Si4Keyboard app icon

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.

by 文焕 陈★ 0.00 ratingsUtilities$0.99Data updated 2026-09-06
App detailsView in App Store

Ranked alternatives

Showing 601–620 of 1,000 ranked alternatives.

  2. BarTyper app icon

    BarTyper

    Marson Technology CO., LTD.

    ★ 0.00 ratingsUtilitiesFreeData updated 2026-09-06
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  4. eCipher app icon

    eCipher

    Commlink InfoTech LLC

    ★ 5.01 ratingsBusinessFreeData updated 2026-09-06
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  8. Tabris.js app icon

    Tabris.js

    Innoopract Informationssysteme GmbH

    ★ 0.00 ratingsReferenceFreeData updated 2026-09-09
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  9. Secret Diary - My Journal app icon

    Secret Diary - My Journal

    Ali izmirli

    Secure notes with PIN and biometric locks

    Secure personal with PIN and biometric protection. Encrypt entries end-to-end. Add photos and voice recordings. Track moods with emojis. View calendar and statistics. Supports dark mode. Premium version offers unlimited entries and lifetime access.

    ★ 0.00 ratingsLifestyleFreeData updated 2026-09-06
    App details
  10. AEI Keyboard Note German app icon

    AEI Keyboard Note German

    Toshihiro Nakane

    Type messages easier and faster anywhere.

    The app features a friendly alphabetical character array with multi-input keys for faster typing. It includes ideal key sizes, arrow keys for caret movement, and dedicated keys for German extended characters.

    ★ 1.03 ratingsUtilitiesFreeData updated 2026-09-12
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  15. FoxVault app icon

    FoxVault

    Hangzhou Gravity Cyberinfo Co.,Ltd

    ★ 0.00 ratingsUtilitiesFreeData updated 2026-09-06
    App details
  16. OC KYC app icon

    OC KYC

    Ascent Global Fintech Solutions Pte Ltd

    ★ 5.01 ratingsFinanceFreeData updated 2026-09-06
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  18. AEI Keyboard Note English app icon

    AEI Keyboard Note English

    Educare

    Type faster and easier always.

    The app offers a keyboard designed for faster and easier typing with one hand. It features a friendly alphabetical character array with multi-input keys and ideal key sizes to reduce errors.

    ★ 1.73 ratingsUtilitiesFreeData updated 2026-09-11
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How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.