# Jamzo

> Jamzo (iPhone/iPad app by Charles Robart.)

- Source: https://appshunter.io/ios/app/jamzo/id6753089065 (this page in markdown: same URL + `.md`)
- Developer: [Charles Robart](https://appshunter.io/developer/1842432470)
- Category: Sports, Productivity
- Price: Free
- Age rating: 17+
- Requires: iOS 15.1 · 44 MB
- Languages: American English
- Released: 2025-10-01
- Data updated: 2026-09-03
- User reviews in markdown: https://appshunter.io/ios/app/jamzo/id6753089065/reviews.md

## What is Jamzo?

Jamzo brings together essential tools to support teams and officials during roller derby games.

NEW — LINEUP & PENALTY TRACKER

Easily track lineups and penalties throughout the game:

• Record the skaters participating in each jam  
• Identify jammers, pivots, and blockers  
• Assign penalties and track Penalty Box visits  
• View the game history in real time  
• Work independently or with another operator on separate devices  
• Access a complete game recap  
• Export game data for review or archiving  

SCOREKEEPER

• Record the score jam by jam  
• Follow the game’s progress in real time  
• Choose between solo and dual modes  
• View and export the game recap  

TIMING TOOLS

• Jam Timer: track jams, intervals, and periods  
• Penalty Timer: time Penalty Box visits  
• Blocker Timer: manage blocker penalties  
• Jammer Timer: manage jammer penalties  
• Dual Timer: use two timers on a single screen  

TEAM DIRECTORY

• Discover roller derby teams  
• View their city and country  
• Access their social media pages  

RULES QUIZ

• Test your roller derby knowledge  
• Choose your difficulty level  
• Learn and review the rules in a fun way  

Jamzo features a clear, responsive interface designed to remain easy to use in real game conditions.


## Version history (last 5 releases)

### 1.3.1 — 2026-08-29

Secure account creation and sign-in for Head Games
Match access protected by a private code
Improved Lineup Tracker in solo and duo modes
Match sheets and statistics export in Excel format
New Head Game recap
Expulsion and suspension forms
Privacy, stability, and general interface improvements

### 1.3.0 — 2026-08-08

NEW — LINEUP & PENALTY TRACKER

Easily track lineups and penalties throughout the game:

• Record the skaters participating in each jam  
• Identify jammers, pivots, and blockers  
• Assign penalties and track Penalty Box visits  
• View the game history in real time  
• Work independently or with another operator on separate devices  
• Access a complete game recap  
• Export game data for review or archiving

### 1.2.0 — 2026-06-22

– New: Scorekeeper Tool
* A dedicated scorekeeping solution designed for roller derby games:
* Track scores throughout the game
* Record each jam quickly and accurately
* Simple interface optimized for NSOs
* Reduce paperwork and keep game information organized

### 1.1.9 — 2026-05-01

This version brings a refreshed experience and more content to explore:

* Redesigned Home Page
    A cleaner and more intuitive interface to access all your tools faster.
* New Teams Page
    Discover all roller derby teams with key information for each:
    city, country, and social media links — everything in one place.

### 1.1.8 — 2026-03-22

New Quiz mode: test and improve your roller derby rules knowledge.

## Apps similar to Jamzo

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [JamReady](https://appshunter.io/ios/app/jamready/id6759724475) | — | Free | Sports |
| [Penalty Box Timer](https://appshunter.io/ios/app/penalty-box-timer/id6461521489) | 3.0 (2) | $2.99 | Sports |
| [East Carolina Football App](https://appshunter.io/ios/app/east-carolina-football-app/id1477075619) | 4.8 (16) | Free | Sports |
| [Putt Buddy](https://appshunter.io/ios/app/putt-buddy/id6443782152) | 2.9 (10) | Free | Sports |
| [Trackkarma](https://appshunter.io/ios/app/trackkarma/id6473739561) | 5.0 (1) | Free | Sports |
| [Jam Timer - Roller Derby Timer](https://appshunter.io/ios/app/jam-timer-roller-derby-timer/id6747149650) | 1.0 (1) | $3.99 | Sports |

## Related topics

[roller derby](https://appshunter.io/ios/topics/roller-derby)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-03.*