Comparison

Comrades vs Jam Timer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Comrades

Follow the world's greatest Ultra Marathon with real-time updates on participant times, paces, and places. Track multiple runners, view interactive course maps, and receive push notifications for progress. Stay informed with event details and leaderboards.

Highlights
  • Real-time participant tracking
  • Interactive course map
  • Live map tracking
  • Multi-participant tracking
  • Push notifications
  • Live leaderboards
  • Social sharing
Read full description

This is the official Comrades Marathon App, containing the latest updates on the world’s greatest Ultra Marathon. App Highlights: • Participant times, paces, estimates, and places in real-time; • Interactive Course Map & Live Map Tracking; • Easy tracking of multiple participants at the same time; • Push Notifications as progress is made on course; • Event Info and Messaging; • Live Leaderboards; • Social Sharing;

About

Jam Timer

This app provides precise timing control for roller derby officials, offering built-in configurations for various leagues and professional timing features. It's designed for one-handed operation with a clear display and haptic feedback, working completely offline.

Highlights
  • Built-in game configurations
  • Professional timing control
  • Designed for officials
  • Game management features
  • Offline operation
Features
Currently charting
Read full description

RollTimer: The Professional Jam Timer for Roller Derby Officials Designed specifically for the jam-timer position, RollTimer eliminates the need for traditional stopwatches and provides precise timing control for all roller derby formats. Whether you're officiating WFTDA sanctioned bouts, RDCL tournaments, or OSDA games, RollTimer has the configuration you need. Key Features: Built-in Game Configurations WFTDA standard timing rules RDCL tournament settings OSDA game format Custom configurations for scrimmages and special events Professional Timing Control Precise jam timing with lead jammer call-off Period clock management Lineup time tracking Team and official timeout timers Automatic vibration warnings at configurable intervals Designed for Officials Large buttons for one-handed operation Clear, high-contrast display visible from across the track Haptic feedback for critical timing events Works completely offline - no internet required Game Management Track team scores and timeouts Monitor official reviews remaining Complete game history and statistics Export game data for league records Perfect for: NSO jam timers at sanctioned bouts Tournament directors managing multiple games League officials during practice scrimmages Coaches timing drills and scenarios Referees needing backup timing Why Choose RollTimer: Unlike generic stopwatch apps, RollTimer understands roller derby. Every feature is built around the specific needs of derby timing, from the 30-second lineup to the 2-minute jam clock. The large, accessible interface ensures you can focus on the game, not fumbling with tiny buttons. Trusted by officials across leagues worldwide, RollTimer brings professional-grade timing to your mobile device. Download now and experience the difference purpose-built software makes. Offline Operation: RollTimer works completely offline with no network requirements, perfect for venues with poor connectivity. All game data is stored locally on your device for maximum reliability.

Screenshots

Comrades4 screens
Jam Timer4 screens

Verdict

The call

The clearest difference is price: Comrades at Free against Jam Timer's $3.99. Comrades also leads on rating (4.9 vs 1.0) and ratings volume (55 vs 1). Jam Timer's advantage is chart position (#188 vs unranked). On ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Comrades is free to download; Jam Timer costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Comrades holds the better App Store score, 4.9 against 1.0. That said, the two scores are not equally well evidenced: Comrades has 55 ratings behind it against 1, so its average is the more settled of the two.

Scorecard6 real differences · 5 level
Comrades versus Jam Timer: the parameters behind the verdict, then further details
ParameterComradesJam Timer
PriceFree — better$3.99
Rating4.9 (55 ratings) — better1.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings55 — better1
Update frequencyEvery 11 months—
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank—#188 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.6
Further details — not scored
Size20 MB19 MB
Age rating4+4+
DeveloperDilltree IncDLY

Customer experience

Comrades

All ratings55 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews57 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Jam Timer

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Comrades

Reported bugs

3 issues
  • Difficulty seeing elevation on map
  • Slight lag in updates
  • Can't easily switch between general results and followed friends

Requested features

11 requests
  • More visuals of athletes
  • Improve accuracy of estimated time
  • Add km marker splits
  • Show kilometres at key route points
  • Easier switching between general results and followed friends
Show 6 more
  • History of runner's previous times
  • Layout of end-stadium with club tents
  • Ability to live stream
  • Live video cams at major cutoff points
  • Automatically show user's location when tracking
  • Hybrid satellite view

Jam Timer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Comrades

No in-app purchases

None

Jam Timer

No in-app purchases

Questions

Is Comrades free?
Comrades is free to download, with no in-app purchases.
Is Jam Timer free?
Jam Timer costs $3.99, with no in-app purchases.
Which has better reviews, Comrades or Jam Timer?
Comrades is rated higher. Comrades averages 4.9 out of 5 from 55 ratings, while Jam Timer averages 1.0 from 1 ratings.
Do Comrades or Jam Timer have ads?
Neither Comrades nor Jam Timer shows ads.

Other comparisons