
Your own stop-motion time-lapse
After four scans, SnapNailZ strings your photos together into a short stop-motion of a nail changing over time. It grows with every scan you add, and you can save it or share it.
Nail-biting photo journal
Snap your hands each day. Watch each nail, over time.
An AI grader gives every scan an honest grade and specific feedback. Your photos build a timeline for each nail, so you can see what is changing instead of guessing.
Free during the public beta · No account needed · Not a medical device

How it works
It takes about a minute. No perfect nails required, just a hand and some light.

Lay each hand flat, back of the hand up, fingers spread. A guide helps you frame it the same way each time.
Each scan gets a nail score out of 100 and specific notes, nail by nail. If a photo isn’t clear enough to judge, it tells you instead of guessing.


Every scan joins a timeline for each finger. Look back whenever change feels slow. Illustrative photos; your pace will vary.
Inside the app

After four scans, SnapNailZ strings your photos together into a short stop-motion of a nail changing over time. It grows with every scan you add, and you can save it or share it.
Each scan is cut into close-ups, so you can follow one nail on its own, from the first photo to today.
Pick two days and compare the same nail side by side. When photos are too different to compare, the app says so.
Log when an urge shows up and what was going on. Choose what you will do instead next time.
A daily nudge at a time you choose. Tap it and the camera opens, ready for today’s scan.
While you line up your hand, the screen won’t dim or lock on you.
From English and Español to हिन्दी, 日本語 and Kiswahili.
Every feature is free while the beta lasts. Nothing is charged unless you choose to buy something later.
Your photos, plainly
Your journal lives on your phone. No account, no name. Here is the rest, without the small print.
Questions
Keep a photo journal of your nails. Scan the back of each hand, get an honest grade with specific feedback, follow every nail on its own timeline, and make a small plan for the moments you tend to bite or pick.
No. Photos show appearance, not behaviour. Lighting, angle, trimming and polish can all change what a photo shows. SnapNailZ uses your own reports alongside usable photo evidence, and tells you when a comparison is uncertain.
Your history stays. Log the moment if you want, notice what was happening, and return to your plan. One difficult moment does not erase the effort that came before it.
Every feature is free during the public beta. If paid plans become available later, prices and renewal terms will be shown before you choose to purchase. You will not be charged automatically just because you used the beta.
Your journal is stored on your device. Scans are sent to Google through Firebase AI Logic for grading; photo comparisons use our analysis service. During the public beta, scanned photos may also be retained for up to 24 months to test and train the nail analysis, without your name or an account. The app shows a photo code you can quote to ask us to delete them. See our privacy policy and data-deletion page for details.
No account is needed. Your journal lives on your device, so do not assume it will sync to another phone. Device backups may include app data according to your system settings.
No. SnapNailZ is a personal habit journal, not a medical device, diagnosis or treatment. It cannot confirm recovery or measure exact nail growth. For pain, swelling, injury or concerns about your nails or skin, contact a qualified clinician.
Start today
Scan both hands tonight. In four scans, you’ll have your first time-lapse.
Free during the public beta. How beta photos are used.
