IOM Highways Pro vs 4Warning
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IOM Highways Pro
Navigate the Isle of Man's road network with real-time updates from electronic signs and traffic conditions. Plan your journeys efficiently and avoid congestion with live map data and instant notifications for sign changes.
- Live road sign feed
- Real-time traffic map
- Push notifications for sign changes
- Journey planning
- Congestion avoidance
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Navigate the Isle of Man road network with confidence using the IOM Highways Pro app (formally the Read The Signs app) from the Isle of Man Department of Infrastructure. Stay informed about traffic conditions and potential issues before you hit the road with real-time updates from electronic road signs across the island. * Live Road Sign Feed: Access up-to-the-minute information from electronic signs to help you plan your journey efficiently. * Real-Time Traffic Map: View live traffic conditions on a detailed map to avoid congestion and delays. * Push Notifications: Subscribe to specific signs and receive instant push notifications when their information changes.
4Warning
This location-based service alerts users within a half-mile radius of live hazards and traffic disruptions. Report incidents like accidents with text, photos, or voice messages to help others avoid delays.
- Location-based hazard alerts
- 1/2 mile alert radius
- Report road accidents
- Live map with incident icons
- Share text, video, photo, voice messages
- Avoid traffic delays
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4Warning is a location-based app service that allows anyone who has downloaded this application to alert other members within a 1/2 mile radius of live hazards or disruptions when commuting around our cities and roads For example, if a 4Warning member(John Smith for example) observes a road accident that is causing built-up traffic he simply open the app and selects the road accident icon, and press enter. 4Warning then simply alerts all other members within 1/2mile of John’s position with a live map showing the road accident icon and additional information (text, video, photo, or voice message). This allows members the opportunity to avoid the area and delays. Drivers in the UK spend on average 115 hours per year in traffic jams. 4Warning was developed to help drivers avoiding unnecessary delays and costly disruptions to their daily commute. Privacy Policy & Terms of use: https://bit.ly/3CXmRDR
Screenshots
Verdict
The clearest difference is review sentiment: 4Warning at 80% against IOM Highways Pro's 29%. 4Warning also leads on update cadence (every 2 weeks vs every 30 months) and iOS requirement (13.2 vs 15.0). IOM Highways Pro's advantage is in-app purchases (none vs 1). On price, ads 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. 4Warning sells 1 in-app purchase, starting at $3.99 per year. IOM Highways Pro asks for nothing beyond the download.
IOM Highways Pro ships an update every 30 months, 4Warning every 2 weeks. The most recent releases landed on July 24, 2026 and June 11, 2026 respectively.
| Parameter | IOM Highways Pro | 4Warning |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.5 (2 ratings) — better |
| Positive reviews | 28.6% of reviews | 80.0% of reviews — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 30 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 13.2 — better |
| Further details — not scored | ||
| Size | 42 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Software Heads Limited | Paul Johnson |
Customer experience
IOM Highways Pro
4Warning
In-app purchases
IOM Highways Pro
No in-app purchases
4Warning
- Yearly Plan$3.991 Year
Questions
Is IOM Highways Pro free?
Is 4Warning free?
Do IOM Highways Pro or 4Warning have ads?
Which is updated more often, IOM Highways Pro or 4Warning?
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