# kt world vs Quiet

The clearest difference is price: kt world at Free against Quiet's $3.99. kt world also leads on iOS requirement (13.0 vs 17.0). Quiet's advantage is update cadence (every 3 days vs every 26 months). On ads, in-app purchases and device support there is nothing between them.

kt world is free to download; Quiet costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

kt world ships an update every 26 months, Quiet every 3 days. Both last shipped on September 15, 2026.

## The numbers

| Metric | kt world | Quiet |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/quiet-sms-classifier/id6739860634/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 26 months | **Every 3 days** |
| Monetization | — | Paid |
| Size | 184 MB | 7 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Shunde Kingtec Appliance Co., Ltd.](https://appshunter.io/developer/1571842390) | [冠弛 任](https://appshunter.io/developer/1722508290) |

## What reviewers say

### kt world

[App page](https://appshunter.io/ios/app/kt-world/id1580963312)

**In-app purchases:** none


### Quiet

[App page](https://appshunter.io/ios/app/quiet-sms-classifier/id6739860634)

This app filters and manages spam messages to keep your SMS inbox clean and organized. It offers flexible rule settings for blocking unwanted messages and categorizing important ones. Local filtering technology ensures your data remains private and secure on your device.

**Highlights:** Spam message filtering, Message categorization, Flexible rule settings, Local data filtering, User-friendly interface

**In-app purchases:** none


## Frequently asked questions

### Is kt world free?

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

### Is Quiet free?

Quiet costs $3.99, with no in-app purchases.

### Do kt world or Quiet have ads?

Neither kt world nor Quiet shows ads.

### Which is updated more often, kt world or Quiet?

kt world ships an update every 26 months, and Quiet every 3 days. Most recently, kt world was updated on September 15, 2026 and Quiet on September 15, 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.*