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 881–900 of 1,000 ranked alternatives.
Web eID
Riigi Infosusteemi Amet
Authenticate and sign documents securely
Authenticate and sign documents online using Estonian digital IDs, including ID cards, e-Resident IDs, and residence permits. Verify identity for secure web transactions. Requires installation of ID-Software for desktop use.
PDF Office: Scan & Sign
StudyBridge LLC
Documents, pages, convert files
Create and PDF documents with a digital signature. physical documents to convert them into PDFs. Edit and fill out forms by adding text, notes, and annotations. Convert files to PDF format and share them directly.
Construction Calc – Estimator
Konstantin Khoroshun
Estimate materials offline instantly
Calculate material quantities for projects offline. Estimate concrete, drywall, paint, roofing, gravel, tile, insulation, and stairs. Input measurements for precise waste and conversion calculations. Export results for job planning.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.