# KtoTam vs UmKey

The clearest difference is update cadence: UmKey at every 5 days against KtoTam's every 5 months. KtoTam's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.2). On price, review sentiment, 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.

KtoTam ships an update every 5 months, UmKey every 5 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | KtoTam | UmKey |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (27 ratings)](https://appshunter.io/ios/app/ktotam/id1441948447/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 89 MB | 147 MB |
| Requires iOS | **15.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Beward R&D Co., Ltd](https://appshunter.io/developer/960943217) | [UmKey](https://appshunter.io/developer/1759903991) |

## What reviewers say

### KtoTam

[App page](https://appshunter.io/ios/app/ktotam/id1441948447)

Manage and control access to your apartment or residential complex. Receive video calls from intercoms, open doors remotely, and monitor live video feeds. Review call history and share access with family.

**Highlights:** Receive video calls from intercoms, Remotely open doors worldwide, Live video monitoring, Create video screenshots, View call history, Share access with family

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

**In-app purchases:** none


### UmKey

[App page](https://appshunter.io/ios/app/umkey/id6587555505)

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

**In-app purchases:** none


## Frequently asked questions

### Is KtoTam free?

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

### Is UmKey free?

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

### Do KtoTam or UmKey have ads?

Neither KtoTam nor UmKey shows ads.

### Which is updated more often, KtoTam or UmKey?

KtoTam ships an update every 5 months, and UmKey every 5 days. Most recently, KtoTam was updated on October 25, 2026 and UmKey on October 25, 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.*