# 4Time vs B3 Runtime

The clearest difference is price: B3 Runtime at Free against 4Time's $0.99. B3 Runtime also leads on in-app purchases (none vs 7) and update cadence (every 3 weeks vs every 3 months). 4Time's advantage is iOS requirement (8.0 vs 15.1). On ads and device support there is nothing between them.

B3 Runtime is free to download; 4Time costs $0.99 up front. 4Time sells 7 one-off in-app purchases. B3 Runtime asks for nothing beyond the download.

4Time ships an update every 3 months, B3 Runtime every 3 weeks. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | 4Time | B3 Runtime |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.4 (49 ratings)](https://appshunter.io/ios/app/4time-xf-wod-timer/id490035194/reviews)** | — |
| Number of ratings | **49** | — |
| Positive reviews | 90.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 44 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [MettaBot, LLC](https://appshunter.io/developer/413025216) | [B3 Innovation AB](https://appshunter.io/developer/1736498082) |

## What reviewers say

### 4Time

[App page](https://appshunter.io/ios/app/4time-xf-wod-timer/id490035194)

This app provides a suite of versatile timers designed for XF and XF-style workouts. It includes features like rep counting, round-by-round result tracking, and a programmable Tabata timer. Additionally, it offers remote control functionality with a second iOS device and music library integration.

**Highlights:** Standard timer, Countdown timer, Interval timer, Lap timer, Programmable Tabata timer, Remote control with second iOS device, Rep counting by screen tap, Workout results tracking

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remote Control | $0.99 | one-time |
| Premium Timer Sound 1 | $0.99 | one-time |
| Premium Timer Sound 2 | $0.99 | one-time |
| Premium Timer Sound 3 | $0.99 | one-time |
| Premium Timer Sound 4 | $0.99 | one-time |
| Premium Timer 5 | $0.99 | one-time |
| Premium Timer Sound Pack | $1.99 | one-time |


### B3 Runtime

[App page](https://appshunter.io/ios/app/b3-runtime/id6479606796)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 4Time free?

4Time costs $0.99, and also offers in-app purchases.

### Is B3 Runtime free?

B3 Runtime is free to download, with no in-app purchases.

### Do 4Time or B3 Runtime have ads?

Neither 4Time nor B3 Runtime shows ads.

### Which is updated more often, 4Time or B3 Runtime?

4Time ships an update every 3 months, and B3 Runtime every 3 weeks. Most recently, 4Time was updated on October 13, 2026 and B3 Runtime on October 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.*