# MobileDetect vs Speed Sign

The clearest difference is review sentiment: MobileDetect at 82% against Speed Sign's 0%. MobileDetect also leads on rating (4.4 vs 3.5) and ratings volume (25 vs 2). Speed Sign's advantage is update cadence (every 2 weeks vs every 6 weeks) and iOS requirement (9.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MobileDetect holds the better App Store score, 4.4 against 3.5. That said, the two scores are not equally well evidenced: MobileDetect has 25 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 82% of MobileDetect's written reviews are positive against 0% of Speed Sign's.

MobileDetect ships an update every 6 weeks, Speed Sign every 2 weeks. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | MobileDetect | Speed Sign |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (25 ratings)](https://appshunter.io/ios/app/mobiledetect/id1088331100/reviews)** | [3.5 (2 ratings)](https://appshunter.io/ios/app/speed-sign/id1439604258/reviews) |
| Number of ratings | **25** | 2 |
| Positive reviews | **81.8% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 224 MB | 6 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [DetectaChem, LLC](https://appshunter.io/developer/1088331099) | [Applied Concepts Incorporated](https://appshunter.io/developer/1439604257) |

## What reviewers say

### MobileDetect

[App page](https://appshunter.io/ios/app/mobiledetect/id1088331100)

This app transforms your smartphone into a presumptive drug detection tool using specialized test pouches. It offers automated results in seconds for a wide range of substances, with features for report creation and sharing.

**Highlights:** Automated drug detection, Detects multiple substances, Non-visible residue testing, Test reports with GPS and images, Instant report sharing, Tutorial mode and training videos

**Features:** Vision Pro support

**In-app purchases:** none


### Speed Sign

[App page](https://appshunter.io/ios/app/speed-sign/id1439604258)

Configure and manage a radar speed display unit wirelessly. Program data types, set alerts, create custom messages, and schedule display times. Access internal device statistics and download traffic data for analysis.

**Highlights:** Wireless programming of radar displays, Manage display alerts, Create custom text messages, Set display calendar schedules, Access battery and solar panel efficiency, Download traffic statistics

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MobileDetect free?

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

### Is Speed Sign free?

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

### Which has better reviews, MobileDetect or Speed Sign?

MobileDetect is rated higher. MobileDetect averages 4.4 out of 5 from 25 ratings, while Speed Sign averages 3.5 from 2 ratings.

### Do MobileDetect or Speed Sign have ads?

Neither MobileDetect nor Speed Sign shows ads.

### Which is updated more often, MobileDetect or Speed Sign?

MobileDetect ships an update every 6 weeks, and Speed Sign every 2 weeks. Most recently, MobileDetect was updated on October 24, 2026 and Speed Sign on October 19, 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.*