Slocum vs Ankle Flex
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Slocum
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This research application was developed by the Slocum Research & Education Foundation at the Slocum Center for Orthopedics & Sports Medicine in Eugene, Oregon, USA. This application is designed to evaluate whether iPhone health app integration gait metrics can be used to benchmark functional recovery after ankle fracture.
Ankle Flex
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A timer app associated with the Ankle Flex physical therapy device. Includes the default timers for the Ankle Flex protocol, the ability to create new custom timers, and automatic activity logging.
Screenshots
Verdict
The clearest difference is update cadence: Slocum at monthly against Ankle Flex's every 5 months. 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.
Slocum ships an update monthly, Ankle Flex every 5 months. The most recent releases landed on September 25, 2026 and October 12, 2026 respectively.
| Parameter | Slocum | Ankle Flex |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.3 — better | 15.6 |
| Further details — not scored | ||
| Size | 62 MB | 10 MB |
| Age rating | 17+ | 4+ |
| Developer | DONALD B SLOCUM RESEARCH AND EDUCATIONAL FOUNDATION FOR ORTHOPEDIC AND SPORTS MEDICINE | Perry Hooker |
In-app purchases
Slocum
No in-app purchases
Ankle Flex
No in-app purchases
