# Grade One Science vs MulZap

The clearest difference is in-app purchases: Grade One Science at none against MulZap's 3. Grade One Science also leads on iOS requirement (13.0 vs 15.0). MulZap's advantage is update cadence (weekly vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. MulZap sells 3 one-off in-app purchases. Grade One Science asks for nothing beyond the download.

Grade One Science ships an update every 4 months, MulZap weekly. The most recent releases landed on September 18, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Grade One Science | MulZap |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/grade-one-science/id6736531855/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Free | — |
| Size | 201 MB | 15 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [360ed Pte Ltd](https://appshunter.io/developer/1459468188) | [Francois GUILLET](https://appshunter.io/developer/6779992453) |

## What reviewers say

### Grade One Science

[App page](https://appshunter.io/ios/app/grade-one-science/id6736531855)

This app introduces fundamental science concepts for first graders through interactive lessons, engaging videos, and immersive 3D models. It supports classroom learning and independent exploration, helping to improve critical thinking and knowledge retention.

**Highlights:** Interactive lessons, Engaging educational videos, Immersive 3D models, Practice exercises, Progress tracking

**Features:** macOS Compatibility

**In-app purchases:** none


### MulZap

[App page](https://appshunter.io/ios/app/mulzap/id6779992451)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small tip | $1.99 | one-time |
| Medium tip | $3.99 | one-time |
| Large tip | $8.99 | one-time |


## Frequently asked questions

### Is Grade One Science free?

Grade One Science is free to download, with no in-app purchases.

### Is MulZap free?

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

### Do Grade One Science or MulZap have ads?

Neither Grade One Science nor MulZap shows ads.

### Which is updated more often, Grade One Science or MulZap?

Grade One Science ships an update every 4 months, and MulZap weekly. Most recently, Grade One Science was updated on September 18, 2026 and MulZap on October 5, 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.*