Apps Like Function Fitter for iPhone and iPad
Ranked alternatives
Showing 601–620 of 1,000 ranked alternatives.








JOYONWAY-Spa Control
Sun Hydraulics (China) Co., LTD
Spa equipment remotely
Water pump, air pump, and underwater light in the spa. Set temperature, heating time, and filter time. View real-time and historical energy consumption data including voltage, current, and power.



RTD Reference
Dohmann Engineering Services
Convert resistance to temperature and vice versa
Convert resistance values to temperature and vice versa for RTDs and thermistors. Support for over 70 RTD types and 9 thermistor types. Calculate temperature from resistance and display results in Celsius or Fahrenheit.

SignalClock
Masafumi Endoh
Digital clock with time signal.
The app provides a digital clock with a time signal function. It offers five distinct sound sets, including digital clock sounds, cuckoo, voice, Whittington chime, and church bells.



Face4Pass
Giuseppe Cigala
Create document photos for IDs.
The app allows users to create document photos for IDs and passports. It offers image editing tools for quality improvement, background removal, and custom sizing with DPI settings.


Lux-Meter
Shenzhen Jumaoyuan Science and Technology Co., Ltd.
Record and control device functions via Bluetooth
LuxMeter allows users to control recording, reading, and deleting functions via Bluetooth. It displays illuminance curves to show parameter trends over time.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.