# ChiMarathon > Official app for the Bank of America Chicago Marathon, offering race preparation and live event features. (iPhone/iPad app by Tata America International Corporation.) - Source: https://appshunter.io/ios/app/chimarathon/id718145625 (this page in markdown: same URL + `.md`) - Developer: [Tata America International Corporation](https://appshunter.io/developer/467615204) - Category: Sports - Price: Free - Age rating: 4+ - Requires: iOS 16.0 · 76 MB - Languages: English - Released: 2013-10-08 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/chimarathon/id718145625/reviews.md ## What is ChiMarathon? The Bank of America Chicago Marathon App, Powered by Tata Consultancy Services is the perfect resource to prepare for the 2025 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 2025 Official Race 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. Fans can submit a digital cheer through the App for the chance for your message to be displayed on the Bank of America Chicago Marathon course as your participant goes by. Visit the “Cheer” page in the app to submit your message. ## Key features - Live runner tracking - Athlete profiles - Live broadcast streaming - Real-time weather - Interactive course map - Digital cheer submission ## Recent user reviews (10 of 72) All indexed reviews: https://appshunter.io/ios/app/chimarathon/id718145625/reviews.md ### 5/5 — Great app *2025-10-13, version 13.1* Used the app in the U.K. to follow my daughter and her partner. It was excellent. Many thanks ### 1/5 — Awful app *2025-10-13* The map tracker should be geared towards spectators. The mile markers would sometimes appear and it was hard to find what mile our runner was at. The map showed the water stations… I’m sorry but runner is watching the map while they run. It needs to be geared towards the spectators trying to find their specific runner. ### 5/5 — 2025 marathon *2025-10-12* The app worked amazingly was able to track my runner the entire time ### 3/5 — Distance is labeled as miles but it shows as km *2025-10-12* When tracking runners on the graph tab, the units should as kilometers (42 km for marathon) but the label shows as distance (mi). Good to update. ### 1/5 — Horrible *2025-10-12* Horrible. App doesn’t update times Links in map doesn’t work. Basically a waste of time ### 1/5 — Won’t connect to server *2025-10-12* Terrible app, doesn’t even work. ### 2/5 — Runners details map is poorly executed. *2025-10-12* Runners details map is poorly executed. The x axis has the incorrect units and says miles when the graph is actually is tracking kilometers. Also why is the y axis decreasing? This is not helpful for the visualization and outside of convention. Who made this? Where was the QA? ### 1/5 — Useless app *2025-10-12* On race day still shows timer indicating the race is a day away. Can’t track racer - times out every time I put in their bib number. ### 2/5 — What year is it? *2025-10-12, version 13.1* This app looks like it was made in 2013. Is this really what TCS wants to show potential customers? ### 1/5 — Why? *2025-10-11* Why make me update? I downloaded the app yesterday ## Frequently asked questions about ChiMarathon ### What does the ChiMarathon app do? The app serves as a comprehensive resource for the Bank of America Chicago Marathon. It provides tools for both runners and spectators to prepare for and experience race week. Key features include live runner tracking, athlete profiles, and interactive course maps. ### What are the main features of the app? The app offers unlimited live race day runner tracking, profiles of professional athletes, live broadcast streaming, and real-time weather updates. It also includes an interactive course map and a feature to share participant bibs. Spectators can submit digital cheers to be displayed on the course. ### Is the ChiMarathon app free to use? Yes, the app is completely free to download and use. There are no associated costs for accessing its features, including live tracking, race information, and the ability to send digital cheers. ### Who is this app designed for? This app is designed for anyone involved with the Bank of America Chicago Marathon. This includes runners participating in the event, as well as friends, family, and fans who will be spectating or supporting the runners. ### How can I send a cheer to a runner? To send a digital cheer, navigate to the 'Cheer' page within the app. You can submit your message there, and it may be displayed on the Bank of America Chicago Marathon course for participants to see as they run by. ## Version history (last 5 releases) ### 13.1 — 2025-10-10 Minor bug fixes ### 13.0 — 2025-10-03 UI Enhancements ### 12.0 — 2024-09-30 Download the 2024 Bank of America Chicago Marathon App, Powered by TCS. ### 11.2 — 2023-10-06 Minor bug fixes ### 11.1 — 2023-10-04 UI changes ## More apps by Tata America International Corporation - [2024 United Airlines NYC Half](https://appshunter.io/ios/app/2024-united-airlines-nyc-half/id727109676) - [2023 United Airlines NYC Half](https://appshunter.io/ios/app/2023-united-airlines-nyc-half/id829606194) - [TCS World 10K Bengaluru 2024](https://appshunter.io/ios/app/tcs-world-10k-bengaluru-2024/id858445833) - [TCS GoSafe Mobile](https://appshunter.io/ios/app/tcs-gosafe-mobile/id920725915) - [TCS Clark Animo 2025](https://appshunter.io/ios/app/tcs-clark-animo-2025/id1086119160) All apps by Tata America International Corporation: https://appshunter.io/developer/467615204 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*