---
title: "JamTimer - for roller derby - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "JamTimer is an app designed for the exciting sport of roller derby. Created for the jam-timer position, JamTimer replaces the need for using stopwatches. It has built-in configurations for WTFDA, RDCL"
---

# JamTimer - for roller derby — United States

![JamTimer App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple114/v4/52/05/c9/5205c9d0-762d-9a24-753f-de5d1cf9e877/AppIcon-1x_U007emarketing-0-7-0-85-220.png/434x0w.png)

**Developer:** [Fearless Code](https://apptail.io/developer/fearless-code-ahvc)
**Category:** Sports
**Rating:** 5.0/5 (9 ratings)
**Price:** Free
**Bundle ID:** com.fearlesscode.JamTimer
**Store:** Apple App Store
**Country:** United States
**Version:** 4.2.1 (released 2020-08-24)
**Original Release:** 2011-05-24
**Languages:** Spanish, German, Danish, Finnish, French, English, Italian, Japanese, Dutch, Portuguese, Swedish

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id435346062)
**AppTail Page:** [https://apptail.io/app/jamtimer-for-roller-derby-Dtae/united-states](https://apptail.io/app/jamtimer-for-roller-derby-Dtae/united-states)

## JamTimer Description
JamTimer is an app designed for the exciting sport of roller derby. Created for the jam-timer position, JamTimer replaces the need for using stopwatches. It has built-in configurations for WTFDA, RDCL, or OSDA style games, and can be customized for any type of scrimmage or tournament scenario. 

FEATURES 
- Keep track of all timing related tasks needed in a roller derby game. 
- Built-in support for WFTDA, RDCL, and OSDA game configurations.
- Add custom game configurations (scrimmage or tournaments). 
- Large buttons, conveniently operated with one hand. 
- Vibrate warnings for specific events.

## JamTimer Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource124/v4/3d/3f/2f/3d3f2fcf-ecd0-c7b9-195b-8c6c6d2e339b/cf09beb5-e584-4828-bd34-a16a136c6f3e_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2020-08-11_at_22.32.30.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource124/v4/30/09/c8/3009c81d-8110-9f56-924e-89afdbe974be/9a54f4da-c5f0-4f4f-9b32-f8d3d68e1f1f_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2020-08-11_at_22.32.49.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource114/v4/bf/8b/d0/bf8bd03e-4644-8966-6c1b-cdfd4d07f61c/3838f82b-4de1-49ac-a772-0ea8e17403cd_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2020-08-11_at_22.32.04.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource124/v4/c1/0c/1d/c10c1d01-6600-2691-162a-92108f30695c/9a558e7a-3f58-4921-9edf-baa97dc49696_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2020-08-11_at_22.32.09.png/1242x2688.png)

## JamTimer Rating Breakdown in United States
- 5 stars: 9 (100%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)

## JamTimer Reviews in United States

### ***** "Amazing"
Exactly what a derby girl needs! And reasonably priced too :) this is a great app
-- CrashBandahoot, 2019-01-03

### ***** "Add to Apple Watch?"
I love this app, makes jam timing so easy!  Any chance it will make it onto Apple Watch?
-- Keenysmom, 2018-03-07

### ***** "The best!"
I love this app! So much better then having to fumble with 2 stop watches.
-- Ma Guns, 2017-06-18

### ***** "Yessss!!!!!"
Really great app! Thank you for developing this!
-- student1000000000, 2016-04-24

### ***** "Scrimmage timing"
Thanks for this! Very handy to have!
-- poggersandlagers, 2014-04-04

### ***** "Perfect for scrimmages"
I referee for leagues without a ton of officials, this app (and it’s PenaltyTimer companion) are perfect for short-staffed scrimmages.
-- Laddie, 2014-04-03

### ***** "Jam Timer"
I am no longer juggling stop watches, praying I will push the right button in the right order. This app made easy work of my job. I highly recommend this app for anyone who has the pleasure of jam timing.  It is the best app I ever bought. Thank you!!!!
-- Drbysk8ter, 2012-07-10

### ***** "Must have app for derby"
Love, love, love this app. I use it during practice as well as bouts. Makes timekeeping easy, anyone who can use an iPhone can timekeep.
-- Miso Nasty, 2012-01-17

### ***** "Another fantastic derby app!"
Ok, Fearless Code has now delivered three critical, great, stable, useful roller derby applications that I have my NSO team use every bout. Totally worth every penny. Beat part of Jam Timer is it accounts for the few second ticking away when you select Timeout and unsure whether it's team or official. It then automatically subtracts as necessary. They really pay attention to the details of what these apps need to deliver.  -Dr. Psycho Cub (GCDG)
-- PBXBear, 2011-06-16

[View all JamTimer reviews and detailed analytics on AppTail](https://apptail.io/account/signup?utm_campaign=ai-crawl&utm_content=reviews)


## JamTimer Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Paid | United States | Sports | #24 |
| Top Paid | Mexico | Sports | #50 |
| Top Paid | Chile | Sports | #58 |
| Top Paid | Argentina | Sports | #79 |
| Top Paid | Australia | Sports | #89 |
| Top Paid | New Zealand | Sports | #102 |
| Top Paid | Colombia | Sports | #105 |
| Top Paid | South Africa | Sports | #108 |
| Top Paid | United Kingdom | Sports | #122 |
| Top Paid | Brazil | Sports | #123 |
| Top Paid | Canada | Sports | #131 |
| Top Paid | Peru | Sports | #152 |
| Top Paid | Norway | Sports | #152 |
| Top Paid | Switzerland | Sports | #198 |
| Top Paid | Vietnam | Sports | #240 |

## JamTimer Discovered Keywords
- jamtimer
- for roller derby

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- [Heja](https://apptail.io/app/heja-rlk/united-states)
- [Stack Team App](https://apptail.io/app/stack-team-app-pKH/united-states)
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- [Sporfie](https://apptail.io/app/sporfie-tuxb/united-states)
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- [Trackkarma](https://apptail.io/app/trackkarma-lQXo/united-states)
- [Penalty Box Timer](https://apptail.io/app/penalty-box-timer-OOcp/united-states)
- [Penalty Timer - Roller Derby](https://apptail.io/app/penalty-timer-roller-derby-djSv/united-states)
- [Jam Timer - Roller Derby Timer](https://apptail.io/app/jam-timer-roller-derby-timer-qmSv/united-states)

## JamTimer Available In
- [United States](https://apptail.io/app/jamtimer-for-roller-derby-Dtae/united-states)
- [Australia](https://apptail.io/app/jamtimer-for-roller-derby-Dtae/australia)
- [Canada](https://apptail.io/app/jamtimer-for-roller-derby-Dtae/canada)
- [New Zealand](https://apptail.io/app/jamtimer-for-roller-derby-Dtae/new-zealand)
- [Chile](https://apptail.io/app/jamtimer-for-roller-derby-Dtae/chile)
- [Argentina](https://apptail.io/app/jamtimer-for-roller-derby-Dtae/argentina)
- [Mexico](https://apptail.io/app/jamtimer-for-roller-derby-Dtae/mexico)

---

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