The SIX vs 3407
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?
3407
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Train with Sara Sigmundsdóttir using The 3407 Method! The 3407 Method gives you direct access to Sara's training, nutrition, mindset and mobility system - the same approach she uses every day. Inside, you get Sara's full program, depending on your goal you choose which program suits you best. From overall strength, body building to only cardio pieces. - You will feel stronger and move better - Your confidence will grow in and out of the gym - Your habits around food, sleep and recovery will shift - You will stop guessing and start progressing
Screenshots
Verdict
The clearest difference is device support: The SIX at 3 against 3407's 1. On price, update cadence, 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.
The SIX ships an update weekly, 3407 every 2 weeks. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.
| Parameter | The SIX | 3407 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 16.2 |
| Further details — not scored | ||
| Size | 97 MB | 201 MB |
| Age rating | 17+ | 4+ |
| Developer | Archon Combine Limited | Elite performance ehf |
In-app purchases
The SIX
No in-app purchases
3407
No in-app purchases









