# Grade 7 Math & Science vs CTGi

The clearest difference is price: CTGi at Free against Grade 7 Math & Science's $1.99. CTGi also leads on rating (5.0 vs 1.0) and iOS requirement (13.0 vs 18.2). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

CTGi is free to download; Grade 7 Math & Science costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

CTGi holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 8, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Grade 7 Math & Science | CTGi |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/grade-7-math-and-science/id412694407/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ctgi/id1342875195/reviews)** |
| Number of ratings | 1 | **2** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Paid | **Free** |
| Size | 3 MB | 23 MB |
| Requires iOS | 18.2 | **13.0** |
| Devices | **iPhone, iPad** | iPad |
| Age rating | 4+ | 17+ |
| Developer | [Prachi Pimpalkhare](https://appshunter.io/developer/359099311) | [iSimulate Pty Ltd](https://appshunter.io/developer/494486341) |

## What reviewers say

### Grade 7 Math & Science

[App page](https://appshunter.io/ios/app/grade-7-math-and-science/id412694407)

This app offers interactive quizzes for 7th-grade math and science, providing instant feedback and progress tracking. It's designed for children to learn effectively at home or in class, with offline access and a child-friendly interface.

**Highlights:** Topic-wise quizzes, Instant feedback, Progress tracking with pie charts, Score reset for retakes, Offline mode, Child-friendly design

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

**In-app purchases:** none


### CTGi

[App page](https://appshunter.io/ios/app/ctgi/id1342875195)

This app simulates a fetal heart rate monitor for obstetric training. It offers a realistic and economical platform for facilitators and students to learn and practice. Utilizing everyday technology, it provides an advanced simulation experience.

**Highlights:** Realistic fetal heart rate monitoring simulation, Economical training solution, Ideal for in-situ training, Advanced obstetric simulation, Built with everyday technology

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Grade 7 Math & Science free?

Grade 7 Math & Science costs $1.99, with no in-app purchases.

### Is CTGi free?

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

### Which has better reviews, Grade 7 Math & Science or CTGi?

CTGi is rated higher. Grade 7 Math & Science averages 1.0 out of 5 from 1 ratings, while CTGi averages 5.0 from 2 ratings.

### Do Grade 7 Math & Science or CTGi have ads?

Neither Grade 7 Math & Science nor CTGi shows ads.

### Which is updated more often, Grade 7 Math & Science or CTGi?

Grade 7 Math & Science ships an update every 3 months, and CTGi every 3 months. Most recently, Grade 7 Math & Science was updated on October 8, 2026 and CTGi on October 2, 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.*