iPhone camera app · In beta
Nanofy Cam
A camera for iPhone that sets how big a photo will be before you press the shutter. The file that lands in your library is already the size you chose.
- What it is
- A camera app for iPhone that compresses photos as it takes them
- Saves
- Photos as HEIC or JPEG. With Pro, RAW as one DNG file on iPhones that support it. Video as HEVC
- Compression
- Six levels, from None to Oblivion, one tap apart
- Undo
- Keeps the full-quality original of a compressed photo for 3 days, or 1 to 30 days, or not at all
- Needs
- An iPhone with iOS 18 or later
- Account
- None. No sign-up, no email, no login
- Status
- In beta on TestFlight. Join the waitlist
What it does
Most ways of saving space work after the fact. You shoot at full size, your storage fills up, and weeks later you go back and shrink what you can bear to lose. Nanofy Cam compresses each photo while the file is being written, so the oversized version never lands on your phone.
You pick a compression level in the camera's top bar, the same way you pick a format or a lens. Here is roughly what each level saves on the main camera:
- None: original size
- Standard: about 10% smaller, tuned to look the same to your eye
- High: about 30% smaller
- Ultra: about 50% smaller
- Max: about 75% smaller, the smallest level that keeps HDR
- Oblivion: about 95% smaller, saved in standard dynamic range
None, Standard and High are free. Ultra, Max and Oblivion come with Pro.
One measured example: a 48.8 megapixel HEIC from an iPhone 17 Pro went from 4.47 MB to 2.26 MB at High, 49% smaller, with a structural similarity of 0.98 to the original. That photo did better than most. Why the levels save what they do.
Who it's for
You, if your iPhone or iCloud storage keeps filling up with photos you want to keep. Cam deals with the size at the shutter, so there is nothing to clear out later. It also suits anyone who has tried a compression app that wanted an account, or wanted to upload photos somewhere to do the work.
Your photos stay yours
Nanofy can't see your photos. There are no servers to send them to, and no analytics in the app. Where your files go next is yours to choose — your Photos library, your Watch, AirDrop, or nowhere at all.
Nanofy Cam works with Airplane Mode on, and makes no network requests of its own. Photos save to your Photos library, the same place Apple's Camera app writes to. If iCloud Photos is on, Apple syncs them to your own iCloud account. The privacy policy has the detail.
Other ways to make photos smaller on iPhone
How Nanofy Cam compares with your iPhone's own camera setting, and with websites that compress a file you upload.
| Question | Nanofy Cam | iPhone's High Efficiency setting | Online compressors |
|---|---|---|---|
| Compresses on your iPhone, with no upload | Yes | Yes | No, you upload it |
| Works in Airplane Mode | Yes | Yes | No |
| No copy left on the compressor's servers | Yes | Yes | No, a copy sits on their computers |
| You choose how small | Yes, six levels | No, on or off | Depends on the site |
Made with care
Text in Nanofy Cam follows your iPhone's text size and Bold Text settings. Controls carry VoiceOver labels, and the camera tones down its animations when Reduce Motion is on.
Nanofy is in beta, and the apps change with what testers tell us. Found a problem, or want something added? The feedback form on the beta page goes straight to the person who builds the apps.
Questions
Does Nanofy Cam upload my photos?
No. Your iPhone does the work, the app makes no network requests of its own, and there are no Nanofy servers for a photo to reach.
Can I undo the compression?
Yes, for a while. Cam keeps the full-quality original of a compressed photo on your iPhone for 3 days, outside iCloud and your backups. Open the photo in Nanofy Cam, tap ···, then Restore Full Quality. Live Photos, panoramas, RAW and video keep no original.
Is there an Android version?
Nanofy Cam is iPhone only for now. We plan to expand to other platforms later.
Try Nanofy Cam
It's in beta now. Join the waitlist and we'll email you a TestFlight invite.
Join the beta