RPN-45 HD app icon

Apps Like RPN-45 HD for iPhone and iPad

Calculate like a scientific calculator

Simulate the HP-45 scientific calculator with photo-realistic visuals and animated keys. Perform all original functions and operations. Access a secret timer for 12-hour or 100-hour intervals. Switch to Super-45 mode for enhanced capabilities.

by Willy Kunz★ 4.86 ratingsProductivity$2.99Data updated 2026-09-08
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RPN-45 HD screenshots

Ranked alternatives

Showing 701–720 of 1,000 ranked alternatives.

  3. eLQ app icon

    eLQ

    Jean-Emmanuel Bibault

    Calculate radiation dose equivalents

    Calculate biological equivalent dose for radiation therapy using the linear-quadratic model. Select organs such as spine, heart, lung, liver, skin, or specify α/β ratios. Input dose and fractionation details to compute results.

    ★ 4.01 ratingsMedicalFreeData updated 2026-09-08
    App details
  16. laters app icon

    laters

    ICT Fractal Inc.

    ★ 5.01 ratingsProductivityFreeData updated 2026-09-12
    App details
  17. AepCalc app icon

    AepCalc

    Aepryus Software

    RPN scientific calculator for computers.

    The app is a reverse polish notation scientific calculator designed for computer use. It offers an 'On Top' mode and maps keys to the right side of an extended keyboard for convenience.

    ★ 0.00 ratingsProductivityFreeData updated 2026-10-05
    App details

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