JamTimer vs Seattle Kraken
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JamTimer
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.
- Roller derby jam-timing
- WFTDA, RDCL, OSDA configurations
- Custom game settings
- One-hand operation
- Vibrate warnings
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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.
Seattle Kraken
Stay connected with the Seattle Kraken. Get real-time game updates, player info, and access your tickets. Discover all events at Climate Pledge Arena, including concerts and other sports.
- Player information
- Real-time game updates and highlights
- Ticket access, transfer, and selling
- Free public transit passes
- Parking reservations
- Climate Pledge Arena event discovery
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- Get to know the Seattle Kraken players - Follow the action with highlights, score updates, statistics, and insider info realtime throughout every Kraken game - Access, transfer, and sell tickets to all Kraken and Climate Pledge Arena events - Redeem free public transit passes to all Seattle Kraken games - Reserve parking for all events at Climate Pledge Arena - Discover concerts, comedy shows, other sports, and all additional events coming to Climate Pledge Arena
Screenshots
Verdict
The clearest difference is review sentiment: JamTimer at 94% against Seattle Kraken's 31%. JamTimer also leads on rating (5.0 vs 4.7) and iOS requirement (13.0 vs 17.0). Seattle Kraken's advantage is price (Free vs $1.99) and update cadence (every 2 weeks vs every 5 months). 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
Seattle Kraken is free to download; JamTimer costs $1.99 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 4.7. That said, the two scores are not equally well evidenced: Seattle Kraken has 2.5K ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 94% of JamTimer's written reviews are positive against 31% of Seattle Kraken's.
JamTimer ships an update every 5 months, Seattle Kraken every 2 weeks. The most recent releases landed on October 19, 2026 and October 21, 2026 respectively.
| Parameter | JamTimer | Seattle Kraken |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 5.0 (9 ratings) — better | 4.7 (2.5K ratings) |
| Positive reviews | 93.8% of reviews — better | 31.1% of reviews |
| Number of ratings | 9 | 2.5K — better |
| Update frequency | Every 5 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | — | #135 — better |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 1 MB | 131 MB |
| Age rating | 4+ | 4+ |
| Developer | Fearless Code | Seattle Hockey Partners, LLC |
Customer experience
JamTimer
Seattle Kraken
Bugs and requests
JamTimer
Not enough reviews yet to summarise bugs or requests.
Seattle Kraken
Reported bugs
5 issues- Ticketmaster login not working
- Ticket access and redemption issues
- Notifications not working
- Parking purchase option broken
- Incompatible with older iOS devices
Requested features
4 requests- Dark mode option
- Player bios and stats integration
- Improved transit pass functionality
- Better in-arena experience (food locator, beer finder, etc.)
In-app purchases
JamTimer
No in-app purchases
Seattle Kraken
No in-app purchases
Questions
Is JamTimer free?
Is Seattle Kraken free?
Which has better reviews, JamTimer or Seattle Kraken?
Do JamTimer or Seattle Kraken have ads?
Which is updated more often, JamTimer or Seattle Kraken?
Other comparisons
