# Mathship Numberline vs India Authors Academy

The clearest difference is in-app purchases: Mathship Numberline at none against India Authors Academy's 1. Mathship Numberline also leads on update cadence (every 2 months vs every 9 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. India Authors Academy sells 1 one-off in-app purchase. Mathship Numberline asks for nothing beyond the download.

Mathship Numberline ships an update every 2 months, India Authors Academy every 9 months. Both last shipped on October 30, 2026.

## The numbers

| Metric | Mathship Numberline | India Authors Academy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/mathship-numberline/id6450893250/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 9 months |
| Monetization | Free | — |
| Size | 277 MB | 84 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Playpower Labs, LLC](https://appshunter.io/developer/555270558) | [TagMango Inc](https://appshunter.io/developer/1611765353) |

## What reviewers say

### Mathship Numberline

[App page](https://appshunter.io/ios/app/mathship-numberline/id6450893250)

This educational game uses a naval battle theme to teach number sense, fractions, and estimation. Players guess enemy ship locations on a number line to reinforce mathematical concepts. It's designed by learning scientists for learners of all ages.

**Highlights:** Interactive number line for estimation, Teaches whole numbers, fractions, and decimals, Naval battle gameplay mechanics, Multiple difficulty levels, Unlimited practice questions in certain levels, Enhances number sense and estimation skills

**Features:** macOS Compatibility

**In-app purchases:** none


### India Authors Academy

[App page](https://appshunter.io/ios/app/india-authors-academy/id6478291338)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| India Authors Academy | $59.99 | one-time |


## Frequently asked questions

### Is Mathship Numberline free?

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

### Is India Authors Academy free?

India Authors Academy is free to download, with in-app purchases available.

### Do Mathship Numberline or India Authors Academy have ads?

Neither Mathship Numberline nor India Authors Academy shows ads.

### Which is updated more often, Mathship Numberline or India Authors Academy?

Mathship Numberline ships an update every 2 months, and India Authors Academy every 9 months. Most recently, Mathship Numberline was updated on October 30, 2026 and India Authors Academy on October 30, 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.*