Absolutely you can—this is one of the most common monetization models for iOS apps, and Apple provides official tools and clear guidelines to make it work smoothly. Here’s what you need to know to pull it off right:

1. Use Apple’s In-App Purchase Framework (The Recommended Route) #

The most reliable, low-hassle approach is to leverage auto-renewable subscriptions with a built-in 30-day free trial. Apple handles all the trial tracking, expiration, and payment processing, so you don’t have to worry about users bypassing custom logic.

• Head to App Store Connect, create a subscription product, and configure the 30-day free trial during setup.
• When users sign up, they get full access to your app for 30 days without being charged. After the trial ends, Apple will automatically charge their payment method unless they cancel the subscription beforehand.
• Implement the flow using StoreKit (or StoreKit 2 for newer, more intuitive APIs)—this includes checking if a user is eligible for a trial, displaying subscription options, and restricting access once the trial expires.

2. Custom Trial Logic (For More Control) #

If you need specific behavior that Apple’s subscription trial doesn’t cover (like limited feature access during the trial instead of full access), you can build your own trial system—just make sure you follow Apple’s rules closely:

• Avoid device tracking: Never use identifiers like IMEI or device UUID to track trials (this violates App Store guidelines). Instead, use a user account system (Apple Sign-In, email login) to link the trial to a unique user.
• Store data securely: Keep trial start/end dates on your backend server, not just local device storage—users can reset their device to bypass local tracking.
• Be transparent: Clearly communicate trial terms upfront (duration, what happens after expiration, subscription pricing) so users know exactly what they’re signing up for.
• Stay compliant: Don’t lock core app functionality in a way that goes against Apple’s guidelines—for example, if your app is a productivity tool, you can’t lock basic note-taking behind a paywall if it’s not a subscription-based offering.

3. Critical Guidelines to Follow #

• Full transparency: Disclose trial duration, post-trial pricing, and cancellation steps clearly before users sign up. Apple requires this info to be easily accessible.
• No dark patterns: Don’t trick users into subscribing—avoid hidden charges or hard-to-find cancellation options.
• Stick to App Store rules: Make sure your app aligns with all App Store Review Guidelines, especially those related to subscriptions and in-app purchases.

If you’re new to this, I’d strongly recommend starting with Apple’s auto-renewable subscriptions—they handle most of the heavy lifting, and users are already familiar with the flow.

内容的提问来源于stack exchange，提问作者user8861241