Sub Buddy app icon

Apps Like Sub Buddy for iPhone and iPad

Use slide-rule for U-boat attacks

A digital U-boat attack simulation allows users to perform torpedo calculations and submarine mission planning.

by Zoe Summers★ 5.010 ratingsEducation$5.99Data updated 2026-09-18
App detailsView in App Store

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Ranked alternatives

Showing 581–600 of 1,000 ranked alternatives.

  2. Magic Eye Stereogram Quiz app icon

    Magic Eye Stereogram Quiz

    Alexander Mokrushin

    See hidden images in pictures.

    This app presents stereograms for users to view hidden 3D images. Users answer questions about the revealed images, with scoring based on the number of attempts.

    ★ 1.86 ratingsGames$0.99Data updated 2026-09-12
    App details
  1. DuctSizer app icon

    DuctSizer

    MULBERRYSOFT COMPANY LIMITED

    Calculate duct sizes with finger slide

    Calculate duct sizes quickly with finger sliding for precise measurements. Display equivalent round and rectangular dimensions. Support IP and SI unit conversions. Perform accurate calculations for efficient system design.

    ★ 0.00 ratingsUtilities$4.99Data updated 2026-09-06
    App details
  14. Feedbag app icon

    Feedbag

    Digitree Software Ltd

    ★ 0.00 ratingsEntertainmentFreeData updated 2026-09-13
    App details

How we rank alternatives

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