The Fast 800 vs Colourstart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
The Fast 800
This program offers science-based methods for weight loss and improved health through intermittent fasting and Mediterranean-style eating. It provides personalized plans, delicious recipes, guided workouts, and community support to help users achieve their health goals sustainably.
- Personalized meal plans
- Intermittent fasting guidance
- Mediterranean diet recipes
- Guided workouts
- Mindfulness and meditation
- Community support
Read full descriptionHide full description
Developed by Dr Michael Mosley and independently validated by healthcare advisors, over 180,000 members have found success with our easy-to-stick-to programme. With its personalised plans using science-based methods, The Fast 800 has helped thousands achieve their goals with intermittent fasting and the highly acclaimed Mediterranean-style diet. Our Programme is the easiest, most convenient way to learn how to improve your health, with the tools to help you do it and real, delicious recipes to ensure you enjoy it. The Fast 800 is absolutely all you need to keep yourself accountable and start improving your health in a sustainable, delicious way. Via the app, you have access to: - 18 healthy, nutritionally balanced meal plans - Options for keto, vegetarian and 5:2 - A library of 1,000+ delicious recipes - Daily guided workouts - Low-impact to advanced exercise - Resistance and HIIT training guides - Pilates, yoga and stretching library - Mindfulness guides and audio meditations - Health Coach and Community support While many people join The Fast 800 to lose weight, and lose more than 6kg in 12 weeks on average, the goal of the programme is actually to improve your health. As it so happens, weight loss is a consequence of that. Over the years, members have seen significant improvements to their health, from reversing type 2 diabetes, to improving blood pressure and reducing the amount of medication they take. Finding better health shouldn't leave you feeling tired and hungry. Start your personalised programme and finally find what works for you. Join today and have your meal plan and shopping list in minutes! Consult your healthcare professional before beginning any diet or fitness regime. Any advice given is general in nature and not meant as a substitute for care by your usual health professional. For any further questions, please email us at info@thefast800.com Frequently asked questions: https://thefast800.com/frequently-asked-questions/ Privacy policy: https://thefast800.com/privacy-policy/ Terms and conditions: https://thefast800.com/programme-terms-conditions/ Medical disclaimer: https://thefast800.com/medical-disclaimer/ Membership subscriptions are available for 1, 3 and 12 months.
Colourstart
This app guides users through a series of questions to determine suitability for a specific hair color product. It also allows users to store test results and photos for sharing with beauty professionals.
- Suitability assessment via questions
- Hair color avoidance guidance
- Test result storage
- Photo capture for results
- Shareable with hair professionals
Read full descriptionHide full description
By carefully answering a simple set of questions, Colourstart Passport can help you decide if Colourstart is suitable for you to use. Your answers may also help you make an informed decision on whether you should avoid hair colour. Colourstart Passport stores the answers to your questions and also any pictures you have taken of your test result. This can be helpful to share with your hairdresser, beauty therapist or barber for future reference to avoid potentially unnecessary retesting. Colourstart Passport can be shared with any participating hair professional.
Screenshots
Verdict
The clearest difference is in-app purchases: Colourstart at none against The Fast 800's 3. Colourstart also leads on review sentiment (100% vs 68%) and update cadence (weekly vs every 6 weeks). On price, ads 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. The Fast 800 sells 3 in-app purchases, starting at $39.99 per month. Colourstart asks for nothing beyond the download.
The Fast 800 ships an update every 6 weeks, Colourstart weekly. Both last shipped on November 3, 2026.
| Parameter | The Fast 800 | Colourstart |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (34 ratings) — better | — |
| Positive reviews | 67.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 34 — better | — |
| Update frequency | Every 6 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 52 MB | 12 MB |
| Age rating | 12+ | 17+ |
| Developer | The Fast 800 | Trichocare Diagnostics Ltd |
Customer experience
The Fast 800
Colourstart
Bugs and requests
The Fast 800
Reported bugs
4 issues- Login screen freezes
- App crashes frequently
- Logging out and unable to log back in
- Compatibility issues with older devices
Requested features
4 requests- Add ability to add own meals
- Improve recipe search functionality
- Add option to exclude certain foods
- Improve meal planning and shopping list features
Colourstart
Not enough reviews yet to summarise bugs or requests.
In-app purchases
The Fast 800
- Monthly7 Days trial$39.991 Month
- 3 Months7 Days trial$99.993 Months
- Yearly7 Days trial$200.001 Year
Colourstart
No in-app purchases
Questions
Is The Fast 800 free?
Is Colourstart free?
Do The Fast 800 or Colourstart have ads?
Which is updated more often, The Fast 800 or Colourstart?
Other comparisons















