Decay calc app icon

Apps Like Decay calc for iPhone and iPad

by Alexey Baranov★ 1.01 ratingsUtilitiesFreeData updated 2026-09-19

Decay calc screenshots

Ranked alternatives

Showing 261–280 of 1,000 ranked alternatives.

  1. FFT app icon

    FFT

    Andrew Smith

    Analyze audio and display frequency graphs

    Analyzes audio using Fast Fourier Transform to display amplitude vs. frequency graphs. Displays detailed spectral analysis in octaves. Supports iOS microphone or external microphones for accurate measurements.

    ★ 4.06 ratingsMusic$10.99Data updated 2026-09-08
  2. Age Calculator ++ app icon

    Age Calculator ++

    Nirav Patel

    Calculate age and birthday countdown.

    The app calculates a user's age in years, months, and days. It also shows the remaining months and days until the next birthday and the total days between any two dates.

    ★ 3.819 ratingsEntertainmentFreeData updated 2026-10-30
  3. Thermodynamics Calculator app icon

    Thermodynamics Calculator

    V PUGAZHENTHI

    Engineering calculations and reference tables.

    The app provides 44 thermodynamics and heat-transfer calculators, along with reference tables. It allows users to solve for any variable and switch between SI and USCS units instantly.

    ★ 4.030 ratingsUtilities$1.99Data updated 2026-09-29
  4. Calculator 3 in 1 app icon

    Calculator 3 in 1

    CAT VIET SOFTWARE DEVELOPMENT & MEDIA JSC

    Calculations made simpler than ever before.

    The app offers three calculating modes: STANDARD, STRING, and RPN. It supports precision to 31 digits and complex numbers in STRING mode.

    ★ 2.45 ratingsUtilitiesFreeData updated 2026-10-06
  5. RadioactivityCounter app icon

    RadioactivityCounter

    Rolf-dieter Klein

    Phone becomes radioactivity counter device.

    The app transforms a phone into a Geiger Müller counter for radioactivity measurement after calibration. It detects gamma and some beta radiation using the camera sensor.

    ★ 3.110 ratingsUtilities$4.99Data updated 2026-09-22
  6. Photon Calc app icon

    Photon Calc

    Black Cat Systems

    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.

    ★ 5.01 ratingsReference$2.99Data updated 2026-09-08
  7. Toble - Tracker & Spreadsheet app icon

    Toble - Tracker & Spreadsheet

    Ashley Thomas

    Track time, income, and habits

    Track time, income, expenses, and habits with a minimalist interface. Add data to instantly tally values and perform calculations. Switch between dark and light mode, share with others, or export to CSV for external viewing.

    ★ 4.511 ratingsProductivityFreeData updated 2026-09-23

How we rank alternatives

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