# Collection Lecto vs DécoDI

The clearest difference is in-app purchases: DécoDI at none against Collection Lecto's 8. DécoDI also leads on iOS requirement (10.0 vs 13.0). Collection Lecto's advantage is update cadence (every 2 months vs every 18 months). On price, ads and device support there is nothing between them.

Both are free to download. Collection Lecto sells 8 one-off in-app purchases. DécoDI asks for nothing beyond the download.

Collection Lecto ships an update every 2 months, DécoDI every 18 months. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Collection Lecto | DécoDI |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 18 months |
| Monetization | Free | — |
| Size | 159 MB | 229 MB |
| Requires iOS | 13.0 | **10.0** |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Domino (apps)](https://appshunter.io/developer/910245348) | [Haute Ecole Pedagogique du Canton de Vaud](https://appshunter.io/developer/1553457923) |

## What reviewers say

### Collection Lecto

[App page](https://appshunter.io/ios/app/collection-lecto/id1437140583)

This app helps children with reading difficulties by providing over 13,000 words categorized by objectives and difficulty levels. It offers tools for speech therapists, educators, and parents to work on various reading goals effectively and progressively through word reading, flash reading, and reinforcement games.

**Highlights:** 13,000+ words categorized by difficulty, Word reading exercises, Flash reading mode, 4 reinforcement games, Customizable word lists, Progress tracking

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lecto | $9.99 | one-time |
| Lecto Flash | $9.99 | one-time |
| Lecto Fun | $9.99 | one-time |
| Lecto | $22.99 | one-time |
| Lecto Flash | $22.99 | one-time |
| Lecto + Lecto Fun | $29.99 | one-time |
| Lecto Flash + Lecto Fun | $29.99 | one-time |
| Lecto + LectoFlash + LectoFun | $39.99 | one-time |


### DécoDI

[App page](https://appshunter.io/ios/app/decodi/id1553457921)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Collection Lecto free?

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

### Is DécoDI free?

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

### Do Collection Lecto or DécoDI have ads?

Neither Collection Lecto nor DécoDI shows ads.

### Which is updated more often, Collection Lecto or DécoDI?

Collection Lecto ships an update every 2 months, and DécoDI every 18 months. Most recently, Collection Lecto was updated on October 3, 2026 and DécoDI on October 7, 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.*