# Mechanical Dictionary vs SciComLab App

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

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

Mechanical Dictionary ships an update every 9 months, SciComLab App every 5 days. The most recent releases landed on October 3, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Mechanical Dictionary | SciComLab App |
| --- | --- | --- |
| 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 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 14 MB | 174 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Puju Dekivadiya](https://appshunter.io/developer/1289574712) | [Konrad Rappaport](https://appshunter.io/developer/1665551174) |

## 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 |


### SciComLab App

[App page](https://appshunter.io/ios/app/scicomlab-app/id1665551172)

**In-app purchases:** none


## Frequently asked questions

### Is Mechanical Dictionary free?

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

### Is SciComLab App free?

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

### Do Mechanical Dictionary or SciComLab App have ads?

Mechanical Dictionary shows ads; SciComLab App does not.

### Which is updated more often, Mechanical Dictionary or SciComLab App?

Mechanical Dictionary ships an update every 9 months, and SciComLab App every 5 days. Most recently, Mechanical Dictionary was updated on October 3, 2026 and SciComLab App on October 15, 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.*