# Odontología AR vs Ulern

The clearest difference is in-app purchases: Odontología AR at none against Ulern's 6. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Ulern sells 6 in-app purchases, starting at $0.99 per 7 days. Odontología AR asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 6 days. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Odontología AR | Ulern |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 days | Every 6 days |
| Size | 86 MB | 77 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Yoy.cl](https://appshunter.io/developer/1402794387) | [Ulern](https://appshunter.io/developer/1817026359) |

## What reviewers say

### Odontología AR

[App page](https://appshunter.io/ios/app/odontologia-ar/id1573934125)

**In-app purchases:** none


### Ulern

[App page](https://appshunter.io/ios/app/ulern/id6736619861)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ulern Plus Semanal | $0.99 | per 7 days |
| Ulern Plus | $1.99 | per month |
| Ulern Plus Semanal | $3.99 | per 7 days |
| Ulern Plus | $8.99 | per month |
| Ulern Plus Anual | $14.99 | per year |
| Ulern Plus | $79.99 | per year |


## Frequently asked questions

### Is Odontología AR free?

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

### Is Ulern free?

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

### Do Odontología AR or Ulern have ads?

Neither Odontología AR nor Ulern shows ads.

### Which is updated more often, Odontología AR or Ulern?

Odontología AR ships an update every 6 days, and Ulern every 6 days. Most recently, Odontología AR was updated on October 7, 2026 and Ulern on October 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*