# UTTO vLocate® Mapper vs Controller Diagnostics

The clearest difference is update cadence: Controller Diagnostics at every 3 weeks against UTTO vLocate® Mapper's every 6 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

UTTO vLocate® Mapper ships an update every 6 weeks, Controller Diagnostics every 3 weeks. The most recent releases landed on September 9, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | UTTO vLocate® Mapper | Controller Diagnostics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/utto-vlocate-mapper/id1640527569/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 50 MB | 2 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [IPEG Corporation](https://appshunter.io/developer/975001553) | [Lykketronic AS](https://appshunter.io/developer/1297619408) |

## What reviewers say

### UTTO vLocate® Mapper

[App page](https://appshunter.io/ios/app/utto-vlocate-mapper/id1640527569)

This app provides centimeter-accurate mapping and relocation of buried assets for the utility industry. It allows importing existing GIS data or mapping new facilities, with export options to various GIS platforms. A dedicated hardware device is required for operation.

**Highlights:** Centimeter-accurate mapping, Relocation of buried assets, Import GIS datasets, Map facilities during construction, Export data to GIS platforms, Compatible with ArcGIS Field Maps

**In-app purchases:** none


### Controller Diagnostics

[App page](https://appshunter.io/ios/app/controller-diagnostics/id6444090201)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is UTTO vLocate® Mapper free?

UTTO vLocate® Mapper is free to download, with no in-app purchases.

### Is Controller Diagnostics free?

Controller Diagnostics is free to download, with no in-app purchases.

### Do UTTO vLocate® Mapper or Controller Diagnostics have ads?

Neither UTTO vLocate® Mapper nor Controller Diagnostics shows ads.

### Which is updated more often, UTTO vLocate® Mapper or Controller Diagnostics?

UTTO vLocate® Mapper ships an update every 6 weeks, and Controller Diagnostics every 3 weeks. Most recently, UTTO vLocate® Mapper was updated on September 9, 2026 and Controller Diagnostics on September 17, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*