ExerciseRx® vs HOBSCOTCH CAT Study
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ExerciseRx®
This platform helps users increase physical activity by tailoring goals, identifying barriers, and providing motivational support. It connects users with their healthcare team and tracks physical activity patterns for a provider dashboard. An activation code is currently required.
- Tailored physical activity goals
- Identification of barriers and facilitators
- Motivational nudges
- Connection to healthcare team
- Provider dashboard integration
- Physical activity pattern tracking
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ExerciseRx was developed to support increasing physical activity for health. The platform tailors goals, identifies barriers and facilitators to activity, provides motivational nudges, and connection to the healthcare team. The physical activity patterns are connected to a provider dashboard. Currently an ExerciseRx user code is required to activate the account.
HOBSCOTCH CAT Study
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The new, improved version of the HOBSCOTCH mobile app that allows study participants to submit daily and weekly logs, scheduled reminders for such logs, save journal entries, and receive updates about HOBSCOTCH
Screenshots
Verdict
The clearest difference is iOS requirement: ExerciseRx® at 14.0 against HOBSCOTCH CAT Study's 16.4. 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ExerciseRx® ships an update every 6 weeks, HOBSCOTCH CAT Study every 2 months. The most recent releases landed on August 26, 2026 and September 22, 2026 respectively.
| Parameter | ExerciseRx® | HOBSCOTCH CAT Study |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 6 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 7 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | University Of Washington | Edward Camp |
In-app purchases
ExerciseRx®
No in-app purchases
HOBSCOTCH CAT Study
No in-app purchases
Questions
Is ExerciseRx® free?
Is HOBSCOTCH CAT Study free?
Do ExerciseRx® or HOBSCOTCH CAT Study have ads?
Which is updated more often, ExerciseRx® or HOBSCOTCH CAT Study?
Other comparisons
