When macOS say that it cannot verify that an app is free from malware, it may be malicious software after all.
Family Sharing is Supported for All In-App Purchases
All non-consumable in-app purchases now supports Family Sharing – buy once and share your software with all of your family members.

BiggerPicture 1.3.0 Release Notes
BiggerPicture fully supports Apple Silicon and macOS 11 “Big Sur”.

Speech Timer 2.6 Release Notes
Speech Timer 2.6 adds support for Apple Silicon and sports a design that is at home with macOS 11 “Big Sur”
Go Edit 1.2.0 for iOS Release Notes
Go Edit 1.2.0 adds multiple windows support on iPadOS
Go Edit 1.1.3 for iOS Release Notes
Go Edit 1.1.3 improves stability and compatibility while still supporting iOS 9.
BiggerPicture 1.1.9 Release Notes
BiggerPicture 1.1.9 uses the GPU when running image enlargement when it is running as the foreground application. But it would switch to CPU-only when switched to the background to ensure overall system performance.
Speech Timer 2.4 Release Notes
Speech Timer 2.4 for iOS is available in the App Store. New features includes improved iPadOS support and updated notification system

How to Print a Poster?
Printing poster images requires a 19 megapixel source to get a good quality output. However even the iPhone’s camera can only produce 12 megapixels. What if you can get quality poster prints from any source?
BiggerPicture 1.1.8 Release Notes
BiggerPicture 1.1.8 addresses a number of crashes, improves reliability during restoration, and fixes compatibility problem with HEIC files under macOS Catalina