# MobileDetect vs Spanish SFST

The clearest difference is price: MobileDetect at Free against Spanish SFST's $2.99. MobileDetect also leads on update cadence (every 6 weeks vs every 9 months) and device support (3 vs 1). Spanish SFST's advantage is review sentiment (100% vs 82%). On rating, ratings volume, ads and in-app purchases there is nothing between them.

MobileDetect is free to download; Spanish SFST costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Spanish SFST holds the better App Store score, 4.6 against 4.4. Both are backed by a comparable volume of ratings — 25 and 10 respectively. Written reviews point the same way: 82% of MobileDetect's written reviews are positive against 100% of Spanish SFST's.

MobileDetect ships an update every 6 weeks, Spanish SFST every 9 months. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | MobileDetect | Spanish SFST |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [4.4 (25 ratings)](https://appshunter.io/ios/app/mobiledetect/id1088331100/reviews) | **[4.6 (10 ratings)](https://appshunter.io/ios/app/spanish-sfst/id6670778840/reviews)** |
| Number of ratings | **25** | 10 |
| Positive reviews | 81.8% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 9 months |
| Monetization | **Free** | Paid |
| Size | 224 MB | 3 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [DetectaChem, LLC](https://appshunter.io/developer/1088331099) | [Jacob Capito](https://appshunter.io/developer/552791624) |

## 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


### Spanish SFST

[App page](https://appshunter.io/ios/app/spanish-sfst/id6670778840)

This app assists law enforcement officers in administering Standardized Field Sobriety Tests (SFST) in Spanish. It provides clear audio prompts and translations to ensure effective communication and fair testing for Spanish-speaking individuals.

**Highlights:** Spanish audio prompts for instructions, Spanish Miranda warning, Step-by-step guidance for SFST components, Case law supporting app usage, Streamlined navigation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MobileDetect free?

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

### Is Spanish SFST free?

Spanish SFST costs $2.99, with no in-app purchases.

### Which has better reviews, MobileDetect or Spanish SFST?

Spanish SFST is rated higher. MobileDetect averages 4.4 out of 5 from 25 ratings, while Spanish SFST averages 4.6 from 10 ratings.

### Do MobileDetect or Spanish SFST have ads?

Neither MobileDetect nor Spanish SFST shows ads.

### Which is updated more often, MobileDetect or Spanish SFST?

MobileDetect ships an update every 6 weeks, and Spanish SFST every 9 months. Most recently, MobileDetect was updated on November 6, 2026 and Spanish SFST on November 4, 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.*