IMSA vs Rally4NOW
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IMSA
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.
- Live video streaming
- IMSA Radio access
- Live timing and scoring
- Race weekend coverage
- WeatherTech SportsCar Championship
- Michelin Pilot Challenge
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The official IMSA mobile app features live video, IMSA Radio, timing and scoring and more during every IMSA WeatherTech SportsCar Championship and IMSA Michelin Pilot Challenge race weekend.
Rally4NOW
Get live stage results and comprehensive statistics for WRC, ERC, and national rally championships. Never miss race updates from your favorite rally team with real-time information, news, and media content.
- Live stage results
- Comprehensive rally statistics
- Championship standings
- Rally stage maps and spectator guides
- Media content with report videos
- Navigation assistance
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A unique free rally online application for LIVE stage results of WRC, ERC, national rally championships and more races. ONLY this rally application provides real-time stage results and comprehensive statistics of rally racing teams. Never miss any race results from your favourite rally team again! You can download it for free now! Features: + rally event selection and stage selection + after stage and over-all rally event results + graph results (position, time differential) + LIVE race info and news + guide with rally stage maps and spectator places + championship standing + media content with report videos and on-board camera + navigation around rally tracks and POIs. Works with free navigation application Waze Currently supported Championships: + CZ - Mistrovství ČR v Rally, Rallysprint série + SK - Majstrovstvá Slovenska v rally + PT - CNR, TNRA + WRC, ERC
Screenshots
Verdict
The clearest difference is review sentiment: Rally4NOW at 83% against IMSA's 28%. Rally4NOW also leads on rating (5.0 vs 4.1) and ads (none vs shown). IMSA's advantage is ratings volume (69 vs 1). On price, update cadence, in-app purchases and device support 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.
Rally4NOW holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: IMSA has 69 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 28% of IMSA's written reviews are positive against 83% of Rally4NOW's.
IMSA ships an update every 2 months, Rally4NOW every 5 weeks. The most recent releases landed on October 12, 2026 and October 16, 2026 respectively.
| Parameter | IMSA | Rally4NOW |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (69 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 28.3% of reviews | 83.3% of reviews — better |
| Number of ratings | 69 — better | 1 |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 93 MB | 83 MB |
| Age rating | 12+ | 4+ |
| Developer | International Motor Sports Association, LLC | RALLY4NOW s.r.o. |
Customer experience
IMSA
Rally4NOW
Bugs and requests
IMSA
Reported bugs
8 issues- No portrait mode
- Hamburger menu issues
- Incompatible with newer devices
- Outdated information
- Crashes when opened
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- Login issues
- Slow performance
- Video playback issues
Requested features
5 requests- Apple TV app
- Notifications
- Landscape mode
- Live feed
- Live timing and scoring
Rally4NOW
Not enough reviews yet to summarise bugs or requests.
In-app purchases
IMSA
No in-app purchases
Rally4NOW
No in-app purchases
