# Ones app vs ODK Mongolia

The clearest difference is update cadence: ODK Mongolia at weekly against Ones app's every 4 weeks. 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.

Ones app ships an update every 4 weeks, ODK Mongolia weekly. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Ones app | ODK Mongolia |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Weekly** |
| Size | 73 MB | 38 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Gan-erdene Bayartsagaan](https://appshunter.io/developer/1760497947) | [Bayasgalan Dashdorj](https://appshunter.io/developer/1532733851) |

## What reviewers say

### Ones app

[App page](https://appshunter.io/ios/app/ones-app/id6444048146)

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

**In-app purchases:** none


### ODK Mongolia

[App page](https://appshunter.io/ios/app/odk-mongolia/id6622728040)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ones app free?

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

### Is ODK Mongolia free?

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

### Do Ones app or ODK Mongolia have ads?

Neither Ones app nor ODK Mongolia shows ads.

### Which is updated more often, Ones app or ODK Mongolia?

Ones app ships an update every 4 weeks, and ODK Mongolia weekly. Most recently, Ones app was updated on October 10, 2026 and ODK Mongolia 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.*