# GCTS gTest vs PDF Assistant：PDF Scanner App

The clearest difference is update cadence: GCTS gTest at every 2 weeks against PDF Assistant：PDF Scanner App's every 5 months. 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.

GCTS gTest ships an update every 2 weeks, PDF Assistant：PDF Scanner App every 5 months. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | GCTS gTest | PDF Assistant：PDF Scanner App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 5 months |
| Size | 145 MB | 3 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [GCTS Testing Systems](https://appshunter.io/developer/539767606) | [雪娟 柳](https://appshunter.io/developer/1678459771) |

## What reviewers say

### GCTS gTest

[App page](https://appshunter.io/ios/app/gcts-gtest/id1588420445)

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

**In-app purchases:** none


### PDF Assistant：PDF Scanner App

[App page](https://appshunter.io/ios/app/pdf-assistantpdf-scanner-app/id6756697919)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GCTS gTest free?

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

### Is PDF Assistant：PDF Scanner App free?

PDF Assistant：PDF Scanner App is free to download, with no in-app purchases.

### Do GCTS gTest or PDF Assistant：PDF Scanner App have ads?

Neither GCTS gTest nor PDF Assistant：PDF Scanner App shows ads.

### Which is updated more often, GCTS gTest or PDF Assistant：PDF Scanner App?

GCTS gTest ships an update every 2 weeks, and PDF Assistant：PDF Scanner App every 5 months. Most recently, GCTS gTest was updated on November 7, 2026 and PDF Assistant：PDF Scanner App on October 30, 2026.

---

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