# Engineering Terms EN vs TH

The clearest difference is in-app purchases: Engineering Terms EN at none against TH's 1. TH's advantage is ads (none vs shown) and update cadence (monthly vs every 18 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. TH sells 1 one-off in-app purchase. Engineering Terms EN asks for nothing beyond the download.

Engineering Terms EN ships an update every 18 months, TH monthly. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Engineering Terms EN | TH |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 18 months | **Monthly** |
| Size | 33 MB | 69 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kittipong Intaboot](https://appshunter.io/developer/972195994) | [Ukrit Wattanakulchart](https://appshunter.io/developer/1602660564) |

## What reviewers say

### Engineering Terms EN

[App page](https://appshunter.io/ios/app/engineering-terms-en-th-thai/id1561829425)

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

**In-app purchases:** none


### TH

[App page](https://appshunter.io/ios/app/th-en-dictionary/id1602660562)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


## Frequently asked questions

### Is Engineering Terms EN free?

Engineering Terms EN is free to download, with no in-app purchases.

### Is TH free?

TH is free to download, with in-app purchases available.

### Do Engineering Terms EN or TH have ads?

Engineering Terms EN shows ads; TH does not.

### Which is updated more often, Engineering Terms EN or TH?

Engineering Terms EN ships an update every 18 months, and TH monthly. Most recently, Engineering Terms EN was updated on October 24, 2026 and TH on October 27, 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.*