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The short version
MeAgain’s App Store listing describes a GLP-1 tracker for shots and pills that brings food, protein, fiber, water, side effects, weight, and progress photos together.1 Kairo focuses on doses and protocols: built-in half-life data for 60+ compounds, peptides included, a reconstitution calculator, stacks and cycles, and labs. If food logging is central for you, MeAgain is built for it. If you run more than one compound or track peptides, Kairo is built for that.
Side by side
| As of October 3, 2026 | Kairo | MeAgain |
|---|---|---|
| Platforms | iPhone (iOS 18 or later) | iPhone (iOS 16.4 or later)1 and Android2 |
| Built around | Doses and protocols for GLP-1s, peptides, and hormone protocols | GLP-1 shots and pills, plus food, protein, fiber, and water1 |
| Dose reminders | Free for your main medication plus two more compounds | Shot and pill reminders1 |
| Medication levels | Estimated curve from published half-life data for 60+ compounds; free for your first 14 days, then your current dose cycle | “medication-level context between doses”1 |
| Food logging | Not tracked | Photo, barcode, and search1 |
| Apple Health | Pro | Syncs movement and health data1 |
| Paid plan, U.S. App Store | Kairo Pro: $29.99/year or $5.99/month | “Some features require a subscription”; in-app purchases listed from $14.99 to $119.991 |
Features and prices change. Check each app’s current listing before you decide.
Where Kairo is different
Peptides and multi-compound protocols
Kairo ships with published half-life data for 60+ compounds, so most GLP-1s, peptides, and hormone protocols get an estimated curve without values to enter. Stacks run side by side on one calendar, with schedules like 5 days on and 2 off and planned off days.
A reconstitution calculator
Free arithmetic on the numbers you enter, with a visual syringe. It calculates; it doesn’t suggest a dose.
Labs and a sourced library
Log lab markers over time, and read 104 compound guides that cite their sources and label human, animal, and lab evidence separately.
No account
Kairo works without an account, and your tracking records stay on your iPhone. Optional AI features, part of Pro, send only what you choose, after you consent.
Where MeAgain may suit you better
- Food is central to your routine. MeAgain logs meals by photo, barcode, or search and tracks protein and fiber.1 Kairo doesn’t log food.
- You like visual progress. Its listing describes progress photos, Journey Cards, and widgets featuring its Capy character.1
- You use Android, or an older iPhone. MeAgain is on Google Play2 and supports iOS 16.4 or later; Kairo needs iOS 18.
Moving to Kairo
Kairo imports CSV files from other trackers and spreadsheets. You review the columns before saving, original dates are kept, and you can undo the import. Importing is free. See the CSV import guide.
Sources
- MeAgain: GLP-1 Tracker App on the U.S. App Store: description, compatibility, and in-app purchases. Checked October 3, 2026.
- MeAgain: GLP-1 Tracker App on Google Play. Checked October 3, 2026.
- Kairo features and prices: Kairo Free vs Pro and Kairo on the App Store.
MeAgain is a trademark of its owner. Kairo and Opportune Labs are not affiliated with, endorsed by, or sponsored by MeAgain. This comparison uses MeAgain’s public store listings; corrections are welcome at support@opportunelabs.app.
Educational information, not medical advice. If something feels urgent or wrong, contact your clinician or emergency services.