The company took this step after hidden cryptocurrency mining has become the most popular cybercrime trend among malware developers this past year.
Apple's Health Record, which features in the health app, was launched in the United States, in January 2018.
"Apps should not rapidly drain battery, generate excessive heat, or put unnecessary strain on device resources", the company stated in the paragraph banning cryptocurrency mining processes from running in the background.
While the idea of mining cryptocurrency on an iPhone is nearly laughable, the message doesn't appear to be targeting apps built for the objective of mining cryptocurrency; those were already banned in a 2014 update.
"With the Health Records API open to our incredible community of developers and researchers, consumers can personalize their health needs with the apps they use every day".
Addressing the rising frauds with the unregulated initial coin offering-based (ICO) fundraising technique, Apple is now only allowing apps from established banks, securities firms, futures commission merchants ("FCM"), or other approved financial institutions.
Another section of Apple's App Store review guidelines allows apps to mine for cryptocurrencies only if the process is performed off the device.
Apple Books has been completely redesigned and updated to put the focus on the user by personalizing their experience based on their interests and the books they have read.
Apple has now made a decision to take stern steps to prevent such scenarios from happening again, mainly because mining operations tend to drag down the OS, making the entire device slower, and diminishing the well-crafted macOS and iOS experiences.
As bitcoin prices peaked near $20,000 in December 2017, Apple unveiled a new section of guidelines specific to cryptocurrencies and ICOs on December 20. However, only official digital wallets providers and exchanges will be able to post their apps, potentially cutting out shady third-party software from facilitating cryptocurrency transactions.