Comparison

GLP vs Cathier

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

GLP

Features
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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 โ€ข Tirzepatide โ€” Mounjaro, Zepbound, or generic โ€ข Semaglutide โ€” Ozempic, Wegovy, or generic โ€ข Liraglutide โ€” Saxenda, Victoza โ€ข Dulaglutide โ€” Trulicity โ€ข Retatrutide and custom medication names INJECTION TRACKING โ€ข Set your weekly injection day and shot reminders โ€ข Log each shot in seconds with dose, date, and injection site โ€ข Pick the site on a body map and rotate sites automatically โ€ข Track dose changes and titration over time ESTIMATED MEDICATION LEVELS โ€ข See an estimated level curve between shots, based on published pharmacokinetic models โ€ข Personalized with your body weight โ€ข Watch levels build up as your dose changes over the weeks WEIGHT LOSS & BMI PROGRESS โ€ข Log weight in kg or lbs โ€ข See BMI calculated from your height โ€ข Set a goal weight and track progress toward it โ€ข View trends by week, month, 6 months, or all time โ€” with injection-day markers PRIVATE BY DESIGN โ€ข No account required โ€ข Health records stay on your device โ€ข No developer-run cloud sync for your health records โ€ข 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.

About

Cathier

Features
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Record your feeling

Screenshots

GLP4 screens
Cathier4 screens

Verdict

The call

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. GLP sells 1 one-off in-app purchase. Cathier asks for nothing beyond the download.

UpkeepUpdate frequency

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.

Scorecard3 real differences ยท 3 level
GLP versus Cathier: the parameters behind the verdict, then further details
ParameterGLPCathier
PriceFreeFree
Update frequencyEvery 9 days โ€” betterEvery 3 weeks
AdsYesNo โ€” better
In-app purchasesYesNo โ€” better
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.618.6
Further details โ€” not scored
Size33 MB8 MB
Age rating4+4+
DeveloperNEURAL CRAFT LIMITEDJian Shuo Wang

In-app purchases

1 purchases

GLP

One-time1
  • Remove Ads$3.99
None

Cathier

No in-app purchases

Questions

Is GLP free?
GLP is free to download, with in-app purchases available.
Is Cathier free?
Cathier is free to download, with no in-app purchases.
Do GLP or Cathier have ads?
GLP shows ads; Cathier does not.
Which is updated more often, GLP or Cathier?
GLP ships an update every 9 days, and Cathier every 3 weeks. Most recently, GLP was updated on October 14, 2026 and Cathier on October 10, 2026.

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