Photon Calc app icon

Apps Like Photon Calc for iPhone and iPad

Calculate energy and transmission

Displays cross sections for gamma/x-ray photons, fluorescence, and edge energies. It calculates transmission and attenuation for any energy. Information includes atomic number, mass, density, and energy values.

by Black Cat Systems★ 5.01 ratingsReference$2.99Data updated 2026-09-08

Photon Calc screenshots

Ranked alternatives

Showing 741–760 of 1,000 ranked alternatives.

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    Korubin Tools

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    ★ 0.00 ratingsUtilitiesFreeData updated 2026-09-09
  2. Subnet Calc app icon

    Subnet Calc

    Swipe Stack Ltd

    Calculate subnet details for IP addresses.

    The app calculates subnet details including base IP, net mask, wildcard, network and broadcast addresses. It also shows minimum and maximum host addresses, total hosts, and subnet class, indicating if it is a private range.

    ★ 0.00 ratingsBusiness$0.99Data updated 2026-09-27
  1. Fuji FA200-180AO app icon

    Fuji FA200-180AO

    Gyronimo, LLC

    Calculate aircraft mass and balance.

    The app calculates Weight & Balance, including Center of Gravity and Takeoff/Zero Fuel Mass. It sends a Mass & Balance Summary to an email address and displays results with high-resolution graphics.

    ★ 0.00 ratingsEducation$14.99Data updated 2026-10-15
  2. PhoneGo app icon

    PhoneGo

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    ★ 0.00 ratingsUtilitiesFreeData updated 2026-09-06
  3. Piper Archer III Performance Pad app icon

    Piper Archer III Performance Pad

    Gyronimo, LLC

    Calculate aircraft performance data quickly.

    The app calculates mass and balance, takeoff and landing distances, climb data, cruise performance, and stall speeds. It uses actual data from the Piper PA-28-181 Archer III Pilot's Operating Handbook for calculations.

    ★ 5.01 ratingsEducation$14.99Data updated 2026-10-14

How we rank alternatives

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