# Open Mat vs DING

The clearest difference is in-app purchases: Open Mat at none against DING's 3. Open Mat also leads on update cadence (daily vs every 3 weeks) and iOS requirement (12.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. DING sells 3 in-app purchases, starting at $4.99 per 7 days. Open Mat asks for nothing beyond the download.

Open Mat ships an update daily, DING every 3 weeks. Both last shipped on October 7, 2026.

## The numbers

| Metric | Open Mat | DING |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/open-mat/id1572498577/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 weeks |
| Monetization | Free | — |
| Size | 33 MB | 45 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [HYPERFAZE, LLC](https://appshunter.io/developer/1146086240) | [Speed AI Labs](https://appshunter.io/developer/1895049591) |

## What reviewers say

### Open Mat

[App page](https://appshunter.io/ios/app/open-mat/id1572498577)

Discover Jiu Jitsu open mat sessions happening in your vicinity. Easily locate training opportunities nearby to enhance your martial arts practice.

**Highlights:** Find Jiu Jitsu open mats, Locate sessions near you, Discover training opportunities

**Features:** macOS Compatibility

**In-app purchases:** none


### DING

[App page](https://appshunter.io/ios/app/ding-boxing-round-timer/id6774922194)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DING Boxing | $4.99 | per 7 days |
| DING Boxing | $29.99 | per year |
| DING Boxing | $39.99 | one-time |


## Frequently asked questions

### Is Open Mat free?

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

### Is DING free?

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

### Do Open Mat or DING have ads?

Neither Open Mat nor DING shows ads.

### Which is updated more often, Open Mat or DING?

Open Mat ships an update daily, and DING every 3 weeks. Most recently, Open Mat was updated on October 7, 2026 and DING on October 7, 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.*