Margelo’s depth is real and publicly verifiable, which is rare in this industry. Their own site publishes 361,808,341 downloads across their open-source projects, stated as over 362 million, and 39 senior developers on the team.1 VisionCamera heads that open-source list, described on their own site as the most powerful Camera framework for React Native, alongside MMKV, Nitro, Fast TFLite, Quick Crypto, Keyboard Controller and Legend List.1 An earlier version of this page carried 22 million downloads, which understated their published figure by more than an order of magnitude, so we have corrected it upward.1 At the bleeding edge of React Native internals, JSI, native modules, frame processors, they are in our view among the strongest teams in the German-speaking world, and we say that without flinching.
The published client work backs it up. A Margelo engineering post describes work with Discord on React Native New Architecture performance, reporting a 26% reduction in jank frames on the new-architecture Android app, with optimisations upstreamed into Reanimated feature flags and the Shared Animation Backend in React Native core.3 Their Trusted By list names Discord, Shopify, Meta, Facebook, Expensify, VSCO, WalletConnect, Rainbow and Status among others.1 On the Margelo pages we reviewed on 4 August 2026 we did not find Red Bull on that list, so this page no longer names it.1
Scope is where the two of us differ, and scope is not a shortcoming. Their four published service lines are Idea to AppStore, AI Integrations, Extend your Team and Camera Integrations, and the published capability list runs React Native, Swift, Kotlin, C++, Expo, native modules, camera, AR, on-device intelligence and Web3.1 Their GitHub profile puts it plainly: an app development agency focused on React Native.4 Their Clutch profile records the service mix as 80% mobile app development, 10% custom software development and 10% web development, with 90% React Native.5 That is a deliberately deep mobile scope, and it is exactly what you want when the mobile app is the hard part.
Our job is wider and less glamorous: the whole product. Backend, web, the mobile app, the AI features, the product call, and the pushback when a feature should not ship. We build React Native too, and we will happily use Margelo’s open source when it is the best tool, because it often is.
If you have a CTO and a React Native performance problem, go to Margelo. Their Clutch profile publishes a minimum project size of $5,000+ and an hourly rate of $200 to $300, so you can size an engagement before you call.5 If you have a product problem that happens to include an app, see how we build mobile products
.