Several lightweight animation tools are optimized for older devices and offer robust free tiers. Applications like RoughAnimator, Animation Desk, or Pixel Studio provide excellent frame-by-frame tools that may run more efficiently on older hardware architecture. To help narrow down your options, tell me: What or release year of the app
Customizing the number of frames shown (previous and next) and adjusting their opacity.
, there is a niche ethical argument: If you already paid for the premium unlock back in 2018 (one-time purchase), but the new update removed that purchase and moved to a subscription—installing an old APK that respects your original license key is considered "abandonware" preservation.