# ChiMarathon vs P3R

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.

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.

## The numbers

| Metric | ChiMarathon | P3R |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (4 ratings)](https://appshunter.io/ios/app/chimarathon/id718145625/reviews) | **[4.8 (227 ratings)](https://appshunter.io/ios/app/p3r/id6445966970/reviews)** |
| Number of ratings | 4 | **227** |
| Positive reviews | 32.9% of reviews | **91.2% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 12 months |
| Monetization | Free | Free |
| Size | 112 MB | 21 MB |
| Requires iOS | 18.6 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tata Consultancy Services](https://appshunter.io/developer/467615204) | [Dilltree Inc](https://appshunter.io/developer/799017229) |

## What reviewers say

### ChiMarathon

[App page](https://appshunter.io/ios/app/chimarathon/id718145625)

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.

**Highlights:** Live runner tracking, Athlete profiles, Live broadcast streaming, Real-time weather, Interactive course map, Digital cheer submission

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Great for tracking runners
- 👍 Works well in the UK
- 👍 Able to track runner entire time
- 👍 Loved tracking friends
- 👍 Very useful for watching friend run

**What reviewers complain about**

- 🐛 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

**Reported bugs**

- 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

**Requested features**

- 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


### P3R

[App page](https://appshunter.io/ios/app/p3r/id6445966970)

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.

**Highlights:** Runner Tracking, Course Maps, Social Media Sharing, Event Information, Results, FAQs

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use and navigate
- 👍 Great for tracking runners
- 👍 Wonderful for spectators
- 👍 Provides valuable information
- 👍 Good for connecting with runners

**What reviewers complain about**

- 🐛 Inaccurate tracking near the end
- 🐛 Jumps in mileage
- 🐛 Tracker shows incorrect times
- 🐛 App not showing current year's races
- 🐛 Unable to find upcoming races

**Reported bugs**

- 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**

- Stream app horizontally to smart TV
- Show all runners at once on screen
- Map route with easy access for bystanders


## Frequently asked questions

### Is ChiMarathon free?

ChiMarathon is free to download, with no in-app purchases.

### Is P3R free?

P3R is free to download, with no in-app purchases.

### Which has better reviews, ChiMarathon or P3R?

P3R is rated higher. ChiMarathon averages 3.5 out of 5 from 4 ratings, while P3R averages 4.8 from 227 ratings.

### Do ChiMarathon or P3R have ads?

Neither ChiMarathon nor P3R shows ads.

### Which is updated more often, ChiMarathon or P3R?

ChiMarathon ships an update every 2 weeks, and P3R every 12 months. Most recently, ChiMarathon was updated on October 16, 2026 and P3R on October 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*