# Words Lens vs RS Charge Server

The clearest difference is ads: RS Charge Server at none against Words Lens's shown. RS Charge Server also leads on update cadence (daily vs every 4 weeks) and iOS requirement (12.0 vs 26.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Words Lens ships an update every 4 weeks, RS Charge Server daily. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Words Lens | RS Charge Server |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (24 ratings)](https://appshunter.io/ios/app/words-lens/id1489872903/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 81.8% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 4 weeks | **Daily** |
| Monetization | Ad-supported | — |
| Size | 9 MB | 55 MB |
| Requires iOS | 26.0 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [YOYASOFT LLC](https://appshunter.io/developer/325345561) | [LUOYANG RUICHUANG ELECTRICAL EQUIPMENT CO., LTD.](https://appshunter.io/developer/1826705678) |

## What reviewers say

### Words Lens

[App page](https://appshunter.io/ios/app/words-lens/id1489872903)

Instantly get definitions for words you encounter in books, signs, or brochures by simply snapping a photo. This utility app helps you quickly understand complex vocabulary without manual searching. It intelligently skips common words in English to speed up the lookup process.

**Highlights:** Instant word definitions via camera, Scan books, signs, and brochures, Automatic skipping of common words, Supports multiple device languages, Quick vocabulary lookup

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

**In-app purchases:** none


### RS Charge Server

[App page](https://appshunter.io/ios/app/rs-charge-server/id6749564064)

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

**In-app purchases:** none


## Frequently asked questions

### Is Words Lens free?

Words Lens is free to download, with no in-app purchases.

### Is RS Charge Server free?

RS Charge Server is free to download, with no in-app purchases.

### Do Words Lens or RS Charge Server have ads?

Words Lens shows ads; RS Charge Server does not.

### Which is updated more often, Words Lens or RS Charge Server?

Words Lens ships an update every 4 weeks, and RS Charge Server daily. Most recently, Words Lens was updated on November 3, 2026 and RS Charge Server on October 30, 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.*