PR Member vs Calibrex
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PR Member
Manage your account, book classes, and stay connected with the organization. Easily message staff, view announcements, and access shared content. A convenient way to interact with the community and stay informed.
- Account management
- Class and event booking
- Direct messaging
- Public feed for announcements
- Content sharing
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The PR Member app makes it very easy for you to manage your PR Member account, book into our classes and events and keep in touch with us. You can easily message us if you have a question or want to share something with us. You can also follow our public feed to see any announcements we make, promos we run, or content we share.
Calibrex
This wearable device precisely tracks your weightlifting reps, rest, and movements. It provides personalized insights into your training, offering live audio coaching and tailored workouts to help you achieve your strength, speed, or endurance goals.
- Precise rep, rest, and movement tracking
- Live audio coaching tailored to goals
- Personalized insights into training performance
- Advanced tracking and tailored workouts
- Set Score, Difficulty Score, Speed Score, Tempo Score
- Discover training trends and program balance
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Meet Calibrex — the wearable built for lifting. Calibrex is a tiny magnetic wearable that captures every rep, rest, and movement with unmatched precision — giving you deep, personalized insight into your training, and live audio coaching. Whether you're chasing strength, speed, or endurance, Calibrex adapts to your goals and pushes you further with intelligent feedback, advanced tracking, and tailored workouts that grow with you. Get coached through every set with live audio feedback — tailored to your goals, training style, and performance history. Set Score – How well you executed each rep and how intensely you pushed. Difficulty Score – How close you came to muscle failure. Speed Score – How closely your rep speed matched your target training zone. Tempo Score – How much time your muscles spent under tension. Discover powerful trends across your training — like increasing bench press volume, longer rest times, or missed muscle groups. Get a clearer picture of how balanced your program is across your entire body. 25M Reps & Counting. 1500 + professional weightlifters, coaches, university programs, and fitness enthusiasts across more than 15 countries.
Screenshots
Verdict
The clearest difference is rating: PR Member at 5.0 against Calibrex's 3.7. Calibrex's advantage is update cadence (fortnightly vs every 3 months). On price, ratings volume, ads 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
PR Member holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 8 and 11 respectively.
PR Member ships an update every 3 months, Calibrex fortnightly. The most recent releases landed on September 18, 2026 and September 14, 2026 respectively.
| Parameter | PR Member | Calibrex |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (8 ratings) — better | 3.7 (11 ratings) |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | 8 | 11 — better |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 55 MB | 150 MB |
| Age rating | 4+ | 12+ |
| Developer | Momence, Inc. | CALIBREX INC. |
Customer experience
PR Member
Calibrex
In-app purchases
PR Member
No in-app purchases
Calibrex
No in-app purchases
