Clean Slate – Clapperboard & L

18 reviews
Content rating
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

Clean Slate is a no-frills, no-nonsense, no-in-app-purchases clapperboard app and was developed in tandem with the actual requirements of professional film/video production by an industry expert.

Clean Slate is a tool to help you synchronize recording devices such as cameras and sound recorders in post-production by displaying a flash-frame and simultaneously playing a synchronization tone. Clean Slate allows you to enter notes and ratings for each take and save it on your device.

In post-production (i.e. your editing software), line up the video at the first frame the device running Clean Slate flashes with the start of the sync-tone on the audio track(s), done!


Small and responsive
The small file size ensures that the app downloads and launches as fast as you need it. No ads, no social media integration, no could nonsense, just a reliable tool.

Clean Slate only requests write permissions to store a shoot log locally on you device. No personal data (or any data at all, actually) will be submitted.

Once a take is in progress, Clean Slate will track in the background. No matter if you switch off the screen, close the app, or even your battery dies: When you come back and stop the shot, Clean Slate will have recorded the correct duration.

Clean Slate offers you to save a rating and a note with each take that can be stored automatically along with all meta-data in a file for later reference in your Documents folder. This CSV-format file opens up as a spreadsheet in MS Office, OpenOffice, or even Notepad. Further, Clean Slate can automatically increment provided file names.

Fit it to your needs: Set the countdown time, the appearance and behavior of the timecode display, color, and duration of the flash frame, choose one of many synchronization audio cues and more.

Clean Slate reads your device’s audio latency to offer the best synchronization experience in post-production. Further, it supports all common timebases (12, 15, 23.976, 24, 25, 29.97, 30, 50, 59.97, and 60 frames per second), free-run timecode mode and will automatically increment the take number.


1) Enter all data such as production title, scene number, and camera meta-data
2) Hold your device that its screen is visible to the camera(s) and its sound will get picked up by the microphone(s).
3) Hit "MARK!".
4) After a short countdown Clean Slate synchronously flashes the screen and plays an audio cue and start counting the take's duration.
5) When the take is finished, hit "CUT!"
6) Optionally add note or rating and hit "SAVE". Clean Slate will write it to a local take log.
7) Rinse and repeat*

* Do not actually rinse your device! ;)

Note: The app is still in development and might have some kinks to iron out. Please post any feature suggestions as a comment or write an email to support.
Updated on
Jun 11, 2019

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
18 reviews
A Google user
October 9, 2019
Would like to see simple up/down buttons for advancing scene and shot info instead of having to use the Android keyboard. Would make things alot faster and easier to use on set. Not big on having the 2 filename fields, would rather be able to have Director and DP listed instead along with MOS/Sync and Day/Night, Int/Ext, etc.It's pretty annoying that when you rotate your phone it clears the Shot number and you have to re-enter it. That creates all kinds of problems keeping track of where you are
10 people found this review helpful
Did you find this helpful?
Matthew Manire
January 23, 2021
Fantastic little slate app. I love that it logs take notes on a spreadsheet. Probably the most handy little feature. This is definitely not a replacement for a real slate, but for indoor close up shots, it's perfect and intuitive to use. It would be handy if it could be used in landscape, as that seems like it would use screen realistate more efficiently. Nevertheless, I would highly recommend! 4.5/5
4 people found this review helpful
Did you find this helpful?
A Google user
March 5, 2019
Still has kinks very similar in feature set to digital clapper without need to be online to sync shot log. 1) inadequate sync function on Pixel 2. Even at maximum sync interval didn't seem to make much difference when checking at 240fps 2) couldn't find shot log on phone under /Documents 3) would be nice to fix auto rotate to allow upside down for tail slate Uninstalled/refunded, will try again later when kinks #1 and #2 sorted out.
4 people found this review helpful
Did you find this helpful?
Pixel Prophecy
March 5, 2019
Thanks for giving it a try! Depending on number of background processes running on your device sync can be a bit off but you can adjust the latency manually in the settings, also negative values work there. If you're still interested please send an email to support/at/ because I am running out of characters in this box 😅

What's new

★ Added: American slating (activate in General Settings)