Apps Like e: Spacetime Converter for iPhone and iPad
Convert length and time relativistically.
The app converts between length and time using geometrized units where the speed of light is unity. It allows users to think about the world differently by converting units like inches to seconds or miles to years.
e: Spacetime Converter screenshots
Ranked alternatives
Showing 761–780 of 1,000 ranked alternatives.
Geonial USA
Oliver Kuehne
Guess US city locations on map.
The app challenges users to locate over 1,300 US cities on a map. Players place pins to guess locations, with closer guesses earning more points.
Stelar 3.14
Stylianos Karantonas
Convert units, track time, save results
Convert measurements for jewelry making with precise calculations. Calculate ring sizes based on diameter or circumference. Save and share conversion results. Access essential tools for accurate bench work and streamline measurement processes.
Concrete Calc Pro
Volodymyr Budnichenko
Calculate needs accurately
Calculate materials for slabs with precise volume and quantity estimates. Input dimensions and select units. Convert measurements and view results in cubic meters, yards, or feet. Export data for project planning.
HbA1c Converter mmol/mol to %
Krzysztof Gwiazda
Convert units and eAG levels
Convert values between DCCT units (%) and IFCC units (). Calculate estimated average glucose (eAG) from mg/dL or mmol/L. Switch between units and view converted results.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.