# TetherX vs Cobalt Link+

The clearest difference is update cadence: TetherX at every 2 months against Cobalt Link+'s every 6 months. Cobalt Link+'s advantage is iOS requirement (13.0 vs 18.4). 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.

TetherX ships an update every 2 months, Cobalt Link+ every 6 months. The most recent releases landed on September 19, 2026 and January 28, 2026 respectively.

## The numbers

| Metric | TetherX | Cobalt Link+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/tetherx/id1046299294/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 90.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Free | — |
| Size | 3 MB | 30 MB |
| Requires iOS | 18.4 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tether Technology Ltd](https://appshunter.io/developer/1046299293) | [VNC AUTOMOTIVE LIMITED](https://appshunter.io/developer/1494461328) |

## What reviewers say

### TetherX

[App page](https://appshunter.io/ios/app/tetherx/id1046299294)

This app provides unified monitoring and control of physical infrastructure, including video surveillance, access systems, and sensors. It offers real-time data, instant notifications, and secure management for professionals across various sites.

**Highlights:** Unified monitoring of video, sensors, and access, Real-time sensor data and environmental monitoring, Alarm status and instant push notifications, Access control management, Secure biometric authentication, Fast, native performance

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

**In-app purchases:** none


### Cobalt Link+

[App page](https://appshunter.io/ios/app/cobalt-link/id1608536466)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TetherX free?

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

### Is Cobalt Link+ free?

Cobalt Link+ is free to download, with no in-app purchases.

### Do TetherX or Cobalt Link+ have ads?

Neither TetherX nor Cobalt Link+ shows ads.

### Which is updated more often, TetherX or Cobalt Link+?

TetherX ships an update every 2 months, and Cobalt Link+ every 6 months. Most recently, TetherX was updated on September 19, 2026 and Cobalt Link+ on January 28, 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.*