# Time Under Tension: Gym Timer — Pilates, Bodybuilding, Muscles

> Pilates, Bodybuilding, Muscles (iPhone/iPad app by SIMON NGIN.)

- Source: https://appshunter.io/ios/app/time-under-tension/id6751932698 (this page in markdown: same URL + `.md`)
- Developer: [SIMON NGIN](https://appshunter.io/developer/1828355382)
- Category: Health & Fitness
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.5 · 12 MB
- Languages: American English
- Released: 2025-09-15
- Data updated: 2025-12-09
- User reviews in markdown: https://appshunter.io/ios/app/time-under-tension/id6751932698/reviews.md

## What is Time Under Tension?

Time Under Tension – Perfect Every Rep

Unlock the secret to smarter training. Time Under Tension is the first app built around the science of tempo—teaching you not just how long to lift, but why it matters. Whether you want to build muscle, recover faster, or prevent injuries, our research-backed protocols make every rep count.

Why Train with Tempo?

Maximize Muscle Growth: Studies show controlled tempo boosts protein synthesis by up to 45% vs. rushing reps.

Prevent Injuries: Slower, guided movements reduce joint stress and improve coordination—cutting injury risk by up to 65%.

Accelerate Recovery: Clinically proven tempos support 80%+ success rates in rehab for tendinopathy and post-surgery patients.

Who It’s For

Fitness Enthusiasts: Smash through plateaus and get more from every workout.

Physiotherapy Patients: Recover with clinically validated, tempo-controlled routines.

Personal Trainers: Deliver evidence-based programs that clients can trust.

Pilates Enthusiasts: Time under tension is pivotal to pilates movements. 

Beginners: Learn proper form and build strength safely from day one.

Transform your training with science. Every rep, every set, every phase—done right.

Privacy Policy: https://simonngin.github.io/timeundertension/privacy.html

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Time under Tension Pro Monthly | $3.99 | per month |
| Time under Tension Pro Yearly | $29.99 | per year |



## Version history (last 4 releases)

### 1.3 — 2025-12-08

Fixed an issue where updated app was crashing for existing users.

### 1.2 — 2025-12-03

We listened!
Exercises can start in eccentric or concentric movements so in this update, we have added the ability to flip the order of movements to better describe the exercise.

### 1.1 — 2025-09-20

Added a sample workout for pro users and update mandatory field.

### 1.0 — 2025-09-15

No release notes.

## More apps by SIMON NGIN

- [Pacer: Live running feedback](https://appshunter.io/ios/app/pacer/id6748974835)
- [Daily Brain: Memory Games](https://appshunter.io/ios/app/daily-brain/id6753677544)

All apps by SIMON NGIN: https://appshunter.io/developer/1828355382

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2025-12-09.*