# Synthé vs Lecsium

The clearest difference is ads: Lecsium at none against Synthé's shown. Synthé's advantage is update cadence (every 2 days vs every 8 days). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Synthé sells 2 in-app purchases, starting at $9.00 per month and Lecsium sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Synthé ships an update every 2 days, Lecsium every 8 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Synthé | Lecsium |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Every 8 days |
| Size | 39 MB | 62 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Myumyun Yusein](https://appshunter.io/developer/1873360459) | [Nathan Grondin](https://appshunter.io/developer/6798629323) |

## What reviewers say

### Synthé

[App page](https://appshunter.io/ios/app/synthe-prise-de-notes-ia/id6792992985)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (1 mois) | $9.00 | per month |
| Premium (1 an) - 7 jours d'essai | $49.99 | per year |


### Lecsium

[App page](https://appshunter.io/ios/app/lecsium-learn-languages/id6798629321)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reader | $3.99 | per month |
| Author | $5.99 | per month |
| Ultra | $12.99 | per month |


## Frequently asked questions

### Is Synthé free?

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

### Is Lecsium free?

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

### Do Synthé or Lecsium have ads?

Synthé shows ads; Lecsium does not.

### Which is updated more often, Synthé or Lecsium?

Synthé ships an update every 2 days, and Lecsium every 8 days. Most recently, Synthé was updated on October 25, 2026 and Lecsium on October 24, 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.*