# One Window vs MKS GMAT

The clearest difference is ads: MKS GMAT at none against One Window's shown. MKS GMAT also leads on iOS requirement (12.0 vs 15.1). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on September 10, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | One Window | MKS GMAT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Size | 20 MB | 35 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Campusroot Edutech Private Limited](https://appshunter.io/developer/1741558495) | [INFLANCER TECHNOLOGY PVT. LTD.](https://appshunter.io/developer/1760161904) |

## What reviewers say

### One Window

[App page](https://appshunter.io/ios/app/one-window/id6670320345)

**Features:** macOS Compatibility

**In-app purchases:** none


### MKS GMAT

[App page](https://appshunter.io/ios/app/mks-gmat/id6744753565)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is One Window free?

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

### Is MKS GMAT free?

MKS GMAT is free to download, with no in-app purchases.

### Do One Window or MKS GMAT have ads?

One Window shows ads; MKS GMAT does not.

### Which is updated more often, One Window or MKS GMAT?

One Window ships an update every 2 weeks, and MKS GMAT every 2 weeks. Most recently, One Window was updated on September 10, 2026 and MKS GMAT 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.*