Founder of Maxint here, we just launched Orca (https://orca.maxint.com/)
One major hurdle for us, following the deployment across iOS, Android, Linux, MacOS, Windows and Web, was monetization. There was no standardized store, schema or architecture to define, integrate and track subscriptions, consumables and non-consumables across platforms.
We tried RevenueCat and Adapty, however both were limited to mobile and web, while we still had to manually set up all products and entitlements in each of the stores - Google PlayStore, Apple AppStore and Stripe.
Both providers had no support for MacOS, Linux and Windows, and raising GitHub issues left us hanging for months, while our users were limited to use their subscription on a single platform only.
This forced us to build a monetization orchestration platform supporting all major operating systems. We launched it internally, 12+ months ago and we tested it heavily with thousands of users. Early this year we implemented an MCP server, enabling us to use internal agents to interact with the stores, set up products and to get insights. We also added support for TypeScript, Swift and Kotlin, in addition to Dart/Flutter with more SDKs coming soon.
Now we are launching in public and you can get started for free.
One last thing. We eliminated the revenue tax, I wrote a detailed analysis on our blog and I will appreciate your feedback regarding Orca, our pricing model and your experience implementing subscriptions.