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.
Photon Calc screenshots
Ranked alternatives
Showing 361–380 of 1,000 ranked alternatives.


Cell Imaging
Thermo Fisher Scientific
View images, share, and explore protocols
Access fluorescence microscopy resources including image galleries, protocol details, and material lists. View full-screen images with descriptions and spectral data. Share images easily and provide feedback through an in- button.








Triple Pendulum
Torbjorn Sjogren
Simulate motion with Runge-Kutta
Simulate a motion using Runge-Kutta method for differential equations. Adjust initial conditions by tilting the device. View real-time movement and energy distribution.

Dynamic Periodic Table
Sparrow Development LLC
Explore elements and their properties
Explore a zoomable with detailed information on each element. View atomic number, symbol, weight, and properties. Tap to access additional data like electron configuration and reactivity. Share element details via social media or email.


Arrco Compressor
AMP Microcomputer Inc.
Cross reference compressors and track data
Access data for field use, including cross-referenced information for over 5,000 units. Retrieve performance, electrical, and mechanical specifications. View contact details and warranty information. Identify the correct for specific applications.

Wahoo VPN Desktop
Wahoo Software
Connect securely and access globally
Securely connect to global servers for private browsing. Encrypt internet traffic with advanced v2ray protocol. Access content from different regions. Protect devices across iOS, Android, Windows, and macOS.

NPKalc - Fertilizer Calculator
Barton Cone
Calculate doses and units
Calculate requirements for granular and liquid types using various unit measurements. Input soil test results and desired nutrient levels. pplication rates for lawns, gardens, and crops. Export results for record-keeping.

PetroFrac
Richard H Street
Calculate SG, Watson K, and MW
Calculates specific gravity, Watson K, and molecular weight using D86 distillation temperatures and API gravity. It determines density, viscosity, heat capacity, and enthalpy of liquid at a specified flow temperature.




Energy Cycles
Muralidhar Shenoy
Energy conversion cycle analysis tool.
The app covers four energy conversion cycles for energy efficiency studies. It presents generic models of steady state energy devices with constant state properties for analysis.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.