Non-Renewing iOS Subscriptions with Unity IAP

piano 3d subscription screen

Today we are talking about iOS non-renewing subscriptions and Unity IAP. I implemented such feature in Piano 3D and the process was not straightforward at all, so it is worth to document it here. Again, in this article we are talking exclusively about iOS, Play store subscriptions are different and this info is not relevant to Android development.

What is subscription?

Subscription is a type of in-app purchase (IAP) that allows you to provide some services/content/features for a limited period of time. For example, full access to streaming service (Spotify, Netflix), ad-free access to piano tutorials (Piano 3D), access to a premium collection of photos or videos etc. The key point here is that users can buy subscriptions multiple times, that makes them a bit similar to consumable IAP. There are two types of subscriptions in AppStore: auto-renewable and non-renewing.


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Piano 3D released worldwide on iOS and Android

piano 3d

I have finally released Piano 3D worldwide on both iOS and Android. Download iOS version here, and Android version here.

This post will be the first one in the series about Piano 3D, it’s development and design processes, marketing and distribution. Today we are talking about the history.

Piano 3D Timeline

  • April 2014 - first commit in git
  • April 2014 - first release in Windows Store
  • May 2014 - scrolling and scaling added
  • May 2014 - started working on tutorials
  • June 2014 - new interface using new Unity UI
  • August 2014 - synth added
  • June 2015 - fifth release for Windows Store
  • September 2016 - started working on new UI for iOS and Android
  • July 2018 - worldwide release for iOS and Android

The History

It’s all started in 2014. It was my third year at Software Engineering department as an undergraduate student and writing my own application sounded like a good idea to improve my skills and get some real-world experience. I only had a quite old Windows-based pc so developing for Windows was my only choice at that time. Fortunately, Microsoft had just released Windows 8 with the new app store and, correspondingly, the new app type they called “Metro” applications. I mostly program in C#, so it wasn’t quite hard for me to start developing my applications, moreover, a local company called DCT with Microsoft support hold a competition of best Windows 8 apps, which was also a motivation.


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What is wrong with Unity3D IAP

visual studio on mac os

I’ve been working with Unity3D IAP plugin recently (it allows us to work with in-app purchases directly from unity). I think it could be better. At first, let me say it, Unity3D is a very good product, and Unit3D IAP is a great plugin too. I’m writing this not because I want to show how bad it is (it is a great idea, we need this!), but because I hope someone from Unity team can have fresh look at all these things and maybe avoid these mistakes in future.


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