Shift Adapt vs Starrett System
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Shift Adapt
Log your workouts and track your performance from anywhere. Access daily breath practices to enhance your training experience. Expand your fitness journey with this comprehensive tool.
- Workout logging
- Performance tracking
- Daily breath practices
- Access training from anywhere
- Expand fitness experience
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Log into your SH//FT training from anywhere with the Shift Adapt app! Log your workouts, track your performance, and enjoy daily breath practices inside the app. Expand your experience! If you enjoy the Shift Adapt app we'd really appreciate your taking a second to leave a nice review to help us improve and get the word out. Thank you!
Starrett System
This comprehensive 90-day fitness, movement, and nutrition program helps you build a functional, durable, and resilient body for life. It includes expert-led training, mobility and recovery sessions, nutrition guidance, and habit tracking tools.
- 90-day progressive strength and interval training
- Mobility and recovery sessions
- Macro-based nutrition guidance
- Habit tracking and goal setting
- Resource vault with pain protocols and recipes
- Syncs with Health app
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The Ultimate Fitness, Movement & Nutrition System for a Body Built to Last. The Starrett System isn’t just another workout plan. It’s an all-in-one system to help you reach the summit of your physical potential and lay the foundation for a life full of adventure, vitality, and everything that matters most to you. Designed by world-renowned physical therapist Dr. Kelly Starrett and world-champion athlete Juliet Starrett, creators of The Ready State and 3x New York Times bestselling authors, this comprehensive 90-day program goes beyond aesthetics, helping you build a functional, durable, and resilient body for life. What’s Inside: - Expert-Led Training: 3 months of progressive strength and interval training workouts, tailored to support durability and performance for every stage of life. - Mobility & Recovery Programming led by Dr. Kelly Starrett: sessions to optimize your workouts and address nagging pain. - Nutrition & Lifestyle Programming: Macro-based nutrition guidance, proven sleep strategies to enhance recovery, lifestyle and environment programming, supplement recommendations, and more. - Habit Tracking & Goal Setting: Tools to help you stay consistent and track progress. - Resource Vault: Resources you need to level up, including pain protocols, recipes, travel workouts, and more. - Sync with Health app to update your metrics instantly Designed for Longevity: This isn’t a quick-fix program—it’s your basecamp for life. Whether you're training to thrive in your 30s, 40s, 50s, or beyond, the system is built for busy professionals and parents, offering practical solutions that fit into your lifestyle. Why The Starrett System? Unlike typical fitness programs that focus solely on unsustainable aesthetics, The Starrett System helps you: - Implement a nutrition program that optimizes metabolic health and is sustainable for life - Build strength, power, and mobility - Optimize recovery for lifelong performance - Develop a body that you can count on for adventure and fun now and as you age This program equips you with the tools to play offense with your health, not defense.
Screenshots
Verdict
Shift Adapt and Starrett System both sit at 5.0 stars, but that hides the real split: 100% of Shift Adapt's written reviews are positive against 0% of Starrett System's. Shift Adapt also leads on iOS requirement (11.0 vs 13.0). Starrett System's advantage is update cadence (monthly vs every 3 months) and ratings volume (6 vs 2). On price, rating, 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.
On the App Store both sit at effectively the same score — 5.0 for Shift Adapt against 5.0 for Starrett System. Both are backed by a comparable volume of ratings — 2 and 6 respectively. Written reviews are what separate them: 100% of Shift Adapt's written reviews are positive against 0% of Starrett System's.
Shift Adapt ships an update every 3 months, Starrett System monthly. The most recent releases landed on September 14, 2026 and September 21, 2026 respectively.
| Parameter | Shift Adapt | Starrett System |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (6 ratings) |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 2 | 6 — better |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 80 MB | 419 MB |
| Age rating | 4+ | 4+ |
| Developer | Unscared Inc | The Ready State Inc. |
Customer experience
Shift Adapt
Starrett System
In-app purchases
Shift Adapt
No in-app purchases
Starrett System
No in-app purchases
