# Slinex Smart Call vs Trudian

The clearest difference is update cadence: Trudian at every 2 weeks against Slinex Smart Call's every 6 weeks. 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.

Slinex Smart Call ships an update every 6 weeks, Trudian every 2 weeks. The most recent releases landed on October 6, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Slinex Smart Call | Trudian |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 170 MB | 85 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Slinex Technology Limited.](https://appshunter.io/developer/1044975120) | [Guangdong Trudian Technology Co., Ltd.](https://appshunter.io/developer/1131111694) |

## What reviewers say

### Slinex Smart Call

[App page](https://appshunter.io/ios/app/slinex-smart-call/id1574863919)

This application allows you to receive calls from your Slinex smart doorbell on your phone or tablet. View live camera feeds, access call archives, and remotely unlock doors from anywhere with an internet connection.

**Highlights:** Receive doorbell calls on your device, View live camera feeds, Remotely unlock doors, Access call and video archives, Two-way audio communication, Switch between SD/HD resolution

**In-app purchases:** none


### Trudian

[App page](https://appshunter.io/ios/app/trudian/id6449507063)

**In-app purchases:** none


## Frequently asked questions

### Is Slinex Smart Call free?

Slinex Smart Call is free to download, with no in-app purchases.

### Is Trudian free?

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

### Do Slinex Smart Call or Trudian have ads?

Neither Slinex Smart Call nor Trudian shows ads.

### Which is updated more often, Slinex Smart Call or Trudian?

Slinex Smart Call ships an update every 6 weeks, and Trudian every 2 weeks. Most recently, Slinex Smart Call was updated on October 6, 2026 and Trudian on October 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.*