# JAWKU vs Perfect Stopwatch

The clearest difference is rating: Perfect Stopwatch at 4.6 against JAWKU's 4.0. Perfect Stopwatch also leads on update cadence (every 2 weeks vs every 2 months) and review sentiment (86% vs 68%). JAWKU's advantage is in-app purchases (none vs 5) and ads (none vs shown). On price, ratings volume, device support and iOS requirement there is nothing between them.

Both are free to download. Perfect Stopwatch sells 5 in-app purchases, starting at $19.99 per 3 months. JAWKU asks for nothing beyond the download.

Perfect Stopwatch holds the better App Store score, 4.6 against 4.0. Both are backed by a comparable volume of ratings — 244 and 192 respectively. Written reviews point the same way: 68% of JAWKU's written reviews are positive against 86% of Perfect Stopwatch's.

JAWKU ships an update every 2 months, Perfect Stopwatch every 2 weeks. The most recent releases landed on August 2, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | JAWKU | Perfect Stopwatch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (244 ratings)](https://appshunter.io/ios/app/jawku/id1184083672/reviews) | **[4.6 (192 ratings)](https://appshunter.io/ios/app/perfect-stopwatch/id1598567322/reviews)** |
| Number of ratings | **244** | 192 |
| Positive reviews | 67.7% of reviews | **86.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 31 MB | 68 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Brian Frohlich](https://appshunter.io/developer/1529541549) | [Appcano LLC](https://appshunter.io/developer/1626754199) |

## 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


### Perfect Stopwatch

[App page](https://appshunter.io/ios/app/perfect-stopwatch/id1598567322)

Accurately time sprints using video analysis. This app provides precise sprint measurements, eliminating the inaccuracies of manual stopwatches and expensive laser systems. Ideal for athletes and coaches seeking verifiable performance data.

**Highlights:** Laser-like sprint accuracy, Video analysis for timing, Precise start and finish line detection, Record unlimited sprint videos, Tutorial for easy use, Alternative to manual stopwatches

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Perfect Stopwatch 3 Months | $19.99 | per 3 months |
| Unlock All Features | $19.99 | per year |
| Perfect Stopwatch Individual | $29.99 | one-time |
| Perfect Stopwatch Group | $129.99 | one-time |
| Perfect Stopwatch Team | $399.99 | one-time |

**What reviewers like**

- 👍 Great for timing sprints
- 👍 Accurate for 40-yard dash
- 👍 Good for self-timing
- 👍 Provides proof of times
- 👍 Affordable compared to others

**What reviewers complain about**

- 🐛 Videos not in frame
- 🐛 Inaccurate times reported
- 🐛 Landscape videos crop to portrait
- 🐛 Over-simplified interface (recent update)
- 🐛 High memory usage

**Reported bugs**

- Videos uploaded not completely in frame
- Landscape videos crop to portrait
- App requires restart while editing
- Limited video uploads for paid users

**Requested features**

- Allow landscape video uploads without cropping
- Revert to older, more comfortable interface
- Clarify data storage handling


## Frequently asked questions

### Is JAWKU free?

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

### Is Perfect Stopwatch free?

Perfect Stopwatch is free to download, with in-app purchases available.

### Which has better reviews, JAWKU or Perfect Stopwatch?

Perfect Stopwatch is rated higher. JAWKU averages 4.0 out of 5 from 244 ratings, while Perfect Stopwatch averages 4.6 from 192 ratings.

### Do JAWKU or Perfect Stopwatch have ads?

Perfect Stopwatch shows ads; JAWKU does not.

### Which is updated more often, JAWKU or Perfect Stopwatch?

JAWKU ships an update every 2 months, and Perfect Stopwatch every 2 weeks. Most recently, JAWKU was updated on August 2, 2026 and Perfect Stopwatch on September 23, 2026.

---

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