# ReadLang WatchLang vs Insect Identifier · AI Scanner

The clearest difference is in-app purchases: ReadLang WatchLang at none against Insect Identifier · AI Scanner's 2. ReadLang WatchLang also leads on update cadence (every 2 weeks vs every 7 months). Insect Identifier · AI Scanner's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Insect Identifier · AI Scanner sells 2 in-app purchases, starting at $3.99 per 7 days. ReadLang WatchLang asks for nothing beyond the download.

ReadLang WatchLang ships an update every 2 weeks, Insect Identifier · AI Scanner every 7 months. The most recent releases landed on October 21, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | ReadLang WatchLang | Insect Identifier · AI Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (64 ratings)](https://appshunter.io/ios/app/readlang-watchlang/id1602114377/reviews)** | — |
| Number of ratings | **64** | — |
| Positive reviews | 64.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 7 months |
| Monetization | Free with in-app purchases | — |
| Size | 27 MB | 51 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Nguyen Hong Phuc](https://appshunter.io/developer/1519084763) | [Andrii Kulchytskyi](https://appshunter.io/developer/1759867572) |

## What reviewers say

### ReadLang WatchLang

[App page](https://appshunter.io/ios/app/readlang-watchlang/id1602114377)

Learn languages by translating words and phrases on any webpage or YouTube video with dual subtitles. Practice vocabulary in context and improve listening skills with native pronunciations.

**Highlights:** Translate words and phrases on any webpage, YouTube dual subtitle player, Learn over 100 languages, Practice vocabulary in context, Listen to native pronunciations

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

**In-app purchases:** none


### Insect Identifier · AI Scanner

[App page](https://appshunter.io/ios/app/insect-identifier-ai-scanner/id6759033596)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bug ID Weekly with 3 days trial | $3.99 | per 7 days |
| Insect Identifier Yearly | $19.99 | per year |


## Frequently asked questions

### Is ReadLang WatchLang free?

ReadLang WatchLang is free to download, with no in-app purchases.

### Is Insect Identifier · AI Scanner free?

Insect Identifier · AI Scanner is free to download, with in-app purchases available.

### Do ReadLang WatchLang or Insect Identifier · AI Scanner have ads?

ReadLang WatchLang shows ads; Insect Identifier · AI Scanner does not.

### Which is updated more often, ReadLang WatchLang or Insect Identifier · AI Scanner?

ReadLang WatchLang ships an update every 2 weeks, and Insect Identifier · AI Scanner every 7 months. Most recently, ReadLang WatchLang was updated on October 21, 2026 and Insect Identifier · AI Scanner on October 11, 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.*