# Richie Ads Preview vs Unit converter

Richie Ads Preview and Unit converter are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Richie Ads Preview ships an update every 4 months, Unit converter every 3 months. The most recent releases landed on October 13, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Richie Ads Preview | Unit converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/richie-ads-preview/id942903129/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 20 MB | 41 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Richie](https://appshunter.io/developer/608947848) | [Claudio Fusillo](https://appshunter.io/developer/1520006843) |

## What reviewers say

### Richie Ads Preview

[App page](https://appshunter.io/ios/app/richie-ads-preview/id942903129)

This developer tool allows for the testing of MRAID-compatible rich media ads for a specific platform. Users can register for a web console account and then use the app to scan QR codes to preview their ad creatives.

**Highlights:** MRAID-compatible rich media ad testing, QR code scanning for ad preview, Web console integration, Developer tool, Free account registration

**Features:** macOS Compatibility

**In-app purchases:** none


### Unit converter

[App page](https://appshunter.io/ios/app/unit-converter-unitflow/id6760021792)

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

**In-app purchases:** none


## Frequently asked questions

### Is Richie Ads Preview free?

Richie Ads Preview is free to download, with no in-app purchases.

### Is Unit converter free?

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

### Do Richie Ads Preview or Unit converter have ads?

Neither Richie Ads Preview nor Unit converter shows ads.

### Which is updated more often, Richie Ads Preview or Unit converter?

Richie Ads Preview ships an update every 4 months, and Unit converter every 3 months. Most recently, Richie Ads Preview was updated on October 13, 2026 and Unit converter on October 14, 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.*