# IMSA vs GRIP SRO

The clearest difference is ads: GRIP SRO at none against IMSA's shown. GRIP SRO also leads on update cadence (weekly vs every 2 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, GRIP SRO weekly. Both last shipped on September 24, 2026.

## The numbers

| Metric | IMSA | GRIP SRO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (69 ratings)](https://appshunter.io/ios/app/imsa/id789830071/reviews)** | — |
| Number of ratings | **69** | — |
| Positive reviews | 28.3% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Ad-supported | — |
| Size | 93 MB | 50 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [International Motor Sports Association, LLC](https://appshunter.io/developer/795198030) | [Grupo ERRE](https://appshunter.io/developer/1366187619) |

## 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- Outdated information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


### GRIP SRO

[App page](https://appshunter.io/ios/app/grip-sro/id6757798730)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IMSA free?

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

### Is GRIP SRO free?

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

### Do IMSA or GRIP SRO have ads?

IMSA shows ads; GRIP SRO does not.

### Which is updated more often, IMSA or GRIP SRO?

IMSA ships an update every 2 months, and GRIP SRO weekly. Most recently, IMSA was updated on September 24, 2026 and GRIP SRO on September 24, 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.*