# Mechanical Dictionary vs Physics Dictionary Offline

The clearest difference is in-app purchases: Physics Dictionary Offline at none against Mechanical Dictionary's 5. Physics Dictionary Offline also leads on ads (none vs shown). Mechanical Dictionary's advantage is update cadence (every 9 months vs every 31 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Mechanical Dictionary sells 5 in-app purchases, starting at $1.99 per 7 days. Physics Dictionary Offline asks for nothing beyond the download.

Mechanical Dictionary ships an update every 9 months, Physics Dictionary Offline every 31 months. The most recent releases landed on June 6, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Mechanical Dictionary | Physics Dictionary Offline |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (5 ratings)](https://appshunter.io/ios/app/mechanical-dictionary-offline/id1480363529/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 9 months** | Every 31 months |
| Monetization | Free with in-app purchases | — |
| Size | 14 MB | 46 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Puju Dekivadiya](https://appshunter.io/developer/1289574712) | [Andrew Putranto](https://appshunter.io/developer/1097285857) |

## What reviewers say

### Mechanical Dictionary

[App page](https://appshunter.io/ios/app/mechanical-dictionary-offline/id1480363529)

This app provides a comprehensive offline dictionary for mechanical engineering terms. It includes video lessons, tests, and expert coaching to enhance knowledge in the field. Features like search, audio pronunciation, and daily word learning are available.

**Highlights:** Offline access to thousands of terms, Search and bookmark functionality, Audio pronunciation of words, Daily 'Word of the Day' feature, Multiple choice quizzes, Customizable color themes

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro Plan | $1.99 | per 7 days |
| Monthly Pro Plan | $4.99 | per month |
| Yearly Pro Plan | $29.99 | per year |
| Remove Ads | $9.99 | one-time |
| Lifetime Access | $39.99 | one-time |


### Physics Dictionary Offline

[App page](https://appshunter.io/ios/app/physics-dictionary-offline/id1523781509)

**In-app purchases:** none


## Frequently asked questions

### Is Mechanical Dictionary free?

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

### Is Physics Dictionary Offline free?

Physics Dictionary Offline is free to download, with no in-app purchases.

### Do Mechanical Dictionary or Physics Dictionary Offline have ads?

Mechanical Dictionary shows ads; Physics Dictionary Offline does not.

### Which is updated more often, Mechanical Dictionary or Physics Dictionary Offline?

Mechanical Dictionary ships an update every 9 months, and Physics Dictionary Offline every 31 months. Most recently, Mechanical Dictionary was updated on June 6, 2026 and Physics Dictionary Offline on September 9, 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.*