# TcnApp vs Sierra Cascade

The clearest difference is update cadence: TcnApp at every 11 months against Sierra Cascade's every 40 months. Sierra Cascade's advantage is iOS requirement (9.0 vs 11.0). 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.

TcnApp ships an update every 11 months, Sierra Cascade every 40 months. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | TcnApp | Sierra Cascade |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 months** | Every 40 months |
| Size | 7 MB | 6 MB |
| Requires iOS | 11.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TeleControlNet](https://appshunter.io/developer/1104167649) | [Corvid Apps LLC](https://appshunter.io/developer/554892663) |

## What reviewers say

### TcnApp

[App page](https://appshunter.io/ios/app/tcnapp/id1104167650)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sierra Cascade

[App page](https://appshunter.io/ios/app/sierra-cascade/id1406180660)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TcnApp free?

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

### Is Sierra Cascade free?

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

### Do TcnApp or Sierra Cascade have ads?

Neither TcnApp nor Sierra Cascade shows ads.

### Which is updated more often, TcnApp or Sierra Cascade?

TcnApp ships an update every 11 months, and Sierra Cascade every 40 months. Most recently, TcnApp was updated on October 7, 2026 and Sierra Cascade on October 13, 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.*