Comparison

GTViewer vs Inventsys

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

GTViewer

This application allows users to download and view geospatial data on Apple devices without an internet connection. It functions similarly to a web-based counterpart but is designed for offline use.

Highlights
  • Offline geospatial data viewing
  • Downloadable data
  • Apple device compatibility
  • Geospatial data visualization
Features
Read full description

GTViewer downloads geospatial data for viewing on an Apple device like GTWeb, but in an offline fashion.

About

Inventsys

Features
Read full description

Those responsible in the office as well as construction workers, well masters or technicians on site have all information about the system available everywhere. The transparent overview includes practical visualizations such as the location on a map and asset journals, as well as the status of all assets and the orders assigned to them in the cockpit. Work carried out, inspections, measurements, inspection rounds, etc. can be easily recorded and supplemented with pictures and comments. Observations can be easily reported so that further measures can be initiated. Login required: This app only works in conjunction with Inventsys maintenance software. Please contact your Inventsys representative before using this app. With the Inventsys cloud platform, public utilities can increase their daily efficiency, extend the life of their assets and avoid unplanned high costs due to breakdowns or accidents. You can achieve this within days thanks to the pre-configured maintenance and inspection processes for water, electricity or other public infrastructure assets. Inventsys is the only solution specifically for public utilities with a strong focus on mobile devices for employees, IoT integration and smart city, QR codes, geolocation and photo documentation, combined with all the benefits of the cloud.

Screenshots

GTViewer3 screens
Inventsys3 screens

Verdict

The call

GTViewer and Inventsys are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

GTViewer ships an update monthly, Inventsys every 3 weeks. The most recent releases landed on September 16, 2026 and September 23, 2026 respectively.

ScorecardNo meaningful differences
GTViewer versus Inventsys: the parameters behind the verdict, then further details
ParameterGTViewerInventsys
PriceFreeFree
Rating3.8 (4 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings4 — better—
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.515.1 — better
Further details — not scored
Size25 MB99 MB
Age rating4+4+
DeveloperGraphic Technologies, Inc.Inventsys AG

In-app purchases

None

GTViewer

No in-app purchases

None

Inventsys

No in-app purchases

Questions

Is GTViewer free?
GTViewer is free to download, with no in-app purchases.
Is Inventsys free?
Inventsys is free to download, with no in-app purchases.
Do GTViewer or Inventsys have ads?
Neither GTViewer nor Inventsys shows ads.
Which is updated more often, GTViewer or Inventsys?
GTViewer ships an update monthly, and Inventsys every 3 weeks. Most recently, GTViewer was updated on September 16, 2026 and Inventsys on September 23, 2026.

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