# Intergalactic Algebra vs Grammar box

The clearest difference is in-app purchases: Grammar box at none against Intergalactic Algebra's 10. Grammar box also leads on update cadence (daily vs every 3 weeks) and iOS requirement (11.0 vs 13.0). On price, ads and device support there is nothing between them.

Both are free to download. Intergalactic Algebra sells 10 one-off in-app purchases. Grammar box asks for nothing beyond the download.

Intergalactic Algebra ships an update every 3 weeks, Grammar box daily. The most recent releases landed on October 9, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Intergalactic Algebra | Grammar box |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/intergalactic-algebra/id1550524246/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 280 MB | 32 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Intergalactic Education LLC](https://appshunter.io/developer/1364648815) | [Believe Creative ITES Pvt Ltd](https://appshunter.io/developer/1085428177) |

## What reviewers say

### Intergalactic Algebra

[App page](https://appshunter.io/ios/app/intergalactic-algebra/id1550524246)

Engage with algebra through a collection of space-themed games. Solve mathematical problems to launch rockets and advance your skills. The app aligns with Common Core standards and offers optional reports for progress analysis.

**Highlights:** Algebraic problem-solving, Rocket launching gameplay, Common Core aligned math, Proficiency assessment, Optional progress reports, Rewarding gameplay

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Factoring Rocket Report | $2.99 | one-time |
| Functions Rocket Report | $2.99 | one-time |
| Addition Subtraction Report | $2.99 | one-time |
| Multiples of Ten Report | $2.99 | one-time |
| Num Of Solutions Report | $2.99 | one-time |
| Quadratics Rocket Report | $2.99 | one-time |
| Rates of Change Report | $2.99 | one-time |
| Word Problems Rocket Report | $2.99 | one-time |
| Rocket Trivia Rocket Report | $2.99 | one-time |
| Progressions Report | $2.99 | one-time |


### Grammar box

[App page](https://appshunter.io/ios/app/grammar-box/id1607534069)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Intergalactic Algebra free?

Intergalactic Algebra is free to download, with in-app purchases available.

### Is Grammar box free?

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

### Do Intergalactic Algebra or Grammar box have ads?

Neither Intergalactic Algebra nor Grammar box shows ads.

### Which is updated more often, Intergalactic Algebra or Grammar box?

Intergalactic Algebra ships an update every 3 weeks, and Grammar box daily. Most recently, Intergalactic Algebra was updated on October 9, 2026 and Grammar box on October 13, 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.*