# GL vs OponUp

GL and OponUp 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.

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

GL ships an update every 10 days, OponUp fortnightly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | GL | OponUp |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Fortnightly |
| Monetization | Free | — |
| Size | 81 MB | 58 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kamil Raczka](https://appshunter.io/developer/1537079618) | [Tomasz Przybyl](https://appshunter.io/developer/1244102625) |

## What reviewers say

### GL

[App page](https://appshunter.io/ios/app/gl-smart-20/id1537079616)

This app helps you quickly assess a car's paint condition using a compatible Bluetooth gauge. Record measurements, add photos, and generate a PDF report for easy sharing or saving. It offers two measurement modes and stores vehicle data in one place.

**Highlights:** Bluetooth paint thickness measurement, General and element-specific measurement modes, Vehicle data storage (brand, model, VIN), Photo documentation, PDF report generation, Optional online audit storage

**Features:** Vision Pro support

**In-app purchases:** none


### OponUp

[App page](https://appshunter.io/ios/app/oponup/id6762052899)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is GL free?

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

### Is OponUp free?

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

### Do GL or OponUp have ads?

Neither GL nor OponUp shows ads.

### Which is updated more often, GL or OponUp?

GL ships an update every 10 days, and OponUp fortnightly. Most recently, GL was updated on November 3, 2026 and OponUp on November 5, 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.*