AbsolutelyThin vs GLP 1 Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AbsolutelyThin
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The new AbsolutelyThin app gives existing patients the ability to manage their account and submit monthly progress reports. It also contains tools and features to help track the progress of weight loss. Included is a Body Mass Index (BMI) Calculator and a Basal Metabolic Rate (BMR) Calculator. You can also track your weight loss by date and view graphs. A new Calorie Tracker feature has been added. You must be an existing Absolutely Thin patient to use the app. Many new account features and tools will be added in future releases.
GLP 1 Tracker
Manage your GLP-1 medication routine with this comprehensive app. Track injections, pills, progress, nutrition, and receive smart reminders to stay consistent and motivated on your weight loss journey.
- Supports all weight loss medications (injections/pills)
- Smart medication insights and injection site rotation
- Custom reminders for doses, weigh-ins, and meals
- Visual progress tracking with charts and photos
- Nutrition monitoring and AI food scanner
- All-in-one daily dashboard
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Pep GLP-1 Tracker puts your whole GLP-1 routine in one place: shots or pills, reminders, medication levels, weight, meals, and side effects. Built for Ozempic®, Wegovy®, Mounjaro®, Zepbound®, Foundayo™, compounded semaglutide, tirzepatide, retatrutide, and more. Whether it's your first dose or you're months in, Pep makes it easy to know what to take, when to take it, and how far you've come. SEE YOUR MEDICATION LEVEL Using published clinical data, Pep estimates how much medication is active in your body, rising as each dose absorbs and tapering at your medication's own pace. Tap the chart to see your level at any moment. Many people use it to understand why food noise, appetite, and side effects shift through the week. SNAP A PHOTO, LOG YOUR MEAL Point your camera at your plate and the AI food scanner estimates calories, protein, fiber, and fat in seconds. You can also search foods or scan a barcode. NEVER MISS A DOSE • One-tap logging for weekly shots and daily pills • Injection site rotation, so you always know where the next shot goes • Dose escalation tracking as your prescription steps up • Reminders that fit your schedule, plus a missed-dose guide for when life gets in the way TRACK SIDE EFFECTS Log nausea, constipation, fatigue, or anything custom, and rate how severe it is. See how symptoms line up with your doses on the calendar so you can spot patterns and talk them through with your provider. WATCH YOUR PROGRESS Track weight, body measurements, and progress photos with side-by-side comparisons and easy-to-read charts. Hit a milestone? Turn your stats and before & after photos into a Progress Card you can save or share. MAKE EVERY BITE COUNT When your appetite is smaller, what you eat matters more. Set daily goals for protein, fiber, calories, and water and see at a glance how close you are. YOUR DAY AT A GLANCE The Today screen shows what you've logged and what's next. The calendar puts doses, weight, meals, and symptoms side by side. BACKED UP, SYNCED, AND PRIVATE Sign in once and your entries and photos back up automatically. Get a new phone, sign in, and everything comes back. Progress photos are encrypted on your phone before they leave it, so only you can see them. We never sell your data. Pep syncs with Apple Health, and Pep Pro keeps every device you use in sync. STAY STRONG WITH PEP STRENGTH Short strength sessions planned around your shot day, in a free companion app. Finished sessions show up on your Today screen and calendar. BUILT FOR YOUR ROUTINE • Brand-name or compounded medications, shots or pills • Pounds, kilograms, or stones; inches or centimeters • Dark mode for late-night logging • iPhone and iPad WHY PEP Pep is built only for GLP-1s, so everything connects. See how your medication level lines up with your appetite, your side effects with your doses, and your meals with your protein goals. SUPPORTED MEDICATIONS • Weekly shots: Ozempic®, Wegovy®, Mounjaro®, Zepbound®, Trulicity® • Daily shots: Saxenda®, Victoza® • Pills: Foundayo™, Rybelsus®, Wegovy® pill • Compounded: semaglutide, tirzepatide, retatrutide • Generic names: semaglutide, tirzepatide, liraglutide, dulaglutide, orforglipron PEP PRO Pep Pro is an optional auto-renewing subscription. Payment is charged to your Apple Account at confirmation of purchase. Your subscription renews automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Privacy Policy & Terms of Use: https://pepglp1.com/privacy-policy-terms-of-use/ Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Pep is a tracking tool and does not provide medical advice. Medication levels are estimates for general information only. Always follow your prescriber's guidance. Pep is not affiliated with Novo Nordisk or Eli Lilly. All trademarks belong to their respective owners.
Screenshots
Verdict
The clearest difference is in-app purchases: AbsolutelyThin at none against GLP 1 Tracker's 11. GLP 1 Tracker's advantage is update cadence (fortnightly vs every 66 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. GLP 1 Tracker sells 11 in-app purchases, starting at $9.99 per month. AbsolutelyThin asks for nothing beyond the download.
AbsolutelyThin ships an update every 66 months, GLP 1 Tracker fortnightly. The most recent releases landed on September 13, 2026 and September 27, 2026 respectively.
| Parameter | AbsolutelyThin | GLP 1 Tracker |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (917 ratings) — better |
| Positive reviews | — | 75.9% of reviews |
| Number of ratings | — | 917 — better |
| Update frequency | Every 66 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 187 MB | 53 MB |
| Age rating | 17+ | 12+ |
| Developer | Absolutely Thin, LLC | Shred Apps, LLC |
Bugs and requests
AbsolutelyThin
Not enough reviews yet to summarise bugs or requests.
GLP 1 Tracker
Reported bugs
2 issues- Login screen freezes
- Profile data not persisting
Requested features
2 requests- Monthly subscription option
- Improved note-taking functionality
In-app purchases
AbsolutelyThin
No in-app purchases
GLP 1 Tracker
- Access All GLP-1 Tracking Tools7 Days trial$9.991 Month
- Access All GLP-1 Tracking Tools$9.991 Month
- Monthly Special Offer3 Days trial$9.991 Month
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- Access All GLP-1 Tracking Tools$19.991 Year
- Access All GLP-1 Tracking Tools3 Days trial$29.991 Year
- Access All GLP-1 Tracking Tools$29.991 Year
- Access All GLP-1 Tracking Tools3 Days trial$34.991 Year
- Access All GLP-1 Tracking Tools7 Days trial$39.991 Year
- Access All GLP-1 Tracking Tools1 Month trial$39.991 Year
- New Year's Special Offer1 Month trial$39.991 Year
- Access All GLP-1 Tracking Tools7 Days trial$59.991 Year








