# KTS vs Document Authorization

The clearest difference is update cadence: Document Authorization at every 4 days against KTS's every 5 weeks. KTS's advantage is iOS requirement (12.0 vs 15.1). 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.

KTS ships an update every 5 weeks, Document Authorization every 4 days. The most recent releases landed on October 1, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | KTS | Document Authorization |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/kts-korloy-total-service/id1066158688/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Monetization | Free | — |
| Size | 53 MB | 34 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [KORLOY](https://appshunter.io/developer/494687121) | [Focus Softnet Pvt Ltd.](https://appshunter.io/developer/820925199) |

## What reviewers say

### KTS

[App page](https://appshunter.io/ios/app/kts-korloy-total-service/id1066158688)

This metalworking app provides optimal cutting condition calculations for turning, milling, grooving, and drilling. It also helps users find corresponding Korloy products for their current inserts, enhancing user convenience in metalworking tasks.

**Highlights:** Optimal cutting condition calculator, Turning, milling, grooving, drilling calculations, Basic and expert calculation modes, Insert to Korloy product converter, Metalworking information resource

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

**In-app purchases:** none


### Document Authorization

[App page](https://appshunter.io/ios/app/document-authorization/id6761008682)

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

**In-app purchases:** none


## Frequently asked questions

### Is KTS free?

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

### Is Document Authorization free?

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

### Do KTS or Document Authorization have ads?

Neither KTS nor Document Authorization shows ads.

### Which is updated more often, KTS or Document Authorization?

KTS ships an update every 5 weeks, and Document Authorization every 4 days. Most recently, KTS was updated on October 1, 2026 and Document Authorization on September 19, 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.*