# KIS vs D1 Scale

The clearest difference is update cadence: KIS at every 5 days against D1 Scale's fortnightly. KIS also leads on device support (3 vs 1) and iOS requirement (13.0 vs 15.6). On price, ads and in-app purchases there is nothing between them.

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

KIS ships an update every 5 days, D1 Scale fortnightly. The most recent releases landed on September 19, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | KIS | D1 Scale |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Fortnightly |
| Size | 65 MB | 38 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Kettah Pty Ltd](https://appshunter.io/developer/1776602831) | [Mitaco Pty Ltd](https://appshunter.io/developer/1896610803) |

## What reviewers say

### KIS

[App page](https://appshunter.io/ios/app/kis/id6737476620)

**Features:** macOS Compatibility

**In-app purchases:** none


### D1 Scale

[App page](https://appshunter.io/ios/app/d1-scale/id6768855332)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KIS free?

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

### Is D1 Scale free?

D1 Scale is free to download, with no in-app purchases.

### Do KIS or D1 Scale have ads?

Neither KIS nor D1 Scale shows ads.

### Which is updated more often, KIS or D1 Scale?

KIS ships an update every 5 days, and D1 Scale fortnightly. Most recently, KIS was updated on September 19, 2026 and D1 Scale on September 18, 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.*