Comparison

Mendi App vs Upstep 3D Scan

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

Upstep 3D Scan

Transform your iPhone into a precision foot scanner to create custom orthotics. Capture a detailed 3D model of your feet from home in minutes, with guided instructions. Your scans are used by podiatrists to design and manufacture personalized orthotics.

Highlights
  • Precision 3D foot scanning with iPhone
  • Guided on-screen and voice instructions
  • Scan from home, no clinic visits
  • 3D preview of foot scans
  • Custom orthotics design and manufacturing
  • Works with iPhone camera only
Features
Read full description

Custom orthotics start with a perfect scan. Upstep 3D Scan turns your iPhone into a precision foot scanner. In just a few minutes, capture a detailed 3D model of each foot — no special equipment, no clinic appointments, no guesswork. How it works: 1. Place your foot on a flat surface 2. Follow the on-screen and voice-guided instructions 3. Review your completed scan and submit your order Why Upstep? • Scan from home — no office visit required • Step-by-step video guidance walks you through the entire process • Real-time voice instructions so you can focus on scanning, not reading • Review a 3D preview of each foot before submitting • Precise enough to create medical-grade custom orthotics • Works with your iPhone's camera — no accessories needed Did you know? Your feet have 26 bones, 33 joints, and over 100 muscles each. Generic insoles ignore all of that. Upstep orthotics are built from your unique 3D foot scan, so they fit the way your feet actually are — not an average. What happens after scanning? Your 3D scans are securely sent to Upstep's team of podiatrists who design orthotics tailored to your feet and lifestyle. Your custom orthotics are then manufactured and shipped directly to you. Requires an active Upstep order. Visit upstep.com to get started.

Screenshots

Mendi App4 screens
Upstep 3D Scan3 screens

Verdict

The call

The clearest difference is review sentiment: Mendi App at 76% against Upstep 3D Scan's 0%. Mendi App also leads on rating (4.4 vs 1.0) and ratings volume (460 vs 5). Upstep 3D Scan's advantage is monetization model (free vs paid). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Mendi App holds the better App Store score, 4.4 against 1.0. That said, the two scores are not equally well evidenced: Mendi App has 460 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 76% of Mendi App's written reviews are positive against 0% of Upstep 3D Scan's.

UpkeepUpdate frequency

Mendi App ships an update every 10 days, Upstep 3D Scan fortnightly. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 6 level
Mendi App versus Upstep 3D Scan: the parameters behind the verdict, then further details
ParameterMendi AppUpstep 3D Scan
PriceFreeFree
Rating4.4 (460 ratings) — better1.0 (5 ratings)
Positive reviews76.4% of reviews — better0.0% of reviews
Number of ratings460 — better5
Update frequencyEvery 10 days — betterFortnightly
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhoneiPhone, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size489 MB149 MB
Age rating17+4+
DeveloperMendi Innovations ABShmuel Duan

Customer experience

Mendi App

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

Upstep 3D Scan

All ratings5 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

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

Upstep 3D Scan

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Mendi App

No in-app purchases

None

Upstep 3D Scan

No in-app purchases

Questions

Is Mendi App free?
Mendi App is free to download, with no in-app purchases.
Is Upstep 3D Scan free?
Upstep 3D Scan is free to download, with no in-app purchases.
Which has better reviews, Mendi App or Upstep 3D Scan?
Mendi App is rated higher. Mendi App averages 4.4 out of 5 from 460 ratings, while Upstep 3D Scan averages 1.0 from 5 ratings.
Do Mendi App or Upstep 3D Scan have ads?
Neither Mendi App nor Upstep 3D Scan shows ads.
Which is updated more often, Mendi App or Upstep 3D Scan?
Mendi App ships an update every 10 days, and Upstep 3D Scan fortnightly. Most recently, Mendi App was updated on October 29, 2026 and Upstep 3D Scan on October 28, 2026.

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