VMMap vs Unicentric
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VMMap
This application connects to specific locator devices to log and display real-time location data in KML format. It allows users to email these data files directly from their device. Compatibility requires specific Bluetooth modules and iOS versions.
- Bluetooth connection to locator receiver
- Real-time data logging and display
- Data stored in KML format
- Email KML files directly
- Compatibility with Vivax-Metrotech products
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VMMap is highly compatible with Vivax-Metrotech locator products (www.vivax-metrotech.com). It can store and display the real time locate information on the field. Notes: 1. Please make sure that the BT module in the receiver is OBS421 or higher. This information can be found in the “About” screen of the receiver. 2. This application will work with iPhones version 4 or higher. Features: 1. Bluetooth connection with locator receiver. 2. All data will be logged in the device and display in real time. 3. Data are stored as KML format. 4. Email features available – you can email the KML file from your device Continued use of GPS running in the background can dramatically decrease battery life.
Unicentric
This business application enables users to gather essential information remotely, integrating seamlessly with their organization. It offers optional background location tracking for enhanced data collection, though this may impact battery life.
- Remote data collection
- Organizational integration
- Optional background location tracking
- Vital information gathering
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Integrated with your organization, Unicentric's EVV app allows you to collect vital information while working from anywhere. App also has the optional capability to track location while in the background. Background tracking may affect battery life.
Screenshots
Verdict
The clearest difference is review sentiment: VMMap at 50% against Unicentric's 0%. VMMap also leads on rating (2.8 vs 1.8). On price, ratings volume, update cadence and ads 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.
VMMap holds the better App Store score, 2.8 against 1.8. Both are backed by a comparable volume of ratings — 4 and 11 respectively. Written reviews point the same way: 50% of VMMap's written reviews are positive against 0% of Unicentric's.
VMMap ships an update every 2 months, Unicentric every 5 weeks. The most recent releases landed on August 25, 2026 and June 4, 2026 respectively.
| Parameter | VMMap | Unicentric |
|---|---|---|
| Price | Free | Free |
| Rating | 2.8 (4 ratings) — better | 1.8 (11 ratings) |
| Positive reviews | 50.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 4 | 11 — better |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 26 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | Metrotech Corp. | Unicentric |
Customer experience
VMMap
Unicentric
In-app purchases
VMMap
No in-app purchases
Unicentric
No in-app purchases
