Intervalometer is an automated app to trigger camera shutter with a self-configured timed interval. Normal time-lapse mode in most smartphones only allows auto exposure without additional controls on exposure settings and RAW format. This app works like an actual intervalometer for smartphones it automates camera shutter triggering and it works on any camera app for Android 7+ and certain camera apps for Android 5 and 6. With intervalometer and its flexibility to control time-lapse configurations the following types of time-lapse are possible.
1. Low light time-lapse
2. Long exposure time-lapse
3. HDR time-lapse
4. Milky Way time-lapse / Star Trails time-lapse
5. Holy Grail of time-lapse (Day to night time-lapse)
6. Wide angle time-lapse (only on LG G6/V20/V30 wide angle lens)

Other than time-lapse it can also be used to capture frames for image stacking in post-process (on other apps) to achieve higher quality images and etc.
1. Image stacking
2. Star trails
3. Shooting lightning

Features
- Full control on time-lapse configuration (delay timer interval time number of shots)
- Infinite mode
- Works with Any camera app (shutter button position can be reconfigured)
- ‎Time-lapse calculator

Compatibility
For Android 5 and 6 please check camera apps compatibility with the Lite version
https://play.google.com/store/apps/details?id=com.mobilephoton.intervalometerlite&hl=en
For Android 7 and above it is compatible with any camera apps.

Disclaimer: Intervalometer only automates photo taking process it is neither a camera app nor image processing app.