Castle coaching vs Fast
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Castle coaching
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Online mindset and body transformation coaching services In this app: - Messaging - View Plans - Check-Ins - Daily Habits - Log Workouts Terms of use: https://kahunas.io/terms-conditions Privacy policy: https://kahunas.io/privacy
Fast
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Welcome to the Fast-Track Fitness Premium Online Coaching App! This App has been designed specifically for the VIP members of Fast-Track to offer the most comprehensive coaching service to optimise your results and guide you on your transformative journey From our custom training technique videos where we break down each and every movement in the gym, to the nutritional library with over 900,000 verified food entries, to your weekly check-ins and our educational video library, this platform truly does offer it all Welcome aboard, we are delighted to have you on the team! * App access requires paid coaching plan Terms of use: https://kahunas.io/terms-conditions Privacy policy: https://kahunas.io/privacy
Screenshots
Verdict
Castle coaching and Fast are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Castle coaching sells 1 in-app purchase, starting at $150.00 per month and Fast sells 1 in-app purchase, starting at $299.99 per month. Whichever you choose, the download price is not the number that matters.
Castle coaching ships an update every 5 weeks, Fast monthly. The most recent releases landed on May 19, 2026 and September 17, 2026 respectively.
| Parameter | Castle coaching | Fast |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 52 MB | 46 MB |
| Age rating | 17+ | 17+ |
| Developer | Darren Castle | FAST-TRACK FITNESS AUSTRALIA PTY LTD |
In-app purchases
Castle coaching
- Online coaching services$150.001 Month
Fast
- Monthly Coaching$299.991 Month
