# Architecture Dictionary vs Engineering Formulas

The clearest difference is in-app purchases: Architecture Dictionary at none against Engineering Formulas's 3. Architecture Dictionary also leads on iOS requirement (8.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Engineering Formulas sells 3 in-app purchases, starting at $4.99 per 7 days. Architecture Dictionary asks for nothing beyond the download.

## The numbers

| Metric | Architecture Dictionary | Engineering Formulas |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/architecture-dictionary-terms-definitions/id1253453127/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Monetization | Free | — |
| Size | 58 MB | 45 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Santosh Mishra](https://appshunter.io/developer/1187693169) | [Mobin Akhter](https://appshunter.io/developer/1812505286) |

## What reviewers say

### Architecture Dictionary

[App page](https://appshunter.io/ios/app/architecture-dictionary-terms-definitions/id1253453127)

Instantly decode architectural terms with this free offline dictionary. Access a vast encyclopedia of definitions, search for specific words, and bookmark favorites for easy reference. Improve your understanding of architectural language.

**Highlights:** Extensive architectural term encyclopedia, Search functionality, Bookmark terms, Share terms on social media, Audio pronunciation

**In-app purchases:** none


### Engineering Formulas

[App page](https://appshunter.io/ios/app/engineering-formulas-engiref/id6758258119)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| Yearly Premium | $29.99 | per year |
| Lifetime Access | $54.99 | one-time |


## Frequently asked questions

### Is Architecture Dictionary free?

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

### Is Engineering Formulas free?

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

### Do Architecture Dictionary or Engineering Formulas have ads?

Neither Architecture Dictionary nor Engineering Formulas shows ads.

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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.*