# Grammaggio vs PC

The clearest difference is update cadence: PC at every 10 months against Grammaggio's every 30 months. Grammaggio's advantage is iOS requirement (9.0 vs 15.1). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Grammaggio against 5.0 for PC. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Grammaggio ships an update every 30 months, PC every 10 months. The most recent releases landed on September 27, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Grammaggio | PC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/grammaggio/id1452948579/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/pc-obs/id1499724343/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 30 months | **Every 10 months** |
| Monetization | Free | Free |
| Size | 35 MB | 25 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rice Innovations, LLC](https://appshunter.io/developer/1452948578) | [The University of Kansas](https://appshunter.io/developer/726307325) |

## What reviewers say

### Grammaggio

[App page](https://appshunter.io/ios/app/grammaggio/id1452948579)

This app offers grammar exercises designed for children with Specific Language Impairment (SLI). It tracks scores and compares performance to age-based benchmarks, aiding language skill development.

**Highlights:** Grammar tasks for SLI, Score tracking, Age-based comparisons, Research-backed exercises, Progress monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


### PC

[App page](https://appshunter.io/ios/app/pc-obs/id1499724343)

This tool collects observational data for research purposes. Data is sent to a companion dashboard for analysis and reporting. It is designed for educational and research applications.

**Highlights:** Observational data collection, Data transmission to dashboard, View observational reports, Research tool, Educational application

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

**In-app purchases:** none


## Frequently asked questions

### Is Grammaggio free?

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

### Is PC free?

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

### Which has better reviews, Grammaggio or PC?

Grammaggio and PC are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Grammaggio or PC have ads?

Neither Grammaggio nor PC shows ads.

### Which is updated more often, Grammaggio or PC?

Grammaggio ships an update every 30 months, and PC every 10 months. Most recently, Grammaggio was updated on September 27, 2026 and PC on September 21, 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.*