# Interval Timer vs Evolution Barbell

The clearest difference is rating: Evolution Barbell at 5.0 against Interval Timer's 4.5. Evolution Barbell also leads on in-app purchases (none vs 8) and ads (none vs shown). Interval Timer's advantage is update cadence (every 9 days vs every 2 months) and ratings volume (19K vs 17). On price and device support there is nothing between them.

Both are free to download. Interval Timer sells 6 in-app purchases, starting at $0.99 per month. Evolution Barbell asks for nothing beyond the download.

Evolution Barbell holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Interval Timer has 19K ratings behind it against 17, so its average is the more settled of the two.

Interval Timer ships an update every 9 days, Evolution Barbell every 2 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Interval Timer | Evolution Barbell |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (19K ratings)](https://appshunter.io/ios/app/interval-timer-tabata-timer/id406473568/reviews) | **[5.0 (17 ratings)](https://appshunter.io/ios/app/evolution-barbell/id6451120303/reviews)** |
| Number of ratings | **19K** | 17 |
| Positive reviews | 72.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 143 MB | 184 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [NEO PIXEL LABS PTE. LTD.](https://appshunter.io/developer/1788472183) | [Evolution Barbell LLC](https://appshunter.io/developer/1696660845) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-tabata-timer/id406473568)

This app helps you manage workout intervals with customizable work and rest periods. It runs in the background and allows music playback, with options to save settings and share progress. Integrates with Apple Health for heart rate monitoring.

**Highlights:** Customizable sets, intervals, and rest times, Runs in background and with screen locked, Music playlist integration, Save settings as templates, Apple Health integration for heart rate, Post workouts to social media

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus - 1 Month | $0.99 | per month |
| Premium - 1 Month | $1.99 | per month |
| Plus - 1 Month | $1.99 | per month |
| Premium - 1 Month | $2.99 | per month |
| Plus - 1 Year | $4.99 | per year |
| Premium - 1 Year | $9.99 | per year |

**What reviewers like**

- 🚀 Free version works well
- 👍 Customizable intervals and timers
- 👍 Flexible for different workouts
- 👍 Easy to use and set up
- 👍 Provides visual and audio cues

**What reviewers complain about**

- 🐛 Timer issues (stops, loses time)
- 🔋 Drains battery when used
- 💰 Expensive subscription model
- 📢 Intrusive ads
- 🔒 Incompatible with other apps

**Reported bugs**

- Ads block functionality
- App freezes or crashes
- Timer doesn't work in background

**Requested features**

- Add notes to workouts
- Provide workout history and analytics
- Allow syncing with Apple Health
- Improve Apple Watch integration
- Add more customization options


### Evolution Barbell

[App page](https://appshunter.io/ios/app/evolution-barbell/id6451120303)

Access personalized workout programs and track your fitness journey. Monitor workouts, nutrition, habits, and measurements with guidance from your coach. Connect with communities and earn badges for achievements.

**Highlights:** Access training plans and track workouts, Follow exercise and workout videos, Track meals and make better food choices, Monitor daily habits and progress, Message your coach in real-time, Connect with digital communities, Track body measurements and progress photos

**Features:** Apple Wallet, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Interval Timer free?

Interval Timer is free to download, with in-app purchases available.

### Is Evolution Barbell free?

Evolution Barbell is free to download, with no in-app purchases.

### Which has better reviews, Interval Timer or Evolution Barbell?

Evolution Barbell is rated higher. Interval Timer averages 4.5 out of 5 from 19K ratings, while Evolution Barbell averages 5.0 from 17 ratings.

### Do Interval Timer or Evolution Barbell have ads?

Interval Timer shows ads; Evolution Barbell does not.

### Which is updated more often, Interval Timer or Evolution Barbell?

Interval Timer ships an update every 9 days, and Evolution Barbell every 2 months. Most recently, Interval Timer was updated on November 7, 2026 and Evolution Barbell on November 3, 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.*