Scan vs EcoStar III
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Scan
Easily manage Whelen flash patterns for compatible lightheads using your phone. Browse, test, and assign patterns wirelessly via Bluetooth with a required programmer.
- Browse and assign flash patterns
- Test patterns up to 20 seconds
- Access steady pattern option
- Bluetooth connectivity
- Supports compatible Whelen lightheads
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Scan-Lock+ is the simplest way to change Whelen flash patterns. Designed for optimal convenience, Scan-Lock+ features an easy to use interface and utilizes a Bluetooth connection. Download the Scan-Lock+ app and browse, test, and assign Whelen flash patterns right from your phone. Key Features Scroll and Update Flash Patterns Using a Scan-Lock+ Programmer, pair any compatible Whelen lighthead with the Scan-Lock+ app and easily browse, test, and assign flash patterns. Test Flash Patterns Preview any flash pattern for up to 20 seconds. Easily Access the Steady Pattern Enable the steady option right from the top of the flash pattern list. Bluetooth Connectivity The Scan-Lock+ app communicates to a Scan-Lock+ Programmer via Bluetooth connection. Supported Whelen Lightheads Compatible with any Whelen lighthead that supports Scan-Lock+ or the original Scan-Lock. A Scan-Lock+ Programmer is required to use this app. See more at www.whelen.com/scanlockplus
EcoStar III
Monitor and manage your vehicle's idle reduction system. Track idle time, view real-time vehicle data, and adjust system configurations. Optimize fuel efficiency and gain insights into your vehicle's performance.
- Real-time idle time tracking
- Idle reduction statistics calculation
- Module configuration retrieval and modification
- Real-time vehicle data display
- Diagnostic information access
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Interface with the InterMotive EcoStar™ III Idle Reduction System. View real time idle time tracking data and calculate idle reduction statistics. Retrieve and modify module configuration. View real time vehicle data and diagnostic information.
Screenshots
Verdict
The clearest difference is rating: Scan at 5.0 against EcoStar III's 3.3. Scan also leads on update cadence (every 3 weeks vs every 35 months) and iOS requirement (8.0 vs 15.6). On price, ratings volume, ads and in-app purchases 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.
Scan holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 5 and 3 respectively.
Scan ships an update every 3 weeks, EcoStar III every 35 months. The most recent releases landed on September 23, 2026 and October 3, 2026 respectively.
| Parameter | Scan | EcoStar III |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | 3.3 (3 ratings) |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 5 — better | 3 |
| Update frequency | Every 3 weeks — better | Every 35 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 41 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Whelen Engineering Co. | Intermotive Inc |
Customer experience
Scan
EcoStar III
In-app purchases
Scan
No in-app purchases
EcoStar III
No in-app purchases
