Developers could use this shared medical data to personalise apps tailored for medication tracking, disease management, nutrition planning and medical research. This includes the production of wallets and the production of apps for cloud-based mining (no apps will be permitted that allow local mining on iPhones specifically). The guidelines restrict the use of apps which will either generate excessive heat, put unnecessary strain on the resources of the mobile device, or drain the battery.
Apple also has an existing section addressing cryptocurrency apps on its App Store that's been in place since about 2014.
Now, the guidelines specify more than that. This could give Apple grounds to remove the Onavo app, although the software is still available despite the rules kicking in last week.
Apps facilitating Initial Coin Offerings (ICOs) must come from "established banks, securities firms, futures commission merchants ('FCM'), or other approved financial institutions".
Six months after crypto exchange Coinbase's app became the number one trending app on the App Store, Apple has now apps to provide wallet services under a caveat.
When consumers choose to share their health record data with trusted apps, the data flows directly from HealthKit to the third-party app and is not sent to Apple's servers.
The company has listed the complete guidelines on the section of cryptocurrency.
The only limitation that Apple are putting down is that no apps will be allowed that encourage payments of cryptocurrencies or the incentivisation of cryptocurrencies to people who download certain apps or advertise certain cryptocurrency-based apps. Cryptocurrency apps can't offer users virtual coin for tasks like downloading other apps, getting other users to download the app, or boosting social media activity.