# The KO App vs RollLab

The clearest difference is in-app purchases: The KO App at none against RollLab's 2. The KO App also leads on update cadence (every 2 days vs every 4 days) and iOS requirement (14.0.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. RollLab sells 2 in-app purchases, starting at $7.00 per month. The KO App asks for nothing beyond the download.

The KO App ships an update every 2 days, RollLab every 4 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | The KO App | RollLab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 4 days |
| Size | 39 MB | 24 MB |
| Requires iOS | **14.0.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Muru Corporation](https://appshunter.io/developer/1157363689) | [Player 2 Technologies](https://appshunter.io/developer/6808415648) |

## What reviewers say

### The KO App

[App page](https://appshunter.io/ios/app/the-ko-app/id1640925614)

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

**In-app purchases:** none


### RollLab

[App page](https://appshunter.io/ios/app/rolllab-study-every-roll/id6808415646)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RollLab Pro Monthly | $7.00 | per month |
| RollLab Pro Yearly | $70.00 | per year |


## Frequently asked questions

### Is The KO App free?

The KO App is free to download, with no in-app purchases.

### Is RollLab free?

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

### Do The KO App or RollLab have ads?

Neither The KO App nor RollLab shows ads.

### Which is updated more often, The KO App or RollLab?

The KO App ships an update every 2 days, and RollLab every 4 days. Most recently, The KO App was updated on October 25, 2026 and RollLab on October 31, 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.*