GLP vs Cathier
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
GLP
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Track your GLP-1 journey โ Mounjaro, Zepbound, Ozempic, Wegovy, Saxenda, Trulicity, and more โ without turning your health data into another account. GLP-1 Logbook is a private injection tracker built around the weekly GLP-1 routine. It helps you remember every shot, rotate injection sites on a body map, follow dose changes, see estimated medication levels between shots, and watch your weight loss progress โ in one calm app that keeps your health records on your device. ALL YOUR GLP-1 MEDICATIONS โข Tirzepatide โ Mounjaro, Zepbound, or generic โข Semaglutide โ Ozempic, Wegovy, or generic โข Liraglutide โ Saxenda, Victoza โข Dulaglutide โ Trulicity โข Retatrutide and custom medication names INJECTION TRACKING โข Set your weekly injection day and shot reminders โข Log each shot in seconds with dose, date, and injection site โข Pick the site on a body map and rotate sites automatically โข Track dose changes and titration over time ESTIMATED MEDICATION LEVELS โข See an estimated level curve between shots, based on published pharmacokinetic models โข Personalized with your body weight โข Watch levels build up as your dose changes over the weeks WEIGHT LOSS & BMI PROGRESS โข Log weight in kg or lbs โข See BMI calculated from your height โข Set a goal weight and track progress toward it โข View trends by week, month, 6 months, or all time โ with injection-day markers PRIVATE BY DESIGN โข No account required โข Health records stay on your device โข No developer-run cloud sync for your health records โข Export or import a standard ZIP backup anytime for your records or doctor visits BUILT FOR THE WEEKLY GLP-1 ROUTINE Shot reminders, site rotation, estimated levels, weight logging, BMI, and clear charts โ for every GLP-1 medication. GLP-1 Logbook keeps tracking simple so you can check in quickly and get back to your day. GLP-1 Logbook is for tracking and personal organization only. It does not provide medical advice, diagnosis, or treatment guidance, and estimated medication levels are illustrative estimates, not measurements. Always follow your healthcare provider's instructions for your GLP-1 treatment.
Cathier
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Verdict
The clearest difference is in-app purchases: Cathier at none against GLP's 1. Cathier also leads on ads (none vs shown). GLP's advantage is update cadence (every 9 days vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. GLP sells 1 one-off in-app purchase. Cathier asks for nothing beyond the download.
GLP ships an update every 9 days, Cathier every 3 weeks. The most recent releases landed on October 14, 2026 and October 10, 2026 respectively.
| Parameter | GLP | Cathier |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days โ better | Every 3 weeks |
| Ads | Yes | No โ better |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.6 | 18.6 |
| Further details โ not scored | ||
| Size | 33 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | NEURAL CRAFT LIMITED | Jian Shuo Wang |
In-app purchases
GLP
- Remove Ads$3.99
Cathier
No in-app purchases









