Time-lapse Calculator 4+

Timelapse Photo Video Planner

Dax Mackenzie Roggio

Designed for iPad

    • 4.5 • 23 Ratings
    • $0.99



A quick and easy time-lapse calculator with three modes. The default mode allows you to determine the shutter interval (time between shots) that is required to achieve a desired video clip length for a given recording duration.

The Time-lapse Calculator can also be set to calculate the necessary event duration (recording time) or target duration (video clip length) based on the other variables.

Most time-lapse utilities only allow you to enter the recording duration and shutter interval. Then they calculate the duration of the video clip that would result. That is rarely useful.

If you know how long you would like the final clip to be, your video frame rate, and how long you plan to continue capturing exposures to cover the event, then it is the shutter interval variable that you need to calculate. If you know what shutter interval you would like use and how long your video clip needs to be, it is the recording time that you need to calculate.

In addition to the intervalometer functions, the Time-lapse Calculator estimates the memory card storage capacity that will be required for RAW or high-quality JPG image files, based on the megapixel count of your camera.


• Calculate shutter interval, event duration (recording time), or target duration (video clip length)
• All standard NTSC, PAL, and film frame rates (FPS): 15, 23.976, 24, 25, 29.97, 30, 48, 50, 59.94, 60, or 120
• Memory card data estimator
• Home screen quick actions using 3D Touch: Shutter Interval, Event Duration, or Target Duration mode
• Copy to Clipboard with one touch (inputs and results)
• Maximum event duration (recording time): 999 days
• Clean, intuitive interface is easy to use while offering features for professional photographers and videographers
• Universal app for iPhone and iPad
• Responsive layout optimized for all device sizes and models, from iPhone SE through iPhone 8 Plus and iPhone X, and iPad mini up to iPad Pro

What’s New

Version 2.0.4

• Tapping down button when input field is at 0 now cycles to the max value, and tapping up when input field has reached max value now cycles back to 0

Ratings and Reviews

4.5 out of 5
23 Ratings

23 Ratings

SY-IMC27 ,

Basic tool / works well

Basic tool - works well. 2 dream features I’d love to see : #1 Would be nice if down arrow would cycle from zero to max value of field (say 0 seconds & hitting down arrow would go to 59) #2. Allow 1:1 time parameter so this can be used as a data calculator tool. ( 1 hour event at 1 hour playback at frame rate and res would yield data calculation). Just a thought … would make this a one stop app!

Developer Response ,

Thank you for your feedback! I like the idea of cycling through to the max value with the down arrow. I will consider it! The current storage calculations are so rough that I wouldn’t want to present that as a major feature in its current form, but that’s something to think about. Thanks!

comjnky ,

Does not work

I usually never by apps. This is maybe the second app in 5 years I have ever paid for. And guess what, it does not even work. Now that's disappointing!
The problem is that when I try and enter something in the information fields nothing happens. It will not allow me to enter anything. There is no response, nothing happens. So, I bit the bullet and paid, now I feel like they just stole my dollar.
Is there any support to get this working??

Developer Response ,

This sounds like a spam review, but thanks for the 5 stars?! If you are having legit concerns, we do list our support page in the description. Please be aware that you must use those big arrow buttons to set the fields, although direct input is on the list of features to be included in future versions.

Tanks Dad ,

Works great

Granted, part of my motivation for writing a review is to contradict the obvious spam review. The app works great keeps my feeble mind from having to calculate so many zeros and decimal points and then wonder if I did it correctly. For the price it is well worth the ease of mind to know you got a legitimate calculation. Works well, works easy, works predictably. Nothing fancy just basic math.

Developer Response ,

Thanks for taking the time to contradict the spam review!

App Privacy

The developer, Dax Mackenzie Roggio, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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