# LinguaLens vs Speak On.

The clearest difference is update cadence: LinguaLens at every 4 days against Speak On.'s every 3 weeks. Speak On.'s advantage is iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. LinguaLens sells 9 in-app purchases, starting at $4.99 per 7 days and Speak On. sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

LinguaLens ships an update every 4 days, Speak On. every 3 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | LinguaLens | Speak On. |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 36.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 25 MB | 41 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [旻 蔡](https://appshunter.io/developer/1454667188) | [Moemi Asada](https://appshunter.io/developer/1882213512) |

## What reviewers say

### LinguaLens

[App page](https://appshunter.io/ios/app/lingualens/id6755678470)

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LinguaLens Plus Weekly | $4.99 | per 7 days |
| LinguaLens Pro (Weekly) | $9.99 | per 7 days |
| LinguaLens Plus (Monthly) | $19.99 | per month |
| LinguaLens Pro (Monthly) | $39.99 | per month |
| LinguaLens Plus (Annual) | $199.99 | per year |
| LinguaLens Pro (Annual) | $399.99 | per year |
| LinguaLens 2,500 Credits | $1.99 | one-time |
| LinguaLens 6,250 Credits | $4.99 | one-time |
| LinguaLens 12,500 Credits | $9.99 | one-time |


### Speak On.

[App page](https://appshunter.io/ios/app/speak-on/id6759998646)

This app focuses on improving English speaking fluency by encouraging longer, more detailed responses rather than just grammatical correctness. It uses AI to evaluate specific expressions and provides feedback to help users speak more confidently and elaborately.

**Highlights:** Unlimited speaking practice, AI evaluation of specific expressions, Focus on detailed and practical language, AI overall feedback, Progress visualization with scores and history

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Speak On. サブスクリプション マンスリー | $9.99 | per month |
| Speak On. サブスクリプション 6ヶ月 | $49.99 | per 6 months |
| Speak On. サブスクリプション 1年 | $69.99 | per year |


## Frequently asked questions

### Is LinguaLens free?

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

### Is Speak On. free?

Speak On. is free to download, with in-app purchases available.

### Do LinguaLens or Speak On. have ads?

Neither LinguaLens nor Speak On. shows ads.

### Which is updated more often, LinguaLens or Speak On.?

LinguaLens ships an update every 4 days, and Speak On. every 3 weeks. Most recently, LinguaLens was updated on October 30, 2026 and Speak On. on October 31, 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.*