Short answer: A good weight-loss injection tracker reminds you of your dose day, helps you rotate your injection sites, logs your side effects and weight, produces a readable summary for your doctor's appointment and states clearly where it sends your health data. Compare the checklist below with the store page and privacy policy of the app you are considering.
Disclosure: This article was written by the team that builds Haftra, so it is not an impartial ranking. Because other apps' features and prices change often, we make no claims about them; instead we give you a list so you can check each point yourself. We have also set out clearly below what Haftra does and does not do.
1. Dose day and reminders
The most common problem with weekly injections is forgetting which day the dose was taken. What to look for:
- Can you enter the interval your prescriber set (7 days, 14 days or something else)?
- Can you record the dose-increase (titration) stages?
- Do reminders work on your phone without an internet connection?
2. Injection site rotation
Product instructions say to change the site with every injection. An app that remembers the last site you used and shows the next one makes this easier. Being able to track the left and right sides of the abdomen, thighs and upper arms separately is useful.
3. Side effect and weight logging
Being able to record which dose day you had nausea, tiredness or appetite changes on gives you a concrete picture when you talk to your GP or prescriber. For weight, a chart showing the weekly trend is more meaningful than a single weigh-in.
4. A summary for your doctor's appointment
Rather than scrolling through your screen at an appointment, a PDF that shows your dose history, side effects and weight trend on one page makes things easier. This summary should not contain a diagnosis or a dose recommendation; it should only organise your own records.
5. Privacy: where does the data go?
Your health data is sensitive. Look for answers to these questions in the app's privacy policy:
- Can you use it without creating an account?
- If you create an account, which country is the server holding your data in?
- Which data goes to which third-party services (advertising measurement, AI, analytics)?
- Can you delete your account and your data from within the app?
A policy that lists service providers one by one is more trustworthy than general statements such as "we collect no data".
6. Language, currency and price
Reading symptom and medicine names in your own language makes keeping records easier. Being able to enter the pack price in your own currency and see the cost per dose helps you plan your budget. Before you buy, check what is included in the free version and when the subscription renews.
Where does Haftra stand on this list?
We describe our own app against the same list:
- Doses and reminders: Dose interval from 1 to 90 days, titration and maintenance stages, and a calendar of your next 4 doses. Reminders are scheduled on your phone. Free.
- Rotation: A 6-site map that remembers the last site you used. Free.
- Side effects and weight: One-tap symptom logging and a weekly weight trend. Free.
- Doctor summary (PDF): With Haftra+. The PDF is created on your phone.
- Estimated medication level curve: With Haftra+. It is a model based on half-life, not a blood measurement.
- Privacy: If you use it without an account, your records stay only on your phone. If you create an account, a backup is held on our server in the European Union (Supabase). For the meal photo estimate that you start yourself (Haftra+), a reduced-size copy of the photo is sent to Google Gemini and is not stored. If you downloaded the app from a Meta advert, only the fact that an install took place is reported to Meta, in aggregate. Details are in the privacy policy.
- Language and price: Turkish, English, German, Spanish, French and Arabic. You can enter the pack price in your own currency and see the cost per dose. Haftra+ is £5.99 a month, £39.99 a year (with a 7-day free trial on the App Store) or £79.99 as a one-off lifetime purchase.
- Platform: iPhone, iPad and Apple Watch. The Android version is currently in closed testing (coming soon).
Haftra is not a medical device; it does not make diagnoses or suggest doses. Only change your dose on the advice of your GP or prescriber.
Frequently asked questions
What is the most important thing to look for in a weight-loss injection tracker app?
It depends on your own needs, but for most users dose-day reminders, injection site rotation and a privacy policy that states clearly where the data goes stand out.
Is Haftra free?
Basic tracking is free: dose logging, reminders, the 6-site rotation map, and the weight and side effect diary. Analysis such as the doctor PDF summary and the estimated medication level curve comes with Haftra+.
Why might a GLP-1 tracker app be useful?
Keeping weekly doses, site changes and side effects in one place reduces forgetfulness and gives you a concrete record when you talk to your GP or prescriber. The app does not make treatment decisions; those belong to your prescriber.
What is injection site rotation?
It means giving each injection in a different spot on the abdomen, thigh or upper arm from the previous one. Product instructions recommend this; a tracker app makes it easier by remembering the last site you used.
