Comparison

Agonist vs fin fitnesstracker

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

Head to head
About

Agonist

This app helps users manage their peptide and GLP-1 routines by tracking doses, vials, and injection sites. It also integrates nutrition, training, and Apple Health data to provide a readiness score and long-term trends.

Highlights
  • Custom peptide and GLP-1 protocol creation
  • Dose logging with vial and site tracking
  • Vial inventory management
  • Injection site history
  • Nutrition and hydration tracking
  • Apple Health integration
  • Daily readiness score calculation
Features
Read full description

Track peptide and GLP-1 doses, reminders, vial supply, and injection-site history in one place. Agonist helps you keep records of the routine you already follow. See what is due, record what you took, and look back at your history without searching through notes and spreadsheets. Logging one compound is free. Optional Premium upgrades are available. Requires iOS 18 or later. DOSE LOGS & REMINDERS Create a schedule, set optional reminders, and record completed doses with the date, time, vial, and injection site used. Review past entries to see what you logged and when. VIAL INVENTORY Keep vial label details, expiration information, and remaining amount together. The remaining amount in mg updates when you log a linked dose, and you can adjust it with "Update what's left". INJECTION SITE HISTORY Record the site used for each dose and review recent sites in your history. YOUR ROUTINE IN CONTEXT Record food, hydration, workouts, and progress alongside your protocol. Connect the Apple Health data you choose, including sleep, HRV, resting heart rate, and weight. PRIVATE BY DESIGN Protocol records sync securely to your account. Nutrition, workouts, and Apple Health data stay on your device. Agonist shows no ads and never sells your personal data. You can delete your account from inside the app. Agonist is a personal tracking and educational reference tool. It does not provide medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional before making medical decisions. Support: support@agonist.app Privacy: https://agonist.app/legal/privacy Terms: https://agonist.app/legal/terms

About

fin fitnesstracker

Track your strength training progress with detailed logging of sets, reps, and weights. Monitor your performance over time and integrate data from Apple Health for a comprehensive view of your readiness and progress. Share workouts or keep them private.

Highlights
  • Detailed workout logging
  • Progress visualization
  • Apple Health integration
  • Customizable for different sports
  • Workout sharing options
  • Streak protection for rest days
Features
Read full description

Logging your strength training is free in fin. No time limit, no trial that runs out. Been training for months and not sure whether it's actually going anywhere? fin records every set, every weight and every rep — and shows you in plain numbers where you stand. FREE, FOR GOOD Log sets, reps and weights. The full exercise catalogue with 222 movements. Up to three training plans. Apple Watch, Lock Screen control and everything with friends. YOUR LAST SET, ALWAYS IN VIEW While you train, your previous value sits right next to the current one. No thinking between sets — just a number to beat. FROM THE LOCK SCREEN Add weight, tick off a set, start the rest timer — without opening the app. Works on Apple Watch too, even without your iPhone nearby. WITH FRIENDS OR ON YOUR OWN Share sessions with people who follow you — or keep everything private. You decide for each one. REST DAYS DON'T BREAK YOUR STREAK Marking a day as rest or sick keeps your streak intact. Training should help you, not punish you. WARM-UP SETS AND DROPSETS Hold a set to mark it as a warm-up. It shows an A instead of a number and stays out of the count. — WITH FIN PRO FIN SKILL Set a goal for strength, calisthenics or endurance. fin plans the path week by week, replans when something hurts and calls out your target pace on runs. Uses AI only if you agree. WHAT'S IN YOU TODAY fin reads sleep, heart rate and resting heart rate from Apple Health and shows your training readiness each morning. Measured against your own baseline, not some population average. PROGRESS IN NUMBERS Weight per exercise across weeks and months. Total volume, personal records, bodyweight trend. You log, fin does the rest. HYROX, STRENGTH ENDURANCE AND CARDIO Hyrox with the official competition weights by division. Cardio with running, rowing, Ski Erg, elliptical and stair climber — each with the right units. AND Widgets for Home Screen, Lock Screen and StandBy. Garmin sync. Your full history beyond 30 days. Nothing is ever deleted. Unlock later and everything is still there. — SUBSCRIPTION fin (1 month) – €7.99 fin (annual) – €49.99 The first 30 days are free. After that the subscription renews automatically unless cancelled at least 24 hours before the period ends. Payment is charged to your Apple Account. You can cancel any time in your Apple Account settings. Terms of Use: https://fin-tracker.de/terms.html Privacy Policy: https://fin-tracker.de/privacy.html

Screenshots

Agonist4 screens
fin fitnesstracker4 screens

Verdict

The call

The clearest difference is monetization model: Agonist at free against fin fitnesstracker's subscription. fin fitnesstracker's advantage is ads (none vs shown) and device support (3 vs 1). On price, update cadence and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Agonist sells 2 in-app purchases, starting at $6.99 per month and fin fitnesstracker sells 4 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Agonist versus fin fitnesstracker: the parameters behind the verdict, then further details
ParameterAgonistfin fitnesstracker
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews—97.1% of reviews
Number of ratings3 — better—
Update frequencyEvery 3 daysEvery 3 days
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree — betterSubscription
DevicesiPhoneiPhone, iPod, Apple Watch — better
Requires iOS18.015.0 — better
Further details — not scored
Size47 MB83 MB
Age rating17+4+
DeveloperEdward ValdezTim Bodon

Customer experience

Agonist

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

fin fitnesstracker

Written reviews35 reviews
Positive97.1%
Neutral2.9%
Negative0.0%

In-app purchases

2 purchases

Agonist

Subscriptions2
  • Agonist Premium (Monthly)$6.991 Month
  • Agonist Premium (Yearly)7 Days trial$39.991 Year
4 purchases

fin fitnesstracker

Subscriptions3
  • fin (1 Monat)1 Month trial$6.991 Month
  • fin (3 Monate)1 Month trial$8.993 Months
  • fin (Jahresabo)1 Month trial$44.991 Year
One-time1
  • fin$99.99

Questions

Is Agonist free?
Agonist is free to download, with in-app purchases available.
Is fin fitnesstracker free?
fin fitnesstracker is free to download, with in-app purchases available.
Do Agonist or fin fitnesstracker have ads?
Agonist shows ads; fin fitnesstracker does not.
Which is updated more often, Agonist or fin fitnesstracker?
Agonist ships an update every 3 days, and fin fitnesstracker every 3 days. Most recently, Agonist was updated on October 29, 2026 and fin fitnesstracker on October 31, 2026.

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