# Spell Grammar vs Explorion | Explore & Learn

The clearest difference is in-app purchases: Spell Grammar at none against Explorion | Explore & Learn's 1. Explorion | Explore & Learn's advantage is ads (none vs shown) and update cadence (weekly vs every 61 months). On price and device support there is nothing between them.

Both are free to download. Explorion | Explore & Learn sells 1 one-off in-app purchase. Spell Grammar asks for nothing beyond the download.

Spell Grammar ships an update every 61 months, Explorion | Explore & Learn weekly. The most recent releases landed on October 5, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Spell Grammar | Explorion | Explore & Learn |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 61 months | **Weekly** |
| Monetization | — | Free |
| Size | 7 MB | 57 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hafiz Musa](https://appshunter.io/developer/735873899) | [V&T TECHNOLOGIES PTY. LTD.](https://appshunter.io/developer/1073524520) |

## What reviewers say

### Spell Grammar

[App page](https://appshunter.io/ios/app/spell-grammar/id1151804350)

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

**In-app purchases:** none


### Explorion | Explore & Learn

[App page](https://appshunter.io/ios/app/explorion-explore-and-learn/id6758781384)

This interactive app offers over 200 STEM activities for children, transforming complex subjects into engaging 3D experiences. It provides a safe, hands-on digital laboratory for exploring physics, math, biology, engineering, and astronomy.

**Highlights:** Interactive 3D STEM labs, Bite-sized learning modules, Hands-on object manipulation, Content for all ages, Safe and focused learning environment, Physics, math, biology, engineering, astronomy modules

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Explorion Premium | $9.99 | one-time |


## Frequently asked questions

### Is Spell Grammar free?

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

### Is Explorion | Explore & Learn free?

Explorion | Explore & Learn is free to download, with in-app purchases available.

### Do Spell Grammar or Explorion | Explore & Learn have ads?

Spell Grammar shows ads; Explorion | Explore & Learn does not.

### Which is updated more often, Spell Grammar or Explorion | Explore & Learn?

Spell Grammar ships an update every 61 months, and Explorion | Explore & Learn weekly. Most recently, Spell Grammar was updated on October 5, 2026 and Explorion | Explore & Learn on October 11, 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.*