JamTimer vs Sporfie
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
Read full descriptionHide full 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.
Sporfie
Stream live sports events from your smartphone or camera for free. Friends and family can watch without an account and save instant highlights. Add real-time scores and replay full games from the cloud.
- Live streaming from smartphone/camera
- Free viewing for friends and family
- No viewer login required
- Instant highlight creation
- Real-time score updates
- Cloud-based full-game replay
- Private event PIN codes
Read full descriptionHide full description
Using just a smartphone, a GoPro or Mevo camera you can live stream your games, practices and more, allowing family and friends to join and watch live at NO cost to the viewer. Plus, add multiple smartphone cameras and everyone at the game can save highlights just after they happen, replay them seconds later and share them instantly. • No Cost for Viewers and No Login Required: Friends and family can watch your games live for no fee. In fact, they don’t even need to create an account! Share a link to your team’s landing page, so anyone can quickly watch your games or practice sessions. • Private Events: Add a pin code to your events to keep your games or practices restricted to the audience you want, whether that’s just parents, coaches or players. • Add the Score in Real-Time: With our crowd-sourced scoreboard feature, parents can update the score throughout the game. The scoreboard is shown on the live feed, on the individual clips and on the game replay. • Instant Highlights During the Game and After: With just the press of a button, Sporfie saves your highlights AFTER you’ve seen it happen, whether you’re at the game from the sidelines, watching the live stream remotely, or watching the full-game replay. • Start Streaming with Just Your Mobile Device: With just one smartphone camera filming the action, anyone who joins can enjoy the game without having to film and still save their own personal highlights instantly. • Replay the Full-Game from the Cloud: The entire game’s footage is saved in the Cloud, so you can replay, save highlights and download the action anytime. Also available: Want to capture hands-free? Using the Sporfie CLIPR button, you can now leave your smartphone in your pocket or bag and wirelessly capture the action in one click!
Screenshots
Verdict
The clearest difference is price: Sporfie at Free against JamTimer's $1.99. Sporfie also leads on update cadence (every 3 weeks vs every 5 months) and ratings volume (318 vs 9). JamTimer's advantage is review sentiment (94% vs 67%) and rating (5.0 vs 4.7). On ads and in-app purchases 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
Sporfie 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: Sporfie has 318 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 67% of Sporfie's.
JamTimer ships an update every 5 months, Sporfie every 3 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.
| Parameter | JamTimer | Sporfie |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 5.0 (9 ratings) — better | 4.7 (318 ratings) |
| Positive reviews | 93.8% of reviews — better | 66.7% of reviews |
| Number of ratings | 9 | 318 — better |
| Update frequency | Every 5 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Ad-supported — better |
| Best chart rank | #99 — better | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 1 MB | 231 MB |
| Age rating | 4+ | 4+ |
| Developer | Fearless Code | Nagra USA Inc. |
Customer experience
JamTimer
Sporfie
Bugs and requests
JamTimer
Not enough reviews yet to summarise bugs or requests.
Sporfie
Reported bugs
11 issues- Chrome casting issues
- Videos never load
- App freezes during live stream
- Keeps logging out
- Black screening
Show 6 moreShow fewer
- Skips, freezes, repeats, buffers, pixelates
- App is unintuitive
- App keeps losing connection on Android
- Does not keep users signed in
- Events don't appear unless present
- Create event screen gets stuck, sports don't show
Requested features
3 requests- Make it possible to save videos to phone when offline
- Allow different devices to talk using local WiFi hotspot
- Add business cards with usage directions
In-app purchases
JamTimer
No in-app purchases
Sporfie
No in-app purchases









