# GVR Field Trial vs DFS Unlock

The clearest difference is rating: GVR Field Trial at 3.0 against DFS Unlock's 1.8. DFS Unlock's advantage is update cadence (every 4 months vs every 11 months). On price, review sentiment, ratings volume and ads there is nothing between them.

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

GVR Field Trial holds the better App Store score, 3.0 against 1.8. Both are backed by a comparable volume of ratings — 4 and 10 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

GVR Field Trial ships an update every 11 months, DFS Unlock every 4 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | GVR Field Trial | DFS Unlock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (4 ratings)](https://appshunter.io/ios/app/gvr-field-trial/id1148327340/reviews)** | [1.8 (10 ratings)](https://appshunter.io/ios/app/dfs-unlock/id1343398221/reviews) |
| Number of ratings | 4 | **10** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 76 MB | 48 MB |
| Requires iOS | 8.0 | 8 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [GILBARCO INC](https://appshunter.io/developer/1148327339) | [Wayne Fueling Systems LLC](https://appshunter.io/developer/1343398220) |

## What reviewers say

### GVR Field Trial

[App page](https://appshunter.io/ios/app/gvr-field-trial/id1148327340)

Facilitates communication between support teams and certified installers during field testing. Provides product news and expedited support for customers involved in testing programs.

**Highlights:** Maintain communication with support teams, Expedite assistance during field testing, Dispatch tool for certified installers, Product news updates, Expedited support from live resources

**Features:** macOS Compatibility

**In-app purchases:** none


### DFS Unlock

[App page](https://appshunter.io/ios/app/dfs-unlock/id1343398221)

This application provides authorized service operators and global platform support with response codes for device access. It facilitates interactions with systems like iXPay/SPM and iGEM.

**Highlights:** Receive response codes for device access, Supports iXPay/SPM, Supports iGEM, Supports DFSEdge, For Authorized Service Operators, For Global Platform Support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GVR Field Trial free?

GVR Field Trial is free to download, with no in-app purchases.

### Is DFS Unlock free?

DFS Unlock is free to download, with no in-app purchases.

### Which has better reviews, GVR Field Trial or DFS Unlock?

GVR Field Trial is rated higher. GVR Field Trial averages 3.0 out of 5 from 4 ratings, while DFS Unlock averages 1.8 from 10 ratings.

### Do GVR Field Trial or DFS Unlock have ads?

Neither GVR Field Trial nor DFS Unlock shows ads.

### Which is updated more often, GVR Field Trial or DFS Unlock?

GVR Field Trial ships an update every 11 months, and DFS Unlock every 4 months. Most recently, GVR Field Trial was updated on November 2, 2026 and DFS Unlock on November 2, 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.*