ChiMarathon vs IM Tri Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ChiMarathon
Prepare for the Bank of America Chicago Marathon with this comprehensive resource. Track runners live, view athlete profiles, and access real-time weather and course maps. Spectators can send digital cheers to be displayed on the course.
- Live runner tracking
- Athlete profiles
- Live broadcast streaming
- Real-time weather
- Interactive course map
- Digital cheer submission
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The Bank of America Chicago Marathon App, Powered by Tata Consultancy Services is the perfect resource to prepare for the 2026 Bank of America Chicago Marathon. Whether you’re running or spectating, the free mobile app includes everything you’ll need to be prepared for a great race week experience. The app features unlimited live race day runner tracking, professional athlete profiles, live broadcast streaming, real-time weather, an interactive course map, participant bib share and more!
IM Tri Tracker
Track and rank your triathlon race splits, including swim, bike, and run times, along with transitions and overall performance. Compare your results against other finishers and monitor your personal bests and progression over time. Access a comprehensive library of race-day tips and store race notes for each event.
- Track swim, T1, bike, T2, and run splits
- Rank legs by time and compare to finishers
- Monitor personal bests and progression
- Store race notes and conditions
- Access race-day tips library
- View field size and percentile ranks
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IM Tri Tracker finds your published full and half-distance triathlon results by name and ranks each swim, bike and run split against the field from that race. Results, splits, rankings and personal bests are free, with no account and no subscription. FIND YOUR RACES • Search the name you registered with to find your supported published results • Each result shows swim, T1, bike, T2, run and finish times, bib number, division place and overall rank • Your claimed races stay together in one Locker SPLIT RANKINGS • Rank your races by swim, bike, run, transitions or finish time • Full-distance and half-distance races are ranked separately • Each split shows its rank, the field size and your percentile in that race PERSONAL BESTS • Personal bests and progression across your races RACE NOTES • Notes on conditions, nutrition and gear, kept with the result they belong to EXPLORE • Look up another athlete's full and half-distance race history without changing your own Locker TIPS FROM PATTIE • A library of filmed race-day tips • Ask Pattie points you to the right clip for what you are working on PRIVACY • No account, no ads and no cross-app tracking • Your Locker, race notes and recently viewed athletes stay on your iPhone • Name searches go to the timing service that publishes the results FREE AND RACE BOOK Everything above is free and does not expire. Race Book is an optional one-time purchase with no subscription, and you can preview it before you buy. It adds: • Like-for-like comparisons between races • Unlimited PDF and image exports of your race history, with splits, career stats and optional notes IM Tri Tracker is independent. It is not affiliated with, endorsed by or sponsored by any race organizer or timing company. Results are shown as published by each event's timer. Terms (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://jackwallner.com/ios/ironman/privacy-policy.html
Screenshots
Verdict
The clearest difference is review sentiment: IM Tri Tracker at 100% against ChiMarathon's 33%. IM Tri Tracker also leads on rating (5.0 vs 2.5). ChiMarathon's advantage is in-app purchases (none vs 1) and ratings volume (45 vs 3). On price, update cadence, ads 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
Both are free to download. IM Tri Tracker sells 1 one-off in-app purchase. ChiMarathon asks for nothing beyond the download.
IM Tri Tracker holds the better App Store score, 5.0 against 2.5. That said, the two scores are not equally well evidenced: ChiMarathon has 45 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 33% of ChiMarathon's written reviews are positive against 100% of IM Tri Tracker's.
ChiMarathon ships an update every 2 weeks, IM Tri Tracker weekly. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.
| Parameter | ChiMarathon | IM Tri Tracker |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (45 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 32.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 45 — better | 3 |
| Update frequency | Every 2 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone | iPhone |
| Requires iOS | 18.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 112 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Tata Consultancy Services | Jack Wallner |
Customer experience
ChiMarathon
IM Tri Tracker
Bugs and requests
ChiMarathon
Reported bugs
59 issues- Mile markers inconsistent
- Map shows water stations for runners
- Units displayed incorrectly (miles vs km)
- App doesn't update times
- Links in map don't work
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- Won't connect to server
- X-axis incorrect units (miles vs km)
- Y-axis decreasing (unhelpful visualization)
- Race day timer shows race is a day away
- Cannot track racer, times out
- Tracking feature not trustworthy
- No way to switch to miles
- Incredibly glitchy
- No mile markers this year
- Pace graph based on 100 seconds
- Needs to track distance by miles
- Default to kilometers with no option to change
- Map not updated on race day
- Worthless app
- No buttons work
- Cannot enter bib number
- Live data shows server error
- No way for runners to claim profile
- Mixes up miles and kilometers
- Pace graph based on minutes/100 seconds
- App defaults in metrics
- No ability to change pace to min/mile
- Leaderboard defaults to male runners
- App stalled, tracking didn't work
- Tracking search bar doesn't work
- App missed me at starting line and 15k mark
- App reported time over an hour slower
- Time still wrong on app after 2 days
- Tracking isn't real-time, only check-in points
- App insists on zooming back to user location
- Tracking experience disappointing
- Cannot connect to server
- Rubbish app
- Worst site for tracking a runner
- App could never connect to server
- Difficult to track multiple friends due to lack of splits
- App splits calculated in kilometers
- Doing calculations for miles/kilometers is not a good experience
- Can't track runners on map
- Useless app
- Only gives times at 10k, 20k, 30k and finish
- Impossible to track individual runner
- Missed our runner
- Doesn't work
- App freezing
- Cannot track anyone
- Cannot connect to server
- Map doesn't work
- Program stalled
- Tracking didn't work
- Search bar doesn't work
- App missed runner at start and 15k
- App reported time over an hour slower
- Time still wrong on app after 2 days
Requested features
31 requests- Geared towards spectators for map tracking
- Display mile markers clearly
- Option to switch between miles and kilometers
- Update app design to be more modern
- Real-time updates and alerts for runners
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- Add mile markers
- Option to convert kilometers to miles
- Add spectator viewing route feature
- Preload anticipated pace for recommended viewing points
- Allow users to switch between miles and kilometers
- Add option to change pace to minutes per mile
- Allow users to change pace to minutes per mile
- Add cheer cards feature
- Improve customer support
- Add automatic updates like Boston's app
- Update map for current year's event
- Fix tracking for runners
- Add a toggle or default to miles
- Provide a single click tracking link
- Add splits every 5 miles
- Streamline measurements (miles and kilometers)
- Allow viewing splits in miles or kilometers
- Add spectator 'viewing route' feature
- Add ability to send real-time messages to runners
- Add ability for runners to access messages easily
- Fix search bar for runner information
- Add end of race picture at finish line
- Add feature to track self for PR
- Add option to default to female runners on leaderboards
- Improve GPS tracking data
- Make tracking real-time
IM Tri Tracker
Not enough reviews yet to summarise bugs or requests.
In-app purchases
ChiMarathon
No in-app purchases
IM Tri Tracker
- Race Book$9.99
Questions
Is ChiMarathon free?
Is IM Tri Tracker free?
Which has better reviews, ChiMarathon or IM Tri Tracker?
Do ChiMarathon or IM Tri Tracker have ads?
Which is updated more often, ChiMarathon or IM Tri Tracker?
Other comparisons
