Ad-ware or Free trial
Non-subscription apps may offer a free time-based trial period before presenting a full unlock option by setting up a Non-Consumable IAP item at Price Tier 0 that follows the naming convention: “14-day Trial.” Prior to the start of the trial, your app must clearly identify its duration, the content or services that will no longer be accessible when the trial ends, and any downstream charges the user would need to pay for full functionality. Learn more about managing content access and the duration of the trial period using Receipts and Device Check. - Apple Store Review Guidelines
Time-based trail mode is finally here.
There are always some people not really appreciate free or ad-ware from review-system experiences and I hate spending time on solving isses brought by implementing advertising.
Even though my purpose of OkidoKey Lite is to keep a free version for the community, nonsense bad reviews still make me sad sometimes.