Flattr
Multi & Double Exposure Merge
Flattr combines 2 to 7 photos into one calm, even frame. It averages your shots with equal weight, so every photo counts the same. Free, with no in-app purchases and no ads.
- Pricing
- Free
- Available on
- App Store
- Platforms
- iPhone and iPad
- Version
- 1.2.7 · 10 November 2026
Screenshots (04)
Features
(10)- 01
Equal Weight Merge
Flattr averages 2 to 7 photos with equal weight, so every photo counts the same in the result.
- 02
No Blending Modes
No Screen, Multiply or Overlay. The merge is a plain average, so the result keeps the tones of your photos.
- 03
Bracketed Series
Blend a bracketed series into one balanced average of light and shadow.
- 04
Cleaner Frames
Turn several repeated shots of the same scene into one cleaner frame with less visible noise.
- 05
Soft Motion
Smooth moving water, clouds or passing crowds into a soft, quiet look.
- 06
Photos and Files
Choose photos from your library, or open files directly, including RAW, JPEG, HEIC, PNG and TIFF. Library photos are scaled to 4096 pixels on the long edge before merging.
- 07
Simple Steps
Pick your photos, drag to reorder or remove one, tap Merge. No account and no settings to learn.
- 08
Check, Then Save
Zoom in to check the merged result, then save it to Photos.
- 09
On Device and Offline
Merging runs on your device and works offline. Your photos stay on your device.
- 10
Your Privacy Choice
On first launch Flattr asks whether it may send usage statistics and crash reports. You can change that choice any time from Privacy on the home screen.
Questions
(06)How does Flattr merge photos?
It averages 2 to 7 photos with equal weight, so every photo counts the same. There are no blending modes and no settings: pick your photos, tap Merge and save the result.
Does Flattr align my photos?
No. Flattr does not align photos, so shots from a tripod or a steady position give the cleanest result.
Can I see the result before saving?
Yes. When the merge finishes, you can zoom in to check the result, then save it to Photos.
Which photos can I use?
Photos from your library, or files you open directly, including RAW, JPEG, HEIC, PNG and TIFF. Library photos are scaled to 4096 pixels on the long edge before merging.
Do my photos leave my device?
No. Your photos stay on your device, and merging works offline. On first launch Flattr asks whether it may send usage statistics and crash reports, and you can change that choice any time from Privacy on the home screen. See our Privacy Policy for details.
Is Flattr free?
Yes. Flattr has no in-app purchases, no subscription and no ads.
