Comparison

Ultimateinstability vs Tier One PT

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

Head to head
About

Ultimateinstability

Access over 2000 animated exercises and pre-built workout programs using specialized equipment. Connect with a community of professionals and sync your workouts with Apple Health.

Highlights
  • 180+ animated exercises
  • 2000+ 3D animated exercises
  • Pre-built workout programs
  • UI-community for professionals
  • Sync with Apple Health App
Features
Read full description

The Ultimateinstability app allows you to complement workouts with Aquabags, Aquaballs and our Hydrovest. Not only does it contain 180+ animated exercises previously hosted on our Online Training Center it also provides you with countless other training exercises; dumbells, functional, core, etc. The Ultimateinstability app contains: - The UI-community, an online gathering place for professionals where ideas can be spread and discussed - 2000+ 3D animated exercises which you can use to create your own workouts and programs - Pre-build workout programs with the Aquabags, Aquaballs and our Hydrovest IMPORTANT NOTE: Before you get access to this application, you have to create your personal account for the Ultimateinstability app (This account is completely independent of the account you used on our website). Once you created your account you will be able to use the application on your desktop and on your phone by downloading the app in the Apple store. Get 3 months of free access to the Ultimateinstability app by creating your account and joining the UI Tribe! You can sync this app with Apple Health App. If you enable this connection, any workout in the Health app with automatically be added to your Activity Calendar.

About

Tier One PT

Access your personalized home exercise program with HD instructional videos. Securely message your provider, track progress with achievement badges, and monitor daily activity. Book appointments and select your preferred language.

Highlights
  • Personalized Home Exercise Program
  • HD Instructional Videos
  • Secure Messaging with Provider
  • Achievement Badges and Trophies
  • Activity Tracking Integration
  • Appointment Booking
  • Multi-language Support
Features
Read full description

Welcome to the Tier One PT 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 Tier One PT provider. As you make progress in your program, you'll earn virtual trophies and achievement badges to celebrate your milestones! Visit the 'Awards' tab to see your achievements and track 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 a Tier One PT patient to gain access. This app integrates with your phone's Motion and Fitness activity framework to read daily step count data allowing your provider to monitor your activity.

Screenshots

Ultimateinstability4 screens
Tier One PT4 screens

Verdict

The call

The clearest difference is rating: Tier One PT at 5.0 against Ultimateinstability's 4.6. Ultimateinstability's advantage is update cadence (every 2 months vs every 10 months) and ratings volume (9 vs 1). On price, ads, in-app purchases and monetization model 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

Tier One PT holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Ultimateinstability has 9 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Ultimateinstability ships an update every 2 months, Tier One PT every 10 months. The most recent releases landed on September 10, 2026 and June 22, 2026 respectively.

Scorecard3 real differences · 7 level
Ultimateinstability versus Tier One PT: the parameters behind the verdict, then further details
ParameterUltimateinstabilityTier One PT
PriceFreeFree
Rating4.6 (9 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings9 — better1
Update frequencyEvery 2 months — betterEvery 10 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.0 — better15.1
Further details — not scored
Size210 MB43 MB
Age rating12+12+
DeveloperUltimateinstability B.V.Tier One Physical Therapy LLC

Customer experience

Ultimateinstability

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Tier One PT

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Ultimateinstability

No in-app purchases

None

Tier One PT

No in-app purchases

Questions

Is Ultimateinstability free?
Ultimateinstability is free to download, with no in-app purchases.
Is Tier One PT free?
Tier One PT is free to download, with no in-app purchases.
Which has better reviews, Ultimateinstability or Tier One PT?
Tier One PT is rated higher. Ultimateinstability averages 4.6 out of 5 from 9 ratings, while Tier One PT averages 5.0 from 1 ratings.
Do Ultimateinstability or Tier One PT have ads?
Neither Ultimateinstability nor Tier One PT shows ads.
Which is updated more often, Ultimateinstability or Tier One PT?
Ultimateinstability ships an update every 2 months, and Tier One PT every 10 months. Most recently, Ultimateinstability was updated on September 10, 2026 and Tier One PT on June 22, 2026.

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