# JamTimer vs Penalty Timer

The clearest difference is review sentiment: JamTimer at 94% against Penalty Timer's 0%. JamTimer also leads on rating (5.0 vs 1.0) and price ($1.99 vs $3.99). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

JamTimer costs $1.99 and Penalty Timer $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

JamTimer holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 9 and 2 respectively. Written reviews point the same way: 94% of JamTimer's written reviews are positive against 0% of Penalty Timer's.

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on October 3, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | JamTimer | Penalty Timer |
| --- | --- | --- |
| Price | **$1.99** | $3.99 |
| Rating | **[5.0 (9 ratings)](https://appshunter.io/ios/app/jamtimer-for-roller-derby/id435346062/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/penalty-timer-roller-derby/id6747129159/reviews) |
| Number of ratings | **9** | 2 |
| Positive reviews | **93.8% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | Every 5 months |
| Monetization | Paid | Paid |
| Size | 1 MB | 18 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Fearless Code](https://appshunter.io/developer/312416741) | [Sebastin Michael](https://appshunter.io/developer/1224523462) |

## What reviewers say

### JamTimer

[App page](https://appshunter.io/ios/app/jamtimer-for-roller-derby/id435346062)

This app is a dedicated tool for roller derby jam-timers, replacing traditional stopwatches. It offers pre-set configurations for major leagues and allows for custom settings for any game scenario. Large buttons and vibration alerts ensure easy operation during fast-paced matches.

**Highlights:** Roller derby jam-timing, WFTDA, RDCL, OSDA configurations, Custom game settings, One-hand operation, Vibrate warnings

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

**In-app purchases:** none


### Penalty Timer

[App page](https://appshunter.io/ios/app/penalty-timer-roller-derby/id6747129159)

This app provides precise penalty timing for roller derby officials and coaches. It features WFTDA rule compliance, offline functionality, and customizable settings for various game scenarios. Designed by derby enthusiasts, it ensures reliable timing without internet or ads.

**Highlights:** WFTDA rule-compliant penalty codes, Offline functionality, One-tap timer management, Customizable team colors, Flexible timer configurations, 10-second warning alerts

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

**In-app purchases:** none


## Frequently asked questions

### Is JamTimer free?

JamTimer costs $1.99, with no in-app purchases.

### Is Penalty Timer free?

Penalty Timer costs $3.99, with no in-app purchases.

### Which has better reviews, JamTimer or Penalty Timer?

JamTimer is rated higher. JamTimer averages 5.0 out of 5 from 9 ratings, while Penalty Timer averages 1.0 from 2 ratings.

### Do JamTimer or Penalty Timer have ads?

Neither JamTimer nor Penalty Timer shows ads.

### Which is updated more often, JamTimer or Penalty Timer?

JamTimer ships an update every 5 months, and Penalty Timer every 5 months. Most recently, JamTimer was updated on October 3, 2026 and Penalty Timer on October 2, 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.*