# Slow Them Down vs TayScan

The clearest difference is update cadence: TayScan at monthly against Slow Them Down's every 2 months. Slow Them Down's advantage is iOS requirement (17.0 vs 26.5). 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.

Slow Them Down ships an update every 2 months, TayScan monthly. The most recent releases landed on October 16, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Slow Them Down | TayScan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/slow-them-down/id6760197118/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | — |
| Size | 4 MB | 9 MB |
| Requires iOS | **17.0** | 26.5 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 12+ | 4+ |
| Developer | [Duncan Grazier](https://appshunter.io/developer/1883130848) | [Niels Hollatz](https://appshunter.io/developer/6778678853) |

## What reviewers say

### Slow Them Down

[App page](https://appshunter.io/ios/app/slow-them-down/id6760197118)

This tool transforms your iPhone into a traffic speed study device. Record passing vehicles, mark their positions frame by frame, and obtain precise speed estimates. Generate detailed reports for community advocacy and traffic calming initiatives.

**Highlights:** Record passing traffic videos, Frame-by-frame vehicle position marking, Accurate speed estimation (MPH), Log vehicle type, direction, and timestamp, Generate PDF traffic reports, Automatic face and license plate blurring, Data for traffic calming advocacy

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

**In-app purchases:** none


### TayScan

[App page](https://appshunter.io/ios/app/tayscan/id6798300346)

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

**In-app purchases:** none


## Frequently asked questions

### Is Slow Them Down free?

Slow Them Down is free to download, with no in-app purchases.

### Is TayScan free?

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

### Do Slow Them Down or TayScan have ads?

Neither Slow Them Down nor TayScan shows ads.

### Which is updated more often, Slow Them Down or TayScan?

Slow Them Down ships an update every 2 months, and TayScan monthly. Most recently, Slow Them Down was updated on October 16, 2026 and TayScan on October 24, 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.*