Effort, not calories
Two taps a day: your weight and how the day felt. Quick logs for a meal, a drink, movement, a note or a GLP-1 dose. No calorie counting, no barcode scanning, no shame when a day goes sideways.
A weight journey companion
Any diet. Your journey.
Keto, fasting, GLP-1, a 90 day rotation or no diet at all. Undiet keeps one honest timeline of what you did and how it felt, and leaves the calorie counting to someone else.
Download on the App StoreGet it on Google Play- Effort, not calories
- Photos never leave your phone
- Free to start
My journey, on iPhone and Android
Every diet in one timeline
A journey is a timeline of diets.
Every stretch of the road is tagged with the program you were on, or with no program at all, which counts too. Your own weight, sliced by what you did, answers the only question that matters: what works for me. Run your finger along it.
KGNow · Fasting 16:8 · day 4398 programs in the catalog. Start one, switch, pause, come back. The timeline keeps the whole story.
What it does
Built for the long road, not the first week.
Every diet in one timeline
A catalog of 98 programs, from fasting windows to GLP-1 therapy to no diet at all. Start one, switch when it stops fitting, and see each period next to the others on one graph.
Photos that never leave your phone
Progress photos are cut out on the device and stored only there. A ghost overlay lines up today with any earlier day so you can compare privately. Nothing is uploaded, not even to us. There is no before and after post, and there never will be.
A community that rewards showing up
Posts and comments from people on the same road, under nicknames. Credits are earned for participating, never for kilograms. Report and block are one tap away, and an AI moderator keeps the tone supportive.
GLP-1 and after
Log doses alongside everything else, watch the trend across the therapy and keep going when it ends. The maintenance phase gets its own dashboard, because the hardest part often starts after the last dose.
The app
Calm on purpose.
Undiet Plus
The journey is free. The deeper picture is Plus.
Everything you need to keep a journey costs nothing. Undiet Plus adds the analytics for the long road, with a 7 day free trial on the yearly plan. Cancel anytime in your store settings.
foreverThe whole journey, on one timeline.
- Daily check-ins: weight and how the day felt
- Quick logs: meal, drink, movement, note, GLP-1 dose
- The catalog of 98 programs, one at a time
- Your journey graph across every program
- Private progress photos with ghost overlay compare
- The community, credits included
Or €6.99 / month. The 7 day free trial is on the yearly plan.
- Everything in Undiet
- Advanced analytics
- Several programs running at once
- Unlimited photo history
- Plateau dashboard
- GLP-1 maintenance dashboard
Billed through the App Store or Google Play. Cancel anytime in your store settings.
Questions
The honest answers.
Is Undiet a diet?
No. Undiet is a companion for whatever you are doing, including nothing in particular. It does not prescribe meals, calories or a plan. It keeps the record and shows you the picture.
What happens to my data?
Your account, check-ins, logs and community posts live on servers in the European Union (Frankfurt). Weight and feelings count as health data under the GDPR, so the app asks for your explicit consent before storing them. You can export everything from your profile, and closing your account deletes everything immediately. The full story is in the privacy policy.
Do my photos ever leave my phone?
No. Progress photos are processed and stored on your device only. They are never uploaded, never backed up by us and never part of a post. If you delete the app, they go with it.
Is this medical advice?
No. Undiet tracks, connects and visualizes what you log. It does not diagnose, treat or recommend. Talk to your doctor or pharmacist about any diet, fasting protocol or medication, including GLP-1 therapy, and never change a prescribed dose because of something you saw in an app.
How old do I have to be?
16 or older. Undiet is not for children and we do not knowingly keep accounts for anyone younger.
How do I cancel Undiet Plus?
In your Apple or Google subscription settings, any time. You keep Plus until the end of the period you paid for, and your data stays exactly where it is.
I used the old Undiet. Is my data gone?
No. Sign in with the same email and the app imports your earlier entries into your new account.
More in theprivacy policy, theterms of useand on thesupport page.
On iPhone and Android
Start with today.
Free on iPhone and Android. Two taps a day, and one timeline that finally tells the whole story.
Download on the App StoreGet it on Google Play