# Word Detection vs Houstudia Calculator

The clearest difference is in-app purchases: Houstudia Calculator at none against Word Detection's 2. Houstudia Calculator also leads on update cadence (every 2 months vs every 6 months) and iOS requirement (15.1 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. Word Detection sells 2 one-off in-app purchases. Houstudia Calculator asks for nothing beyond the download.

Word Detection ships an update every 6 months, Houstudia Calculator every 2 months. The most recent releases landed on October 25, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Word Detection | Houstudia Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/word-detection/id1501426471/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 7 MB | 20 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Raj Sheth](https://appshunter.io/developer/976941598) | [Houstudia](https://appshunter.io/developer/1848855363) |

## What reviewers say

### Word Detection

[App page](https://appshunter.io/ios/app/word-detection/id1501426471)

This utility uses your device's camera to instantly highlight specific words in printed text. It also supports searching within uploaded images and documents, making text analysis efficient for various users.

**Highlights:** Real-time camera word detection, Search within uploaded images/files, Highlight multiple words simultaneously, Zoom functionality, Flash control, Customizable highlight color, Save and share results

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Photo Word Detection | $0.99 | one-time |
| Unlock Pro | $1.99 | one-time |


### Houstudia Calculator

[App page](https://appshunter.io/ios/app/houstudia-calculator/id6754558086)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Word Detection free?

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

### Is Houstudia Calculator free?

Houstudia Calculator is free to download, with no in-app purchases.

### Do Word Detection or Houstudia Calculator have ads?

Neither Word Detection nor Houstudia Calculator shows ads.

### Which is updated more often, Word Detection or Houstudia Calculator?

Word Detection ships an update every 6 months, and Houstudia Calculator every 2 months. Most recently, Word Detection was updated on October 25, 2026 and Houstudia Calculator on October 17, 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.*