ChiMarathon vs P3R
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
Read full descriptionHide full description
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!
P3R
This app supports users participating in transformative sporting events and exhilarating experiences. It provides tools for tracking runners, accessing course maps, and sharing achievements on social media. Stay informed about event details and view results.
- Runner Tracking
- Course Maps
- Social Media Sharing
- Event Information
- Results
- FAQs
Read full descriptionHide full description
P3R strives to inspire any and all to MOVE with us. We are the innovative engine behind Pittsburgh’s most transformative sporting events and exhilarating experiences that unite. In the P3R app, you'll find: - Runner Tracking - Course Maps - Social Media Sharing - Event Information - Results - FAQs - And More!
Screenshots
Verdict
The clearest difference is review sentiment: P3R at 91% against ChiMarathon's 33%. P3R also leads on rating (4.8 vs 3.5) and ratings volume (227 vs 4). ChiMarathon's advantage is update cadence (every 2 weeks vs every 12 months). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
P3R holds the better App Store score, 4.8 against 3.5. That said, the two scores are not equally well evidenced: P3R has 227 ratings behind it against 4, 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 91% of P3R's.
ChiMarathon ships an update every 2 weeks, P3R every 12 months. The most recent releases landed on October 16, 2026 and October 6, 2026 respectively.
| Parameter | ChiMarathon | P3R |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (4 ratings) | 4.8 (227 ratings) — better |
| Positive reviews | 32.9% of reviews | 91.2% of reviews — better |
| Number of ratings | 4 | 227 — better |
| Update frequency | Every 2 weeks — better | Every 12 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 112 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Tata Consultancy Services | Dilltree Inc |
Customer experience
ChiMarathon
P3R
User reviews
ChiMarathon
From 4 App Store ratingsWhat we love
- 👍 Great for tracking runners
- 👍 Works well in the UK
- 👍 Able to track runner entire time
- 👍 Loved tracking friends
- 👍 Very useful for watching friend run
Room to improve
- 🐛 Map tracker not spectator-geared
- 🐛 Mile markers inconsistent
- 🐛 Map shows water stations for runners
- 🐛 Units displayed incorrectly (miles vs km)
- 🐛 App doesn't update times
P3R
From 227 App Store ratingsWhat we love
- 👍 Easy to use and navigate
- 👍 Great for tracking runners
- 👍 Wonderful for spectators
- 👍 Provides valuable information
- 👍 Good for connecting with runners
Room to improve
- 🐛 Inaccurate tracking near the end
- 🐛 Jumps in mileage
- 🐛 Tracker shows incorrect times
- 🐛 App not showing current year's races
- 🐛 Unable to find upcoming races
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
Show 54 moreShow fewer
- 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
Show 26 moreShow fewer
- 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
P3R
Reported bugs
5 issues- Tracker inaccurate for last 2-3 miles
- Tracker jumps from mile 10.5 to 12.5 for half marathon
- Tracker shows runner finishing 15 min before actual time
- App does not show 2025 races, only 2024 results
- Unable to find new races or upcoming race calendar
Requested features
3 requests- Stream app horizontally to smart TV
- Show all runners at once on screen
- Map route with easy access for bystanders
In-app purchases
ChiMarathon
No in-app purchases
P3R
No in-app purchases
