Comparison

18 GYM vs Calibro

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

Head to head
About

18 GYM

Manage your gym activities, from checking class schedules and booking spots to renewing memberships and purchasing services. Track your membership details and stay updated on gym news.

Highlights
  • Class schedule viewing
  • In-app class booking
  • Online membership renewal
  • New membership sign-up
  • Service purchases
  • Account details tracking
Features
Read full description

Now you can manage your activity at our gyms a lot easier, using our app. - Class schedule - you can check our class schedule at any time - Bookings from the app - you can book your favorite classes straight from the app - Buy memberships online – you can renew your membership online, in just a few simple steps - Become a member – if you haven't tried the 18GYM experience yet, you can become a member in just a few minutes - Buy services - you can buy additional services online, on the spot - Details about your account - you can keep track of your membership, see how many days you have left, and its benefits - Useful info about our gyms - get updates about what's going on in our gyms Enjoy your workouts!

About

Calibro

Features
Read full description

Calisthenics that scales with you, from your first push-up to the muscle-up. Calibro is a bodyweight training tracker built for steady, measurable progress. Every exercise has its own progression ladder, and when you hit your target reps, Calibro moves you up to the next, harder version, so you're always working at the right difficulty. KEY FEATURES • Easy Start — Answer four quick questions about what you can do today (push-ups, pull-ups, squats, plank) and Calibro picks your starting level. No exercise names to know. • Smart Progressions — 17 core movements with up to 7 levels each, from your first variation through advanced. Hit your reps on every set and you level up. • Skill Paths — Structured progressions toward Handstand, L-Sit, Front Lever, and Muscle-Up. • Apple Watch Companion — Log sets and rest from your wrist. Workouts are saved to Apple Health, with the heart rate your Watch records. • Home Workout — One toggle swaps bar, ring and dip exercises for bodyweight-only alternatives. No bar, no problem. • Built-in Programs — Three full-body workouts (Frontline, Backbone, Crossover) rotate push, pull, and full-body movements with core in every session. • Private by Design — Your workout history stays on your iPhone. No account, no ads, no tracking. Sharing crash reports and usage data is optional and off unless you turn it on. Whether you're working on your first pull-up or grinding toward the muscle-up, Calibro scales with you.

Screenshots

18 GYM4 screens
Calibro4 screens

Verdict

The call

The clearest difference is update cadence: Calibro at weekly against 18 GYM's every 5 weeks. 18 GYM's advantage is iOS requirement (15.6 vs 18.0). On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

18 GYM ships an update every 5 weeks, Calibro weekly. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
18 GYM versus Calibro: the parameters behind the verdict, then further details
Parameter18 GYMCalibro
PriceFreeFree
Rating1.0 (2 ratings) — better—
Positive reviews22.2% of reviews—
Number of ratings2 — better—
Update frequencyEvery 5 weeksWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, Apple Watch
Requires iOS15.6 — better18.0
Further details — not scored
Size59 MB25 MB
Age rating4+4+
DeveloperUPFIT SRLDan-Florin Muresan

In-app purchases

None

18 GYM

No in-app purchases

None

Calibro

No in-app purchases

Questions

Is 18 GYM free?
18 GYM is free to download, with no in-app purchases.
Is Calibro free?
Calibro is free to download, with no in-app purchases.
Do 18 GYM or Calibro have ads?
Neither 18 GYM nor Calibro shows ads.
Which is updated more often, 18 GYM or Calibro?
18 GYM ships an update every 5 weeks, and Calibro weekly. Most recently, 18 GYM was updated on November 7, 2026 and Calibro on October 31, 2026.

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