# 오픈카드 vs ONTREE 지구를 지키는 작은 습관 온트리

The clearest difference is update cadence: ONTREE 지구를 지키는 작은 습관 온트리 at every 3 weeks against 오픈카드's every 3 months. 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.

오픈카드 ships an update every 3 months, ONTREE 지구를 지키는 작은 습관 온트리 every 3 weeks. The most recent releases landed on October 15, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | 오픈카드 | ONTREE 지구를 지키는 작은 습관 온트리 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 14.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 19 MB | 37 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [DualAuth, LLC.](https://appshunter.io/developer/1308671571) | [Kyungran Kim](https://appshunter.io/developer/1443699006) |

## What reviewers say

### 오픈카드

[App page](https://appshunter.io/ios/app/id1486541438)

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

**In-app purchases:** none


### ONTREE 지구를 지키는 작은 습관 온트리

[App page](https://appshunter.io/ios/app/ontree/id1610045371)

Cultivate eco-friendly habits by completing environmental missions and tracking your progress. Earn points to plant real trees and see your positive impact on the planet. Join your family and friends in collective environmental action.

**Highlights:** Complete 12 environmental missions, Earn points for missions and check-ins, Plant real trees with earned points, Track carbon reduction, View rankings among friends and groups, Participate in offline and online events

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 오픈카드 free?

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

### Is ONTREE 지구를 지키는 작은 습관 온트리 free?

ONTREE 지구를 지키는 작은 습관 온트리 is free to download, with no in-app purchases.

### Do 오픈카드 or ONTREE 지구를 지키는 작은 습관 온트리 have ads?

Neither 오픈카드 nor ONTREE 지구를 지키는 작은 습관 온트리 shows ads.

### Which is updated more often, 오픈카드 or ONTREE 지구를 지키는 작은 습관 온트리?

오픈카드 ships an update every 3 months, and ONTREE 지구를 지키는 작은 습관 온트리 every 3 weeks. Most recently, 오픈카드 was updated on October 15, 2026 and ONTREE 지구를 지키는 작은 습관 온트리 on September 30, 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.*