# Grade 4 Math & Science vs HT1000 GNSS Tutorial

Grade 4 Math & Science and HT1000 GNSS Tutorial both sit at 5.0 stars, but that hides the real split: 100% of HT1000 GNSS Tutorial's written reviews are positive against 0% of Grade 4 Math & Science's. HT1000 GNSS Tutorial also leads on ratings volume (7 vs 2) and iOS requirement (16 vs 18.2). Grade 4 Math & Science's advantage is price ($1.99 vs $9.99). On rating, update cadence, ads and in-app purchases there is nothing between them.

Grade 4 Math & Science costs $1.99 and HT1000 GNSS Tutorial $9.99 up front. 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 Grade 4 Math & Science against 5.0 for HT1000 GNSS Tutorial. Both are backed by a comparable volume of ratings — 2 and 7 respectively. Written reviews are what separate them: 0% of Grade 4 Math & Science's written reviews are positive against 100% of HT1000 GNSS Tutorial's.

Grade 4 Math & Science ships an update every 3 weeks, HT1000 GNSS Tutorial monthly. The most recent releases landed on September 19, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Grade 4 Math & Science | HT1000 GNSS Tutorial |
| --- | --- | --- |
| Price | **$1.99** | $9.99 |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/grade-4-math-and-science/id520865413/reviews) | [5.0 (7 ratings)](https://appshunter.io/ios/app/ht1000-gnss-tutorial/id1603055605/reviews) |
| Number of ratings | 2 | **7** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Paid | Paid |
| Size | 2 MB | 2 MB |
| Requires iOS | 18.2 | **16** |
| Devices | **iPhone, iPad** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Prachi Pimpalkhare](https://appshunter.io/developer/359099311) | [Terence Way](https://appshunter.io/developer/1576081195) |

## What reviewers say

### Grade 4 Math & Science

[App page](https://appshunter.io/ios/app/grade-4-math-and-science/id520865413)

This app offers interactive quizzes for fourth graders to master math and science concepts. It provides instant feedback, progress tracking with visual charts, and offline access to all content. Designed to be child-friendly and distraction-free, it supports learning at home or in class.

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

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

**In-app purchases:** none


### HT1000 GNSS Tutorial

[App page](https://appshunter.io/ios/app/ht1000-gnss-tutorial/id1603055605)

Learn the pre-flight sequence for an ATR aircraft with a certified instructor. Explore advanced features like holds and alternates using a full-featured emulator.

**Highlights:** ATR pre-flight sequence tutorial, Full-featured emulator, Learn holds and alternates, Expert instruction, Hawaii flight route

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

**In-app purchases:** none


## Frequently asked questions

### Is Grade 4 Math & Science free?

Grade 4 Math & Science costs $1.99, with no in-app purchases.

### Is HT1000 GNSS Tutorial free?

HT1000 GNSS Tutorial costs $9.99, with no in-app purchases.

### Which has better reviews, Grade 4 Math & Science or HT1000 GNSS Tutorial?

Grade 4 Math & Science and HT1000 GNSS Tutorial are both rated 5.0 out of 5 on the App Store, from 2 and 7 ratings respectively.

### Do Grade 4 Math & Science or HT1000 GNSS Tutorial have ads?

Neither Grade 4 Math & Science nor HT1000 GNSS Tutorial shows ads.

### Which is updated more often, Grade 4 Math & Science or HT1000 GNSS Tutorial?

Grade 4 Math & Science ships an update every 3 weeks, and HT1000 GNSS Tutorial monthly. Most recently, Grade 4 Math & Science was updated on September 19, 2026 and HT1000 GNSS Tutorial on September 14, 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.*