Aetrex Achilles vs AvaSci
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Aetrex Achilles
This app utilizes AI and computer vision to accurately measure your feet and determine your median shoe size. Future updates will offer personalized shoe recommendations based on your measurements.
- AI-powered foot measurement
- Computer vision technology
- Accurate median shoe size determination
- Future shoe recommendations
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The Achilles app uses AI and Computer Vision to measure your feet and determine your median shoe size accurately. A future version of this app will automatically provide recommendations of best fitting shoes for you.
AvaSci
This app uses patented motion capture and AI to precisely measure joint function, revealing details imperceptible to the human eye. It offers an easy-to-use interface to revolutionize how human body movement is analyzed. The app is free to download and use.
- Motion capture technology
- Artificial intelligence analysis
- Detailed joint function measurement
- Easy-to-use interface
- Revolutionary movement analysis
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AvaSci brings a new standard of measuring joint function. It’s free! Our patented solutions bring the power of motion capture and artificial intelligence to display details the human eye can not see. It is easy to use and will change the way we measure the movement of the human body. Terms of Use : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: AvaSci at 5.0 against Aetrex Achilles's 2.8. AvaSci also leads on update cadence (every 5 days vs every 2 weeks) and iOS requirement (13.0 vs 15.6). Aetrex Achilles's advantage is in-app purchases (none vs 2) and ratings volume (34 vs 2). On price, 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
Both are free to download. AvaSci sells 2 in-app purchases, starting at $0.99 per month. Aetrex Achilles asks for nothing beyond the download.
AvaSci holds the better App Store score, 5.0 against 2.8. That said, the two scores are not equally well evidenced: Aetrex Achilles has 34 ratings behind it against 2, so its average is the more settled of the two.
Aetrex Achilles ships an update every 2 weeks, AvaSci every 5 days. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | Aetrex Achilles | AvaSci |
|---|---|---|
| Price | Free | Free |
| Rating | 2.8 (34 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 22.7% of reviews | — |
| Number of ratings | 34 — better | 2 |
| Update frequency | Every 2 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 186 MB | 378 MB |
| Age rating | 4+ | 17+ |
| Developer | Aetrex Worldwide, Inc. | Avasci LLC |
Customer experience
Aetrex Achilles
AvaSci
In-app purchases
Aetrex Achilles
No in-app purchases
AvaSci
- Monthly Subscription$0.991 Month
- Yearly Subscription$99.991 Year
