# KTool vs Aviary for reMarkable

The clearest difference is update cadence: Aviary for reMarkable at every 2 days against KTool's fortnightly. KTool's advantage is iOS requirement (15.6 vs 26.2). On price, ads, 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.

KTool ships an update fortnightly, Aviary for reMarkable every 2 days. The most recent releases landed on September 19, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | KTool | Aviary for reMarkable |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 days** |
| Size | 47 MB | 1 MB |
| Requires iOS | **15.6** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Kutai](https://appshunter.io/developer/528199380) | [Robert Scott](https://appshunter.io/developer/1880688122) |

## What reviewers say

### KTool

[App page](https://appshunter.io/ios/app/ktool/id6746480823)

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

**In-app purchases:** none


### Aviary for reMarkable

[App page](https://appshunter.io/ios/app/aviary-for-remarkable/id6759794422)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KTool free?

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

### Is Aviary for reMarkable free?

Aviary for reMarkable is free to download, with no in-app purchases.

### Do KTool or Aviary for reMarkable have ads?

Neither KTool nor Aviary for reMarkable shows ads.

### Which is updated more often, KTool or Aviary for reMarkable?

KTool ships an update fortnightly, and Aviary for reMarkable every 2 days. Most recently, KTool was updated on September 19, 2026 and Aviary for reMarkable on September 16, 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.*