# Retain: GLP-1 Muscle & Protein — Protein Tracker & Strength Log

> Protein Tracker & Strength Log (iPhone/iPad app by Mitaanshu Agarwal.)

- Source: https://appshunter.io/ios/app/retain-glp-1-muscle-and-protein/id6776354574 (this page in markdown: same URL + `.md`)
- Developer: [Mitaanshu Agarwal](https://appshunter.io/developer/1896724075)
- Category: Health & Fitness
- Price: Free with in-app purchases
- Age rating: 12+
- Requires: iOS 18.0 · 6 MB
- Languages: American English
- Released: 2026-06-22
- Data updated: 2026-10-31

## What is Retain?

Retain is a protein and strength notebook for people taking a GLP-1 medicine. Log your meals, lifts, weigh-ins, lean-mass entries, side effects and the medication history you enter, and Retain counts each week for you: how many days you reached your protein floor, and how many times you lifted. It describes your own logs. It never measures muscle, grades your body or tells you what to take.

TODAY: A DIAL FOR YOUR PROTEIN FLOOR
Set your own goal in grams per kilogram and Retain works out the grams a day. The dial counts down what's left, the "Log protein" button takes a number in two taps, and the meals you eat most sit underneath as one-tap chips. On a low-appetite day, that's the whole job.

MUSCLE SIGNALS
Three counts from your entries: days at your floor this week, lifting sessions against the weekly target you chose, and the change in your lean-mass entries next to the change in your weigh-ins over the same dates. Nothing is estimated.

LOG FOOD YOUR WAY
• Type a meal, or just the grams of protein.
• Read a nutrition label on your device.
• Scan a barcode; only the digits are used for an optional product lookup.
• Say "Log protein in Retain" to Siri, or add it to Shortcuts or the Action button.

STRENGTH, WEIGHT AND LEAN MASS
Log working sets and follow the estimated one-rep max for each lift, set only against your own earlier sessions. Weigh-ins show a trend with a noise band, so one salty morning doesn't read as a setback.

ONE PAGE FOR YOUR APPOINTMENT
Retain Pro builds a one-page PDF from the last 30, 60 or 90 days: protein days, meals, weigh-ins, lean-mass entries, lifts, side effects and dose dates, plus up to six questions you want to ask. It's made on your iPhone and goes only where you send it.

YOUR MEDICATION HISTORY
Record the medication, dates, status, injection site and side effects you choose. Retain shows your history only. It never recommends a dose, a time or a next site. Learn cards open plain-language pages on glp1base.com about the medicine you logged.

PRIVATE BY DEFAULT
Your logs stay on your iPhone. App Lock, a private app-switcher cover, and export or import of a complete archive are built in. No account is needed unless you want cloud photo scanning.

RETAIN PRO, ONCE OR BY PLAN
Lifetime is a single purchase that unlocks every Pro feature that runs on your iPhone: the appointment summary, twelve weeks of muscle signals, the timeline, lean mass beside weight, the plateau page, the come-off habit checklist and floor check-ins. It never renews.
Monthly and yearly plans include all of that plus cloud plate-photo scanning, which returns editable calorie and macro ranges with a confidence level (up to 10 scans a day). The App Store shows your local price and any trial before you buy. Restore purchases any time.

Retain is independent and is not affiliated with or endorsed by any drug manufacturer.

Retain is a tracking and education tool, not a medical device. It does not provide medical advice, diagnosis, dosing or treatment. Always follow your prescriber's instructions, and talk with a qualified clinician before changing medication, nutrition, supplements or exercise.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://retain.keenshift.ai/privacy
Support: https://retain.keenshift.ai/support

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Retain Pro Monthly | $9.99 | per month |
| Retain Pro Yearly | $59.99 | per year |
| Pro Monthly | $9.99 | per month |
| Pro Yearly | $59.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Retain Pro Lifetime | $19.99 | one-time |


## Is Retain safe?

Not enough ratings yet to assess Retain.

## Is Retain legit?

Retain: GLP-1 Muscle & Protein appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Retain is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 2.4.0 — 2026-10-02

Retain 2.4 is a new notebook for the same logs.

• Today opens on a dial: the grams left to the protein floor you set, with Log protein and your usual meals one tap away.
• Muscle signals: days at your floor this week, lifting sessions against your weekly target, and lean mass beside weight once you have both.
• Say "Log protein in Retain" to Siri, or put it on the Action button.
• One-page appointment summary: protein days, meals, weigh-ins, lifts, side effects, dose dates and your questions, as a PDF.
• Learn cards for the medicine you logged, from glp1base.com.
• Night mode. Retain follows your iPhone, or pick Paper or Night in More.
• Retain Pro can now be bought once, as Lifetime. Plans are unchanged and still include photo scanning.

Your logs, protein goal and weight units carried over unchanged.

### 2.3.0 — 2026-07-28

Small, honest fixes to the Retain Pro screen:

• If subscription plans can't be loaded, Retain now tells you what actually happened instead of blaming your connection.
• "Try again" visibly checks with the App Store and reports back — including when plans are still unavailable.
• After a retry succeeds, your plan is preselected so subscribing stays one tap.
• The sample-data tour no longer surfaces raw App Store errors.

### 2.2.0 — 2026-07-23

This update is about trying before paying, and about privacy on shared screens:

• Try the plate-photo scanner free: signed-in users get 3 sample scans — the same honest, editable ranges Pro uses, no payment first.
• New App Lock: require Face ID, Touch ID, or your passcode to open Retain.
• A privacy cover now hides your data in the app switcher, and lock-screen reminders no longer mention medication at all.
• If you start a free trial, Retain sends a heads-up about two days before it converts — a renewal never surprises you. Trial wording now only appears when a trial actually applies to you.
• The daily photo-scan fair-use limit is stated plainly on the Pro screen.
• Share a no-shame progress card from Trends — your protein streak and effort, never your weight or medication.
• New optional daily protein-floor check-in and a Sunday weekly recap — invitations, never guilt trips.
• Doctor-visit reports now include a small provenance footer.

### 2.1.0 — 2026-07-14

Retain is now clearer about what it records, what it estimates, and what stays under your control:

• Confirm a recent or favourite meal and log it again in one tap, with Edit first and Undo.
• Manual meal entry, on-device nutrition-label reading, and barcode lookup are clearly separated from Pro plate-photo estimates.
• Plate-photo results use editable calorie and macro ranges with confidence—not fake precision.
• Strength, lean-mass, and weight trends are easier to review together.
• Dose and injection-site history is record-only; Retain does not suggest a next site or any treatment decision.
• Progress photos use a neutral date-based timeline.
• Export and import now include live records and progress photos in a versioned archive that is clearly identified as sensitive; demo and deleted records stay excluded.
• Account deletion remains available inside the app.

Retain remains a tracking and education tool, never a source of dosing or treatment advice.

### 2.0.0 — 2026-07-08

What's new in 2.0 — a big, free upgrade:

• Photo food logging — snap a meal and get honest calorie and macro ranges (Pro), with one-tap corrections that learn from you.
• Protein floor — set a daily protein floor from a cited guideline range to help protect muscle; celebrated when you hit it, never shamed when you don't.
• Injection-site body map with rotation history and a next-site suggestion (free).
• One timeline for your shots, food, weight, and side effects — log 18 common symptom types and see them next to your shots.
• Plateau and come-off support for the moments that matter most.
• Honest weigh-in trend with a noise band, plus Apple Health weight sync.

Everything you already use stays free, and your data hasn't moved. As always: tracking and education only — never dosing advice.

## Apps similar to Retain

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Strongly: GLP-1 Fitness](https://appshunter.io/ios/app/strongly-glp-1-fitness/id6777299441) | 5.0 (4) | Free | Health & Fitness |
| [Biobeat BPM](https://appshunter.io/ios/app/biobeat-bpm/id1579222991) | — | Free | Health & Fitness |
| [IsaLife](https://appshunter.io/ios/app/isalife/id1286587779) | 3.0 (415) | Free | Health & Fitness |
| [Fitny - Stretching & Fitness](https://appshunter.io/ios/app/fitny-stretching-and-fitness/id6474268576) | 4.7 (2,486) | Free | Health & Fitness |
| [January: AI Health Tracker](https://appshunter.io/ios/app/january-ai-health-tracker/id6470235391) | 4.5 (1,189) | Free | Health & Fitness |
| [Fit with Coco](https://appshunter.io/ios/app/fit-with-coco/id6471598754) | 4.6 (169) | Free | Health & Fitness |

## More apps by Mitaanshu Agarwal

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- [Sukta](https://appshunter.io/ios/app/sukta/id6770299755)
- [Joy by Morning](https://appshunter.io/ios/app/joy-by-morning/id6770300427)
- [Falah: Salah Tracker & Adhan](https://appshunter.io/ios/app/falah-salah-tracker-and-adhan/id6770318208)
- [Berean: Bible Study Sources](https://appshunter.io/ios/app/berean-bible-study-sources/id6770318820)
- [MealLuma: AI Calorie Scanner](https://appshunter.io/ios/app/mealluma-ai-calorie-scanner/id6771332217)

All apps by Mitaanshu Agarwal: https://appshunter.io/developer/1896724075

## Related topics

[glp-1 muscle](https://appshunter.io/ios/topics/glp-1-muscle)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-31.*