I don’t know what these negative reviewers are blabbing on about. It’s exactly what it’s supposed to be - a simple, fast time-lapse field calculator that is both free and without annoying ads. If someone wants a bigger app, they should go buy a bigger app. Now I can spend a little less time fiddling with the calculator on my phone and more time paying attention to my cameras and changing conditions for fewer lost opportunities. Thanks!

Trying to figure out the math behind my starlapse at 1:30 am was no fun. Found this app, helped me in 5 seconds. Worth the 5 star review. “Hmm. How long will I need to keep this going to give me an 8 second clip vs. a 10 second clip?” Instant results. Put it my interval (shutter+noise reduction time), how long of a clip I want, and bam.. exactly how long it’s going to take.

It does just what it says with a clean interface. It took a second or two to grok it, but now I love how quick it is for me to use.

This app is useless if you want to calculate how many shots per time unit. Works great the other way around though, ie you plug in the interval and number of shots and it tells you length of clip at various frame rates. Wish it was more user friendly.