GTWeb vs HeatMapper
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GTWeb
Access and interact with geospatial data served by a central server. This client offers a refined experience for iOS devices, enabling map navigation, data queries, and information review.
- Geospatial data viewing
- Map panning and zooming
- Locate queries
- Attribute info review
- Display presets
- Centrally managed data access
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GTWeb Client provides a rich user experience for data served by GTWeb Server. GTI's GTWeb Server provides a geospatial viewing solution for internet and intranet clients. GTWeb is centrally managed and can support a large number of clients requiring frequent or occasional access to both graphical map data and tabular database records. GTI's GTWeb Server can be accessed using a browser on any platform; however, the GTWeb Client provides a rich experience tailored specifically for an iOS device. The GTWeb Client supports locate queries, map panning and zooming, display presets, and attribute info review.
HeatMapper
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Ever wondered if a home is losing heat during the winter or cooling the outside during the summer? With HeatMapper, you can see exactly what’s happening. After you map out a home, you’ll be able to see differences in temperature, relative humidity, and moisture content.
Screenshots
Verdict
The clearest difference is update cadence: GTWeb at every 3 months against HeatMapper's every 7 months. GTWeb also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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.
GTWeb ships an update every 3 months, HeatMapper every 7 months. The most recent releases landed on September 28, 2026 and October 5, 2026 respectively.
| Parameter | GTWeb | HeatMapper |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Graphic Technologies, Inc. | Contractor Nation Corporation |
In-app purchases
GTWeb
No in-app purchases
HeatMapper
No in-app purchases
