Mendi App vs Exerchain
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mendi App
This app uses a connected headband with advanced neurofeedback technology to monitor brain activity. It provides scientifically-validated cognitive training designed to improve focus, memory, and emotional balance through personalized exercises.
- Advanced neurofeedback technology
- Real-time brain activity insights
- Scientifically-validated cognitive training
- Boosts neuroplasticity
- Comfortable and lightweight headband
- Bluetooth connectivity
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Unlock Your Brain’s Full Potential with Mendi Elevate your cognitive wellness and transform your daily mental routine with Mendi, the brain training solution that harnesses advanced neurofeedback technology to help you thrive. Experience Cutting-Edge Brain Training Mendi pairs a sophisticated app with a sleek, lightweight headband to deliver scientifically-validated cognitive training. Utilizing state-of-the-art Functional Near-Infrared Spectroscopy (fNIRS), our system monitors changes in oxygenated blood flow to your prefrontal cortex, the brain’s powerhouse for focus, memory, emotional balance, and decision-making. With every session, gain clear, real-time insights into your brain’s performance and push your mental fitness to new heights. How It Works — Advanced Neurofeedback: Sensors on the Mendi headband track your brain’s activity, delivering precise and actionable feedback through proprietary algorithms. — Brain Training: Think of each session as an exercise for your mind, designed to boos neuroplasticity and strengthen your cognitive capabilities. — Safe & Scientifically-Backed: Our training protocol is not only effective but also grounded in rigorous scientific research, ensuring a safe and lasting benefit for your brain health. Consistency is Key Achieve measurable improvements by integrating Mendi into your routine. For optimal results, commit to daily training for six to eight weeks and experience a noticeable boost in mental clarity and focus. Meet the Mendi Headband — Effortless Connectivity: Enjoy quick, reliable connections with Bluetooth Low Energy (BLE). — Innovative fNIRS Technology: Experience neurofeedback engineered to revolutionize brain training. — Designed for Comfort: Weighing just 55g, the headband is both lightweight and comfortable for extended sessions. — Smart Features: Equipped with a built-in accelerometer and gyroscope, USB Type-C charging, and up to 60 sessions per charge, Mendi is built to keep up with your busy lifestyle. Invest in a Healthier, Sharper Mind With Mendi, taking charge of your brain health has never been more accessible or engaging. Join countless others on the journey to enhanced focus, improved emotional regulation, and better decision-making. Start your brain training revolution today and unlock the potential of a sharper, more resilient mind. Elevate your brain fitness, download Mendi now and experience the future of cognitive enhancement.
Exerchain
This health app uses AI to forecast your weight 1, 3, and 6 months into the future. It automatically logs activity, sleep, and body composition from supported devices, and allows manual meal entry for accurate predictions. Gain insights and personalized routines based on your unique data.
- AI-powered weight prediction (1, 3, 6 months)
- Automatic activity, sleep, and body composition logging
- Manual meal entry for accurate forecasting
- AI insights and personalized routines
- Syncs with ExerRing, ExerScale, and popular smartwatches
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EXERCHAIN is a health app that predicts your future weight — 1, 3, and 6 months ahead — based on your real-life data. It automatically logs your activity, sleep, and body composition with supported devices, while meals can be entered manually for accurate forecasting. Get daily predictions, AI insights, and soon, personalized routines powered by your own data. [Key Features] - AI-Powered Weight Prediction (1, 3, 6 months) - TDEE-Based Forecasting Engine - Integrated logging of activity, sleep, and diet (auto + manual) - Actionable AI Insight Comments - Sync with ExerRing & ExerScale - Also compatible with Apple Watch, Fitbit, Galaxy Watch - Personalized routine & AI health reports (coming soon) [Device Overview] ExerRing: 24/7 tracking of heart rate, activity, sleep, and recovery ExerScale: Precise measurement of over 45 body composition metrics ※ You must use at least one device (ExerRing or ExerScale) to activate the app features EXERCHAIN is more than just a tracker. It builds a behavior-changing loop: Prediction → Insight → Action → Transformation YOUR DATA, YOUR MOVE. — * Access Information * [Required] - HealthKit access - Heart rate to monitor and generate accurate workout information - Resting heart rate to provide accurate workout statistics - Motion & Fitness - Monitor user's movements - To provide more accurate steps data - Statistics on walking based on steps data [Optional] - Location: Location based service provided - Notification: Push messages from ExerChain(warning: alert, badges may be included) - Camera: for profile images and to record workouts - Photos, media, files: for profile images and to record workouts
Screenshots
Verdict
The clearest difference is review sentiment: Mendi App at 77% against Exerchain's 27%. Mendi App also leads on rating (4.4 vs 2.7) and ratings volume (454 vs 12). Exerchain's advantage is monetization model (free vs paid). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Mendi App holds the better App Store score, 4.4 against 2.7. That said, the two scores are not equally well evidenced: Mendi App has 454 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 77% of Mendi App's written reviews are positive against 27% of Exerchain's.
Mendi App ships an update every 10 days, Exerchain monthly. The most recent releases landed on September 17, 2026 and July 26, 2026 respectively.
| Parameter | Mendi App | Exerchain |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (454 ratings) — better | 2.7 (12 ratings) |
| Positive reviews | 76.7% of reviews — better | 27.3% of reviews |
| Number of ratings | 454 — better | 12 |
| Update frequency | Every 10 days — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone | iPhone, Apple Watch — better |
| Requires iOS | 16.0 — better | 16.2 |
| Further details — not scored | ||
| Size | 489 MB | 73 MB |
| Age rating | 17+ | 4+ |
| Developer | Mendi Innovations AB | Exerchain |
Customer experience
Mendi App
Exerchain
Bugs and requests
Mendi App
Reported bugs
4 issues- App freezing and crashing
- Headband sensor issues
- Inconsistent score/progress tracking
- Orientation and display problems
Requested features
5 requests- More game/training variety
- Advanced data tracking and analytics
- iPad/tablet support
- Customization options for visuals and audio
- Integration with other health/fitness apps
Exerchain
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Mendi App
No in-app purchases
Exerchain
No in-app purchases









