Riddler app icon

Apps Like Riddler for iPhone and iPad

by Zhuohao Yang★ 0.00 ratingsUtilitiesFreeData updated 2026-09-06
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Ranked alternatives

Showing 421–440 of 1,000 ranked alternatives.

  2. VPN Fox app icon

    VPN Fox

    WE MATES LTD

    Connect to VPN and access blocked sites

    Connect to a secure VPN to unblock social networks and access websites. Hide your real IP address and encrypt data. Use free VPN in many countries with no logs, time, or traffic limits. Access over 1,000 servers per country.

    ★ 4.718 ratingsUtilitiesFreeData updated 2026-09-06
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  4. Personal Info Keeper app icon

    Personal Info Keeper

    High Criteria Inc

    Store, organize, and access securely

    Store URLs, passwords, and text-based information securely. Organize data into categories and access it quickly. Add notes and set reminders for important entries. Sync across devices for consistent access.

    ★ 4.02 ratingsProductivity$0.99Data updated 2026-09-08
    App details
  7. Textin app icon

    Textin

    Ible Platforms Limited

    ★ 5.01 ratingsProductivityFreeData updated 2026-09-06
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  10. FT8 Decoder app icon

    FT8 Decoder

    Ronald Nicholson

    Decode FT8 signals from audio input

    Decode FT8 signals from audio or SDR sources. Support Level 1 decoding for standard callsigns or 13-character text. Generate FT8 message audio for testing. View decoded messages and metadata.

    ★ 4.28 ratingsUtilities$1.99Data updated 2026-09-06
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  14. Crypto: Cæsar and Vigenère ciphers app icon

    Crypto: Cæsar and Vigenère ciphers

    Maxim Aleksa

    Encrypt messages with Caesar and

    Encrypt and decrypt messages using Caesar and . Input a message, choose a key or keyword, and generate an encrypted output. Decrypt messages by entering the correct key.

    ★ 4.711 ratingsUtilitiesFreeData updated 2026-09-10
    App details

How we rank alternatives

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