# UN Decoder & Hazmat vs Smart DGR

The clearest difference is iOS requirement: UN Decoder & Hazmat at 13.0 against Smart DGR's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. UN Decoder & Hazmat sells 2 in-app purchases, starting at $0.99 per month and Smart DGR sells 2 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

UN Decoder & Hazmat ships an update monthly, Smart DGR every 3 weeks. The most recent releases landed on October 2, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | UN Decoder & Hazmat | Smart DGR |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Size | 47 MB | 16 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [AYLIN BICEN](https://appshunter.io/developer/1839275591) | [AvioDev Solutions LLC](https://appshunter.io/developer/1800257240) |

## What reviewers say

### UN Decoder & Hazmat

[App page](https://appshunter.io/ios/app/un-decoder-and-hazmat/id6752623945)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Membeship ( 1 Month ) | $0.99 | per month |
| Pro Membership ( 1 Year ) | $9.99 | per year |


### Smart DGR

[App page](https://appshunter.io/ios/app/smart-dgr/id6796352530)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Smart DGR Pro Monthly | $8.99 | per month |
| Smart DGR Pro Yearly | $74.99 | per year |


## Frequently asked questions

### Is UN Decoder & Hazmat free?

UN Decoder & Hazmat is free to download, with in-app purchases available.

### Is Smart DGR free?

Smart DGR is free to download, with in-app purchases available.

### Do UN Decoder & Hazmat or Smart DGR have ads?

Neither UN Decoder & Hazmat nor Smart DGR shows ads.

### Which is updated more often, UN Decoder & Hazmat or Smart DGR?

UN Decoder & Hazmat ships an update monthly, and Smart DGR every 3 weeks. Most recently, UN Decoder & Hazmat was updated on October 2, 2026 and Smart DGR on October 8, 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.*