Comparison

Mendi App vs Bida Foundation

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Advanced neurofeedback technology
  • Real-time brain activity insights
  • Scientifically-validated cognitive training
  • Boosts neuroplasticity
  • Comfortable and lightweight headband
  • Bluetooth connectivity
Features
Read full description

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.

About

Bida Foundation

This app provides online fencing training content for athletes of all ages and skill levels. It features professional warm-ups, footwork drills, conditioning exercises, and mental training programs developed by world-class fencers.

Highlights
  • Online fencing training content
  • Warm-up and footwork workouts
  • Physical conditioning exercises
  • Full-body stretching routines
  • Beginner and advanced programs
  • Psychological and mental training
Features
Read full description

The Bida Foundation offers online training content for fencers from all over the world, of all ages and all levels of their skills. This content includes professional warm-up for fencers, world-class footwork workouts, diverse and interesting activities to improve overall physical condition, as well as special sets of exercises for full-body stretching and recreation. You will also find a special program for beginners and an author's program on psychological and mental training for athletes. Founded by world stars of epee fencing Sergey and Violetta Bida, the program was invented and developed for high-quality and rapid improvement of skills and results of athletes-fencers of any level and age. Develop with us. FENCING ANYWHERE Train wherever you wish. At home, in the park, in the gym, on the beach, on vacation, on playgrounds or in your fencing club. Do it wherever it is convenient for you and at any time. We specifically show in our videos that you can train without limiting yourself to just the fencing hall. You will be able to improve your level of fencing skills wherever you are. ALL LEVELS WELCOME Bida Foundation for all levels of training. It doesn't matter what level of training you have. On our platform, you can find training programs specifically for you and your skill level, even if you have never tried fencing in your life. We have created a gradation of levels specifically for your convenience. Therefore, if you think that the Begginer level is too boring for you, you can safely move on to higher levels. And vice versa. We advise professional athletes to use not only the Olympic level, but also to open training sessions at the Advance, Intermediate, Beginner and even Introduction levels. Download it today. SPECIAL TRAINING FOR FENCERS Each workout on our platform is unique in itself, and we tried not to repeat the exercises. There are sections on our platform: ⁃ INTRODUCTION TO FENCING - Basic technical actions of fencers. This section is especially for those who have never held fencing equipment in their hands and are just starting their sports career for the Olympic Games. ⁃ WARM-UP - Special sets of exercises that we use ourselves and which warm up the entire body of a fencer in a short period of time. ⁃ FOOWORK is the basic job of all fencing athletes. Here you will find special complexes for improving movement techniques, speed, reaction, tactics and much more. CONDITIONING is a section of general physical training that is tailored specifically to the needs of the sport of fencing, here you will find exercises for balance, coordination, reaction, speed, strength, and endurance. STRETCHING - We highly recommend using our stretching training complexes after the main workout. Protect your body from injury and improve your recovery. MENTAL - High-quality study and theory of psychology from Violetta Bida. With a university degree in sports psychology, Violetta talks in detail and reveals many psychological subtleties that help athletes perform better in competitions. CONSTANTLY UPDATED DATABASE The Bida Foundation follows a life philosophy of constant and continuous self-improvement. Therefore, we are constantly updating our content base and adding new workout videos to the platform. NEWS SECTION We also offer the opportunity for the fencing community to communicate and share their training successes in a special News section on our platform. Moreover, online prizes are waiting for you for completing a certain number of workouts. Download the Bida Foundation to your smartphone or tablet now and unlock your full fencing potential. Be strong, be the best and see you on the strip. Terms of Use (EULA) - https://bidafoundation.online/terms-of-use

Screenshots

Mendi App4 screens
Bida Foundation4 screens

Verdict

The call

The clearest difference is rating: Mendi App at 4.4 against Bida Foundation's 3.9. Mendi App also leads on in-app purchases (none vs 5) and ratings volume (460 vs 14). Bida Foundation's advantage is review sentiment (100% vs 76%) and iOS requirement (14.0.0 vs 16.0). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Bida Foundation sells 5 in-app purchases, starting at $14.99 per month. Mendi App asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Mendi App holds the better App Store score, 4.4 against 3.9. That said, the two scores are not equally well evidenced: Mendi App has 460 ratings behind it against 14, so its average is the more settled of the two. Written reviews complicate that: 76% of Mendi App's written reviews are positive against 100% of Bida Foundation's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Mendi App ships an update every 10 days, Bida Foundation every 3 weeks. Both last shipped on October 24, 2026.

Scorecard6 real differences · 4 level
Mendi App versus Bida Foundation: the parameters behind the verdict, then further details
ParameterMendi AppBida Foundation
PriceFreeFree
Rating4.4 (460 ratings) — better3.9 (14 ratings)
Positive reviews76.4% of reviews100.0% of reviews — better
Number of ratings460 — better14
Update frequencyEvery 10 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhoneiPhone, iPod — better
Requires iOS16.014.0.0 — better
Further details — not scored
Size489 MB54 MB
Age rating17+4+
DeveloperMendi Innovations ABBida Foundation Online

Customer experience

Mendi App

All ratings454 ratings
Positive85.0%
Neutral4.0%
Negative11.0%
Written reviews254 reviews
Positive76.4%
Neutral6.3%
Negative17.3%

Bida Foundation

All ratings14 ratings
Positive71.4%
Neutral7.1%
Negative21.4%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

Bida Foundation

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Mendi App

No in-app purchases

5 purchases

Bida Foundation

Subscriptions4
  • Pro Access3 Days trial$14.991 Month
  • Pro Access3 Days trial$16.491 Month
  • Pro Access3 Days trial$114.991 Year
Show 1 more
  • Pro Access3 Days trial$127.991 Year
One-time1
  • Introduction$49.99

Questions

Is Mendi App free?
Mendi App is free to download, with no in-app purchases.
Is Bida Foundation free?
Bida Foundation is free to download, with in-app purchases available.
Which has better reviews, Mendi App or Bida Foundation?
Mendi App is rated higher. Mendi App averages 4.4 out of 5 from 460 ratings, while Bida Foundation averages 3.9 from 14 ratings.
Do Mendi App or Bida Foundation have ads?
Neither Mendi App nor Bida Foundation shows ads.
Which is updated more often, Mendi App or Bida Foundation?
Mendi App ships an update every 10 days, and Bida Foundation every 3 weeks. Most recently, Mendi App was updated on October 24, 2026 and Bida Foundation on October 24, 2026.

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