# Opensignal Speed Test Ad Free vs Serial Control

The clearest difference is review sentiment: Opensignal Speed Test Ad Free at 38% against Serial Control's 0%. Serial Control's advantage is iOS requirement (11.0 vs 15.0). On price, update cadence, 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.

Opensignal Speed Test Ad Free ships an update every 3 weeks, Serial Control every 5 weeks. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Opensignal Speed Test Ad Free | Serial Control |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (18K ratings)](https://appshunter.io/ios/app/opensignal-speed-test-ad-free/id598298030/reviews)** | — |
| Number of ratings | **18K** | — |
| Positive reviews | **37.8% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 18 MB | 6 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Opensignal Inc.](https://appshunter.io/developer/598298033) | [StarTech.com](https://appshunter.io/developer/983360067) |

## What reviewers say

### Opensignal Speed Test Ad Free

[App page](https://appshunter.io/ios/app/opensignal-speed-test-ad-free/id598298030)

Analyze your mobile network performance with detailed speed tests for download, upload, and latency across 3G, 4G/LTE, 5G, and WiFi. Compare network providers in your area and assess video streaming quality for popular platforms. This tool helps you understand the true mobile connectivity you're receiving.

**Highlights:** Download, upload, and latency speed tests, Video streaming quality analysis, Network coverage comparison, Signal dashboard and ping test, Connectivity map, Historical test logs

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Reset Stats
- 🚀 Useful practical tool
- 🚀 Simple, clean interface
- 🚀 Features and Navigate
- 🚀 Works well

**What reviewers complain about**

- 🐛 What he** have they done?
- 🐛 Open signal tower loc not working
- 🐛 Tower location option
- 🐛 Directional Arrow not working
- 🐛 Can no longer point towers

**Reported bugs**

- History is all screwed up, dates don't make sense
- Open signal tower loc not working
- Tower location option not working
- Directional Arrow not working
- Can no longer point towers

**Requested features**

- Reset Stats
- Tower location option
- Dark mode option
- Advanced analytics dashboard
- Cell tower compass


### Serial Control

[App page](https://appshunter.io/ios/app/serial-control/id1126359830)

Create custom interfaces for serial devices from your smartphone or tablet. Design control pages with buttons and sliders, build command libraries, and automate actions based on device responses. Seamlessly integrate with StarTech.com serial products.

**Highlights:** Customizable control interfaces, Command library builder, Event-based action automation, Automatic device detection, Integrated account control, HEX and ASCII command editor

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Opensignal Speed Test Ad Free free?

Opensignal Speed Test Ad Free is free to download, with no in-app purchases.

### Is Serial Control free?

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

### Do Opensignal Speed Test Ad Free or Serial Control have ads?

Neither Opensignal Speed Test Ad Free nor Serial Control shows ads.

### Which is updated more often, Opensignal Speed Test Ad Free or Serial Control?

Opensignal Speed Test Ad Free ships an update every 3 weeks, and Serial Control every 5 weeks. Most recently, Opensignal Speed Test Ad Free was updated on November 6, 2026 and Serial Control on November 2, 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.*