# JAWKU vs 40X

The clearest difference is rating: 40X at 4.5 against JAWKU's 4.0. 40X also leads on review sentiment (100% vs 68%) and iOS requirement (13.6 vs 15.6). JAWKU's advantage is ratings volume (244 vs 6) and update cadence (every 2 months vs every 7 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

40X holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: JAWKU has 244 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 68% of JAWKU's written reviews are positive against 100% of 40X's.

JAWKU ships an update every 2 months, 40X every 7 months. The most recent releases landed on October 4, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | JAWKU | 40X |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (244 ratings)](https://appshunter.io/ios/app/jawku/id1184083672/reviews) | **[4.5 (6 ratings)](https://appshunter.io/ios/app/40x/id1546251256/reviews)** |
| Number of ratings | **244** | 6 |
| Positive reviews | 67.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Free | Free |
| Size | 31 MB | 18 MB |
| Requires iOS | 15.6 | **13.6** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Brian Frohlich](https://appshunter.io/developer/1529541549) | [FOOTBALL LIMITED, LC](https://appshunter.io/developer/1546251258) |

## What reviewers say

### JAWKU

[App page](https://appshunter.io/ios/app/jawku/id1184083672)

This app measures athletic performance metrics like speed, agility, and reaction time with a wearable sensor. It allows athletes to track progress, visualize improvements, and access training content to enhance their performance.

**Highlights:** Measure sprint speed, Measure agility drills, Measure vertical jump height, Measure reaction time, Track performance history, Visualize personal records, Access training content

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Portable and easy to set up
- 📊 Accurate timing comparable to expensive laser gates
- 💰 Cost-effective alternative to multi-thousand dollar systems
- 📱 Requires only phone and sensor
- 🎯 Versatile for multiple drill types (40yd dash, 5-10-5, vertical jump)

**What reviewers complain about**

- 🐛 Unreliable recording of times
- 📡 Bluetooth connectivity issues at longer ranges
- ❌ Fails on distances beyond 40 yards
- 🚫 Interference from people walking in front of camera
- ⚙️ Clunky and unintuitive interface

**Reported bugs**

- Sensor disconnects at longer ranges (100+ meters)
- Times not recorded despite successful setup
- Audible mode not working on iPhone 13
- Jump clip registration fails
- Device won't charge or pair

**Requested features**

- Multi-athlete simultaneous timing capability
- Continuous video recording with manual time selection
- Better documentation and instructional videos
- Improved app updates and maintenance
- Better Bluetooth range extension


### 40X

[App page](https://appshunter.io/ios/app/40x/id1546251256)

Log and track your sports statistics and progress. Share your results and compete with others on a leaderboard. This app helps you monitor your performance and see how you stack up.

**Highlights:** Track statistical progress, Log results, Share performance, Leaderboard competition, View options

**In-app purchases:** none


## Frequently asked questions

### Is JAWKU free?

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

### Is 40X free?

40X is free to download, with no in-app purchases.

### Which has better reviews, JAWKU or 40X?

40X is rated higher. JAWKU averages 4.0 out of 5 from 244 ratings, while 40X averages 4.5 from 6 ratings.

### Do JAWKU or 40X have ads?

Neither JAWKU nor 40X shows ads.

### Which is updated more often, JAWKU or 40X?

JAWKU ships an update every 2 months, and 40X every 7 months. Most recently, JAWKU was updated on October 4, 2026 and 40X on September 30, 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.*