growth didn’t happen by chance. Anton detailed how…
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This episode is shorter than usual and will be featured in RevenueCat’s State of Subscription Apps report. On the podcast: why the Big Mac Index falls short for app pricing, how Flo Health’s regional pricing strategy drives profitable user acquisition in emerging markets, and the importance of aligning pricing with long-term user retention for sust…
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This episode is shorter than usual and will be featured in RevenueCat’s State of Subscription Apps report. On the podcast: balancing freemium and premium experiences, how The Weather Company uses AI to predict subscriber behavior, and why focusing on user value rather than monetization is the key to subscription success. Top Takeaways 🎯Target high-…
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In Episode 46 of *Redefining Energy - Tech*, host Michael Barnard concludes his talk with David Fishman. David examines China's dynamic energy landscape, emphasizing the rapid development of wind, solar, and energy storage technologies. The episode begins with a comprehensive analysis of wind energy, highlighting significant growth in onshore wind …
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On the podcast I talk with Ashley about what makes Google App Campaigns so effective for growth, proven optimization strategies, and why lower CPMs can sometimes be a warning sign rather than a win. Top Takeaways: 📈 Google App Campaigns: Big reach, but fewer levers to pull Google’s ad platform delivers massive scale - search, YouTube, the Play Stor…
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In Episode 45 of the *Redefining Energy TECH* series, host Michael Barnard invites David Fishman, a senior manager at Lantau Group. David delves into the intricacies of China's energy landscape, highlighting the country's efforts to balance growth and decarbonization. Despite coal's continued dominance, constituting 55-60% of the energy mix, Fishma…
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On the podcast I talk with Sherina about why performance marketing eventually hits a ceiling, how to think about measure brand marketing, and why sometimes ignoring A/B test results leads to better outcomes. Top Takeaways: 📈Freemium can’t feel cheap Deezer once took a hardline approach to converting free users – limiting features to push them towar…
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In this second part, Gavin Mudd, director of the Critical Minerals Intelligence Center at the British Geological Survey, shares insights into the pivotal role of minerals in the energy transition. While Australia boasts abundant resources, Mudd highlights significant gaps in expertise and labor to extract these materials efficiently. He underscores…
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