# TF STUDIO vs Time Under Tension

The clearest difference is in-app purchases: Time Under Tension at none against TF STUDIO's 7. TF STUDIO's advantage is ratings volume (337 vs 16) and review sentiment (97% vs 88%). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. TF STUDIO sells 7 in-app purchases, starting at $19.99 per month. Time Under Tension asks for nothing beyond the download.

TF STUDIO holds the better App Store score, 4.9 against 4.8. That said, the two scores are not equally well evidenced: TF STUDIO has 337 ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 97% of TF STUDIO's written reviews are positive against 88% of Time Under Tension's.

TF STUDIO ships an update every 2 months, Time Under Tension every 3 months. The most recent releases landed on October 25, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | TF STUDIO | Time Under Tension |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (337 ratings)](https://appshunter.io/ios/app/tf-studio/id1558654839/reviews)** | [4.8 (16 ratings)](https://appshunter.io/ios/app/time-under-tension/id1638040069/reviews) |
| Number of ratings | **337** | 16 |
| Positive reviews | **97.4% of reviews** | 87.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 81 MB | 121 MB |
| Requires iOS | 16.6 | **16.4** |
| Devices | **iPhone, iPad, Apple TV** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Franken Worldwide Inc.](https://appshunter.io/developer/1558654841) | [Sutra Fitness, Inc.](https://appshunter.io/developer/914371834) |

## What reviewers say

### TF STUDIO

[App page](https://appshunter.io/ios/app/tf-studio/id1558654839)

This app offers dynamic Pilates workouts designed for at-home use, focusing on sculpting and strengthening without bulk. It features a blend of classic Pilates with strength-based sequences, suitable for all levels and available live, on-demand, or as reformer classes.

**Highlights:** Dynamic Power Pilates method, Strength-based, flowing sequences, Live, on-demand, and reformer classes, Beginner to advanced workouts, Smart filters for class selection, Pregnancy-friendly and cycle-syncing options

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TF STUDIO Monthly | $19.99 | per month |
| TF STUDIO Yearly | $179.99 | per year |
| T - F Studio - 999 | $9.99 | one-time |
| T - F Studio - 1499 | $14.99 | one-time |
| T - F Studio - 2099 | $20.99 | one-time |
| T - F Studio - 2999 | $29.99 | one-time |
| T - F Studio - 19999 | $199.99 | one-time |

**What reviewers like**

- 💪 Effective and challenging workouts
- 🧘‍♀️ Calming and grounding instruction
- 🔥 Visible body transformation results
- 🤩 Enjoyable and motivating
- 🧠 Holistic approach to health and wellness

**What reviewers complain about**

- 🐛 Occasional app glitches or video playback issues
- 🔍 Difficulty finding specific workouts
- 🕰️ Wish for more live/interactive classes

**Reported bugs**

- Some videos not playing properly
- Occasional app crashes

**Requested features**

- Custom playlists or favorites feature
- Improved video progress tracking
- More streaming options for TV integration


### Time Under Tension

[App page](https://appshunter.io/ios/app/time-under-tension/id1638040069)

This app fuses Pilates-inspired movements with strength training and cardio, focusing on tempo to engage different muscle fibers. It offers on-demand videos and online or in-person classes to provide a full-body workout.

**Highlights:** Pilates-inspired movements, Strength training and cardio fusion, Tempo-focused workouts, Engages fast and slow twitch muscle fibers, On-demand video classes, Online and in-person class options

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TF STUDIO free?

TF STUDIO is free to download, with in-app purchases available.

### Is Time Under Tension free?

Time Under Tension is free to download, with no in-app purchases.

### Which has better reviews, TF STUDIO or Time Under Tension?

TF STUDIO is rated higher. TF STUDIO averages 4.9 out of 5 from 337 ratings, while Time Under Tension averages 4.8 from 16 ratings.

### Do TF STUDIO or Time Under Tension have ads?

Neither TF STUDIO nor Time Under Tension shows ads.

### Which is updated more often, TF STUDIO or Time Under Tension?

TF STUDIO ships an update every 2 months, and Time Under Tension every 3 months. Most recently, TF STUDIO was updated on October 25, 2026 and Time Under Tension on October 21, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*