# JHT Engineering APP vs PDF Editor

The clearest difference is price: JHT Engineering APP at Free against PDF Editor's $0.99. JHT Engineering APP also leads on iOS requirement (12 vs 17.0). PDF Editor's advantage is update cadence (every 10 days vs every 4 months). On ads, in-app purchases and device support there is nothing between them.

JHT Engineering APP is free to download; PDF Editor costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

JHT Engineering APP ships an update every 4 months, PDF Editor every 10 days. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | JHT Engineering APP | PDF Editor |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | — | **[4.2 (10 ratings)](https://appshunter.io/ios/app/pdf-editor-scan-edit-go/id6450979125/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 10 days** |
| Monetization | — | Paid |
| Size | 13 MB | 218 MB |
| Requires iOS | **12** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [JOHNSON HEALTH TECH CO., LTD.](https://appshunter.io/developer/994439492) | [大鹏 张](https://appshunter.io/developer/937718061) |

## What reviewers say

### JHT Engineering APP

[App page](https://appshunter.io/ios/app/jht-engineering-app/id1474324542)

**In-app purchases:** none


### PDF Editor

[App page](https://appshunter.io/ios/app/pdf-editor-scan-edit-go/id6450979125)

Easily scan paper documents, merge PDFs, and organize your files offline on iPhone and iPad. Convert various file types to PDF, annotate documents, and add signatures. Keep your paperwork tidy with nested folders and iCloud sync.

**Highlights:** Scan documents to PDF, Merge and split PDFs, Convert Office files to PDF, Annotate and sign documents, Organize files with folders, iCloud sync, Local network transfer

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

**In-app purchases:** none


## Frequently asked questions

### Is JHT Engineering APP free?

JHT Engineering APP is free to download, with no in-app purchases.

### Is PDF Editor free?

PDF Editor costs $0.99, with no in-app purchases.

### Do JHT Engineering APP or PDF Editor have ads?

Neither JHT Engineering APP nor PDF Editor shows ads.

### Which is updated more often, JHT Engineering APP or PDF Editor?

JHT Engineering APP ships an update every 4 months, and PDF Editor every 10 days. Most recently, JHT Engineering APP was updated on November 3, 2026 and PDF Editor on November 7, 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.*