Comparison

Onyx Physical Therapy vs FunctionRx

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

Head to head
About

Onyx Physical Therapy

Features
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Welcome to the Onyx Physical Therapy App! Log on to access your personalized Home Exercise Program on your mobile device. Using this app, you can access your personalized Home Exercise Program with HD Instructional videos. On the 'Messages' tab, you can securely communicate with your Onyx Physical Therapy provider. As you complete your exercises, we'll give you trophies and medals to celebrate your progress! On the 'Awards' tab, you can track these items. Prefer a language other than English? Go to the 'More' tab and select 'Languages' to pick another language option. If you need to book an appointment, please go to the 'Appointments' tab for more info. Make sure to select 'Mark as Complete' when doing your exercises to ensure that your provider can keep track of your progress! You must be an Onyx Physical Therapy patient to gain access. This app integrates with your iPhone's Health app to read daily step count data allowing your provider to monitor your activity.

About

FunctionRx

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FunctionRx brings professional posture alignment therapy and functional movement training directly to your device. Say goodbye to chronic pain and discover how proper body alignment can transform your life.

Screenshots

Onyx Physical Therapy4 screens
FunctionRx3 screens

Verdict

The call

The clearest difference is update cadence: FunctionRx at every 10 days against Onyx Physical Therapy's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

Onyx Physical Therapy ships an update every 9 months, FunctionRx every 10 days. The most recent releases landed on October 7, 2026 and November 5, 2026 respectively.

Scorecard1 real difference ยท 5 level
Onyx Physical Therapy versus FunctionRx: the parameters behind the verdict, then further details
ParameterOnyx Physical TherapyFunctionRx
PriceFreeFree
Update frequencyEvery 9 monthsEvery 10 days โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.1
Further details โ€” not scored
Size43 MB39 MB
Age rating17+17+
DeveloperOnyx Physical Therapy and Wellness Inc.FunctionRx LLC

In-app purchases

None

Onyx Physical Therapy

No in-app purchases

None

FunctionRx

No in-app purchases

Questions

Is Onyx Physical Therapy free?
Onyx Physical Therapy is free to download, with no in-app purchases.
Is FunctionRx free?
FunctionRx is free to download, with no in-app purchases.
Do Onyx Physical Therapy or FunctionRx have ads?
Neither Onyx Physical Therapy nor FunctionRx shows ads.
Which is updated more often, Onyx Physical Therapy or FunctionRx?
Onyx Physical Therapy ships an update every 9 months, and FunctionRx every 10 days. Most recently, Onyx Physical Therapy was updated on October 7, 2026 and FunctionRx on November 5, 2026.

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