Grammaggio vs PC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Grammaggio
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.
- Grammar tasks for SLI
- Score tracking
- Age-based comparisons
- Research-backed exercises
- Progress monitoring
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Grammaggio is a free app that contains a variety of grammar tasks based on research on the condition of Specific Language Impairment (SLI), a language disorder that delays the mastery of language skills in children who have no hearing loss or other developmental delays. Along with your score, Grammaggio will tell you how you compare to others your age. The Grammaggio app was developed as part of a program of research on SLI. The research is funded by R01DC001803 and R42DC013749. This study did not study the validity of the screening for children speaking African American English (AAE). We express our appreciation for the participation of more than 1,000 people (children, siblings and parents) who have contributed to this longitudinal research project and to the dedicated research staff.
PC
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.
- Observational data collection
- Data transmission to dashboard
- View observational reports
- Research tool
- Educational application
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The PC-Obs App is a tool used in conjunction with the PC-Obs Dashboard. Observational data is transmitted from the accompanying app to the dashboard, where users can view reports of the observational data.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Grammaggio | PC |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 30 months | Every 10 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 9.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 35 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Rice Innovations, LLC | The University of Kansas |
Customer experience
Grammaggio
PC
In-app purchases
Grammaggio
No in-app purchases
PC
No in-app purchases
Questions
Is Grammaggio free?
Is PC free?
Which has better reviews, Grammaggio or PC?
Do Grammaggio or PC have ads?
Which is updated more often, Grammaggio or PC?
Other comparisons
