# Houaiss.on vs ProRaiz by Layers

The clearest difference is rating: ProRaiz by Layers at 5.0 against Houaiss.on's 3.0. ProRaiz by Layers also leads on update cadence (every 2 weeks vs every 5 months). Houaiss.on's advantage is ratings volume (6 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

ProRaiz by Layers holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: Houaiss.on has 6 ratings behind it against 1, so its average is the more settled of the two.

Houaiss.on ships an update every 5 months, ProRaiz by Layers every 2 weeks. The most recent releases landed on July 18, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Houaiss.on | ProRaiz by Layers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (6 ratings)](https://appshunter.io/ios/app/houaisson/id1238388805/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/proraiz-by-layers/id6461458057/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 26.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 8 MB | 24 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Instituto Antônio Houaiss de Lexicografia](https://appshunter.io/developer/1238388804) | [RAIZ EDUCACAO S.A.](https://appshunter.io/developer/1547999733) |

## What reviewers say

### Houaiss.on

[App page](https://appshunter.io/ios/app/houaisson/id1238388805)

Access the Houaiss dictionaries and automatically correct your texts on iOS devices. This educational tool helps improve writing accuracy and vocabulary.

**Highlights:** Access Houaiss dictionaries, Automatic text correction, Improve writing accuracy, Vocabulary enhancement

**Features:** macOS Compatibility

**In-app purchases:** none


### ProRaiz by Layers

[App page](https://appshunter.io/ios/app/proraiz-by-layers/id6461458057)

Stay updated with school news, announcements, and events. Access a personalized photo gallery and communicate efficiently. This app facilitates quick and simple messaging between users.

**Highlights:** Latest school information, Announcements and notifications, Event alerts, Personalized photo gallery, Simple and fast messaging

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

**In-app purchases:** none


## Frequently asked questions

### Is Houaiss.on free?

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

### Is ProRaiz by Layers free?

ProRaiz by Layers is free to download, with no in-app purchases.

### Which has better reviews, Houaiss.on or ProRaiz by Layers?

ProRaiz by Layers is rated higher. Houaiss.on averages 3.0 out of 5 from 6 ratings, while ProRaiz by Layers averages 5.0 from 1 ratings.

### Do Houaiss.on or ProRaiz by Layers have ads?

Neither Houaiss.on nor ProRaiz by Layers shows ads.

### Which is updated more often, Houaiss.on or ProRaiz by Layers?

Houaiss.on ships an update every 5 months, and ProRaiz by Layers every 2 weeks. Most recently, Houaiss.on was updated on July 18, 2026 and ProRaiz by Layers on September 20, 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.*