# T15 Controller vs CTT Mobile

The clearest difference is update cadence: CTT Mobile at every 2 months against T15 Controller's every 9 months. T15 Controller's advantage is iOS requirement (11.3 vs 13.0). 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.

T15 Controller ships an update every 9 months, CTT Mobile every 2 months. The most recent releases landed on September 28, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | T15 Controller | CTT Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (7 ratings)](https://appshunter.io/ios/app/ctt-mobile/id1610872429/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 10 MB | 59 MB |
| Requires iOS | **11.3** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Advanced Telemetry Systems, Inc.](https://appshunter.io/developer/1472426237) | [Cellular Tracking Technologies](https://appshunter.io/developer/1588087267) |

## What reviewers say

### T15 Controller

[App page](https://appshunter.io/ios/app/t15-controller/id1472426238)

**Features:** macOS Compatibility

**In-app purchases:** none


### CTT Mobile

[App page](https://appshunter.io/ios/app/ctt-mobile/id1610872429)

Monitor real-time telemetry from your CTT devices. Adjust device duty cycles and connect to Bluetooth-enabled products like the Sidekick and Node Version 3.

**Highlights:** View latest telemetry data, Assign device duty cycle changes, Connect to Bluetooth enabled CTT products, Monitor Sidekick and Node Version 3

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is T15 Controller free?

T15 Controller is free to download, with no in-app purchases.

### Is CTT Mobile free?

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

### Do T15 Controller or CTT Mobile have ads?

Neither T15 Controller nor CTT Mobile shows ads.

### Which is updated more often, T15 Controller or CTT Mobile?

T15 Controller ships an update every 9 months, and CTT Mobile every 2 months. Most recently, T15 Controller was updated on September 28, 2026 and CTT Mobile on September 29, 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.*