WatchFit vs Substrato
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WatchFit
Create and schedule custom workouts directly on your Apple Watch. Tailor intervals, warm-ups, and cool-downs with time or distance-based steps. Receive real-time alerts for pace and heart rate to optimize your training.
- Custom workout creation
- Apple Watch integration
- Interval and phase customization
- Time and distance-based steps
- Heart rate and pace alerts
- Calendar integration
- No account required
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WatchFit is the ultimate fitness workout companion designed specifically for Apple Watch users who want to take their exercise routines to the next level. This app empowers you to create custom structured workouts tailored to your exact needs and seamlessly integrates them into the native Workout app on your Apple Watch, offering a smooth and personalized training experience. With WatchFit, building your perfect workout schedule has never been easier. You can customize every element of your training with detailed control over warmup, cooldown, and interval phases. Whether your workout steps are based on time or distance, WatchFit supports them all. For endurance sports such as running and cycling, it even offers distance-based step options, enhancing your precision and control in each session. You can plan your fitness routine ahead of time and watch as scheduled workouts automatically sync to your Apple Watch. Once added, these customized workouts appear right on the Workout app on your Apple Watch's home screen, ready to be started at the perfect moment, helping you stay accountable and motivated. One of the standout features of WatchFit is its advanced heart rate monitor integration and in-workout alert system. You can set up pace or heart rate alerts that notify you if you stray above or below your target zones during exercise. This real-time feedback keeps you in your ideal training intensity, ensuring every workout is optimized for maximum benefit. Managing your weekly fitness workout schedule is streamlined through an intuitive interface that lets you view your upcoming workouts, track completed sessions, and identify any missed ones. This visibility promotes consistency and helps reinforce your training habits. Plus, with calendar integration, your scheduled workouts are automatically added to your calendar app, so you never accidentally skip an important session. Privacy and security are paramount in WatchFit’s design. Unlike many fitness apps, WatchFit requires no account setup, and purchases are handled anonymously. Your custom workouts sync securely to your iCloud account, ensuring your data stays private and intact even if you switch devices or reinstall the app. WatchFit doesn’t gather user analytics or access personal workout data beyond verifying if workouts were completed, giving you full confidence in your privacy. Whether you're a seasoned athlete or just starting your fitness journey, WatchFit equips you with the tools to create personalized workouts that match your unique goals. By adding your workouts directly to the Apple Watch native Workout app, you reduce distractions and streamline your fitness experience, allowing you to focus fully on performance and progress. With its user-friendly scheduling, structured workout routines, heart rate alerts, and seamless Apple Watch integration, WatchFit is much more than a simple fitness workout app—it’s an intelligent fitness partner that supports your active lifestyle with precision and privacy. Maximize your training, stay committed to your goals, and enjoy the empowerment of having all your workouts perfectly organized on your Apple Watch home screen. Note: For the best experience, WatchFit is optimized for Apple Watch devices running watchOS 10 or later, paired with an iPhone. Terms & Conditions: https://www.apple.com/legal/internet-services/itunes/dev/stdeula Privacy Policy: https://sites.google.com/view/watchfit-privacy-policy"
Substrato
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Train and eat with the same precision. Substrato is for people who take training and nutrition seriously — and for the coaches who program both. Plan your macros over a dated protocol, build your workouts set by set, and watch a month of training and eating come together. Precise enough to hit your numbers. Simple enough to use every day. TRAIN • Build a workout from a 290-exercise library — five languages, muscle and equipment filters, a detail page for each • Track an exercise any way it needs — sets × reps, timed intervals, a duration, a distance, or a simple check-off — and link supersets • Run the session with a rest timer, tick sets in any order, and reorder exercises when a machine's taken • A Live Activity keeps the current set and rest countdown on your Lock Screen, Dynamic Island, and Apple Watch PLAN AND PREP YOUR NUTRITION • Dated protocols (cut, bulk, recomposition) with real start and end dates • Optional Training vs Rest day macros inside a single protocol • Prep: how much of each ingredient you need for the days ahead, with shelf-life warnings — then weigh everything you cook once and portion it perfectly across every meal, now with an isometric 3D view in Prep • Tag cooking methods for each ingredient (grilled, boiled, roasted…) so meal cards read at a glance • Meal logging: record what you actually ate and see how it lines up with the plan SEE IT COME TOGETHER • Insights: a month of training and eating as a calendar and cards — volume, muscles worked, rest, your usual training time, streaks, your heaviest lift, and per-lift progression • Apple Health: every ticked meal and finished workout is written to Health • An Activity timeline and cloud sync for all your protocols, not just the active one • Export your training history as a spreadsheet TRAINER MODE Substrato Trainer turns your programming into a professional tool your athletes execute with precision. • Manage every athlete on one screen • Build each athlete's protocol individually — personalized, not broadcast — now including their workouts, set by set • Log caliper skinfold readings and body-composition data for each athlete — Substrato does the body-fat math and tracks progress between sessions • See each athlete's adherence through the meals they log • Athletes receive plans instantly and run them with the same Prep and workout tools you use Send in seconds. You keep a read-only copy. Athlete data stays private. TRUSTED DATA Nutrition values are sourced from public food-composition databases including the U.S. Department of Agriculture FoodData Central. Dietary guidance references the USDA Dietary Guidelines for Americans and the World Health Organization Healthy Diet fact sheet. Substrato provides information for training and meal planning and is not medical advice. WHY SUBSTRATO • Planning, Prep, and workouts work offline • Coach handoffs, adherence tracking, and cross-device sync require an internet connection • No ads. No streaks. No nagging. • Available in English, Spanish, Portuguese, Russian, and Simplified Chinese • Designed for iPhone — your running workout extends to Apple Watch
Screenshots
Verdict
WatchFit and Substrato 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. WatchFit sells 5 in-app purchases, starting at $1.99 per month and Substrato sells 5 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
WatchFit ships an update every 3 weeks, Substrato every 10 days. The most recent releases landed on October 25, 2026 and October 22, 2026 respectively.
| Parameter | WatchFit | Substrato |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (34 ratings) — better | — |
| Positive reviews | 81.8% of reviews | — |
| Number of ratings | 34 — better | — |
| Update frequency | Every 3 weeks | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 17 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Mathieu Savaria | Cristian Garske |
In-app purchases
WatchFit
- WatchFit Premium$1.991 Month
- WatchFit Premium3 Days trial$9.991 Year
- WatchFit Premium (Special)Free
- WatchFit Premium (Sale)$9.99
- WatchFit Premium (Lifetime)$19.99
Substrato
- Premium$4.991 Month
- Trainer$14.991 Month
- Premium$39.991 Year
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- Trainer$119.991 Year
- Premium Lifetime$79.99









