Apps Like Si4Keyboard for iPhone and iPad
Secure input with local encryption
Si4Key provides local encryption for keystrokes, ensuring input stays on the device. It includes one-tap digital signature for secure authentication. Offers offline key management for secure identity verification without internet dependency.
Ranked alternatives
Showing 441–460 of 1,000 ranked alternatives.
Rule of Proportion
Glindemann, Sennoun, Langer GbR
Solve proportions with 3 variables
Solve problems by entering three of four variables. Perform calculations using the . Store input history and view detailed solutions. Support entering fractions, decimals, and constants. Remove ads for an ad-free experience.
TrustKey — OTP for family
Aleksandr Poliakov
Generate OTPs for secure verification
Generate time-based one-time passwords that change every 30 seconds. Share secure verification keys via QR code. Track used codes. Function offline without internet. No registration or server sync required.
Offline, Secure LLM Chatbot AI
Christian Neubauer
Run AI models locally and offline
Run AI models locally for fast, private processing. Chat with AI without internet or ads. Store and manage models on-device. Access advanced features without cloud dependency. Control AI interactions directly on your device.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.