# IMSA vs Flatout Sim Racing Leaderboard

The clearest difference is ads: Flatout Sim Racing Leaderboard at none against IMSA's shown. IMSA's advantage is update cadence (every 2 months vs every 5 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

IMSA ships an update every 2 months, Flatout Sim Racing Leaderboard every 5 months. The most recent releases landed on October 29, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | IMSA | Flatout Sim Racing Leaderboard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (70 ratings)](https://appshunter.io/ios/app/imsa/id789830071/reviews)** | — |
| Number of ratings | **70** | — |
| Positive reviews | 28.3% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Ad-supported | — |
| Size | 93 MB | 33 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [International Motor Sports Association, LLC](https://appshunter.io/developer/795198030) | [Industrial-Strength Data Systems Inc.](https://appshunter.io/developer/1741377962) |

## What reviewers say

### IMSA

[App page](https://appshunter.io/ios/app/imsa/id789830071)

Stay updated with every IMSA race weekend. Access live video, IMSA Radio, and real-time timing and scoring for the WeatherTech SportsCar Championship and Michelin Pilot Challenge series.

**Highlights:** Live video streaming, IMSA Radio access, Live timing and scoring, Race weekend coverage, WeatherTech SportsCar Championship, Michelin Pilot Challenge

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Brilliant app
- 👍 Great app
- 👍 Very informative
- 👍 Awesome app!
- 👍 Suburb

**What reviewers complain about**

- 🐛 This app would be amazing if you could actually watch the race on the live stream
- 🐛 Won't let me delete account
- 🐛 Timing and scoring terrible
- 🐛 Live scoring needs improvement
- 🐛 It's so broken

**Reported bugs**

- No portrait mode
- Hamburger menu issues
- Incompatible with newer devices
- Outdated information
- Crashes when opened

**Requested features**

- Apple TV app
- Notifications
- Landscape mode
- Live feed
- Live timing and scoring


### Flatout Sim Racing Leaderboard

[App page](https://appshunter.io/ios/app/flatout-sim-racing-leaderboard/id6670177429)

**In-app purchases:** none


## Frequently asked questions

### Is IMSA free?

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

### Is Flatout Sim Racing Leaderboard free?

Flatout Sim Racing Leaderboard is free to download, with no in-app purchases.

### Do IMSA or Flatout Sim Racing Leaderboard have ads?

IMSA shows ads; Flatout Sim Racing Leaderboard does not.

### Which is updated more often, IMSA or Flatout Sim Racing Leaderboard?

IMSA ships an update every 2 months, and Flatout Sim Racing Leaderboard every 5 months. Most recently, IMSA was updated on October 29, 2026 and Flatout Sim Racing Leaderboard on October 9, 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.*