Sisu: Your Personal Trainer
Lauri Rantanen Health & Fitness iPhoneiPadiPod touchApple Watch
Sisu: Your Personal Trainer is a free Health & Fitness app for iPhone and iPad by Lauri Rantanen. Requires iOS 26.1. Updated May 7, 2026.
- Price
- Free
- on the App Store
- Size
- 28 MB
- Age 12+
- Updated
- May 7
- 2026 · v1.5
Screenshots
About Sisu: Your Personal Trainer
Sisu is your personal training companion that combines smart workout tracking with AI-powered coaching in one app. Track your workouts - Check off sets in real-time at the gym - Track weights, reps, and sets for every exercise - Automatic timer measures workout duration - RPE rating for each exercise Sisu AI — Your personal coach - Analyzes your training and gives personalized recommendations - Creates tailored workout programs based on your profile - Remembers previous conversations and tracks your progress - Answers your training questions Custom programs - Create and edit your own workout programs - Choose exercises from an extensive exercise library - Reorder exercises with drag and drop - Let AI create programs for you Calendar and history - View your training history in a calendar view - Detailed workout reports with sets and weights - Track your consistency and progress Analytics - Weight progression by exercise - Muscle group distribution - Weekly and monthly statistics Sisu is for all fitness levels — from beginner to experienced.
What’s new
Version 1.5 · Updated May 7, 2026
Train with just your Apple Watch! Leave your phone in the locker room: • Browse programs • Log sets • Adjust weights • Record RPE from your wrist Smarter Sisu AI coaching: • Sisu AI suggests weight changes based on your training data • More precise analyses using RPE and progression • Sisu AI adapts even better to your skill level
App privacy
The developer, Lauri Rantanen, reported these privacy practices to Apple.
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Health & Fitness: Fitness
- Contact Info: Email Address
- Identifiers: User ID
- Diagnostics: Crash Data, Performance Data
Used for: Product Personalization, App Functionality
Alternatives to Sisu: Your Personal Trainer
Looking for apps like Sisu: Your Personal Trainer? Here are 6 similar apps on the App Store. The highest rated is VitaCal: Calorie Tracker (4.7/5), and all 6 are free to download.
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TE3 Pro
-
Powerbase App
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SisuLift: AI Workout Planner
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VitaCal: Calorie Tracker
4.7
-
Performance Unit
-
Muutos
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Sisu: Your Personal Trainer | – | Free | May 7, 2026 | |
| TE3 Pro | – | Free | Feb 29, 2024 | Compare |
| Powerbase App | – | Free | Oct 23, 2026 | Compare |
| SisuLift: AI Workout Planner | – | Free | Oct 21, 2026 | Compare |
| VitaCal: Calorie Tracker | 4.7 / 5 (7) | Free | Oct 21, 2026 | Compare |
| Performance Unit | – | Free | Oct 23, 2026 | Compare |
| Muutos | – | Free | Sep 21, 2026 | Compare |