The SIX vs Aretas Performance
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
The SIX
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The SIX is the new way to rate your fitness. Built in collaboration with Gymshark, The SIX gives you a single performance rating across key pillars of fitness so you can finally show how good you really are in the gym. No guessing. No ego. No noise. Just your data, your effort, your proof. What you can do inside The SIX: * Complete structured fitness tests that cover strength, power, speed, capacity, endurance, and conditioning * Get your personal SIX rating based on your results * Track your progress over time as your rating increases * Create head to head comparisons with friends to see who wins, loses, or ties across each of The SIX * Record in-app video of your attempts so others can watch your lifts and efforts * Learn correct technique from Gymshark Lifting Club coaches with built-in movement guides and videos * Share achievement stickers and rating cards straight to Instagram and other social channels for social proof * Build social currency around your effort, not just your appearance * Compete on leaderboards and see where you stand The SIX creates a democratised rating for fitness. It gives every lifter and gym goer one clear number that reflects real performance, not opinion. Your training already matters. Now it counts. What is your SIX?
Aretas Performance
This app helps you manage your health and fitness journey by allowing you to book classes, connect with club staff and members, and access club news. It also features a recipe library and integrates with Apple Health to track your progress.
- Book classes online
- Contact club staff
- Connect with members
- View club news and events
- Recipe library
- Apple Health integration
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Guiding you through your health and fitness journey! - Book classes online in just a few clicks - Contact club staff directly - Interact and get to know your fellow members - See all the latest club news, offers and events - Recipes Library Apple Health App Integration Track your progress with our HealthKit app integration to import and measure your daily steps, distance or calories burnt. Also use HealthKit to import your data from a range of different wearable devices.
Screenshots
Verdict
The clearest difference is update cadence: The SIX at weekly against Aretas Performance's every 6 months. 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
The SIX ships an update weekly, Aretas Performance every 6 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | The SIX | Aretas Performance |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (5 ratings) — better |
| Number of ratings | — | 5 — better |
| Update frequency | Weekly — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 14.0 — better |
| Further details — not scored | ||
| Size | 97 MB | 56 MB |
| Age rating | 17+ | 4+ |
| Developer | Archon Combine Limited | TeamUp Sports |
In-app purchases
The SIX
No in-app purchases
Aretas Performance
No in-app purchases









