# ONTREE 지구를 지키는 작은 습관 온트리 vs 탄탄(TanTan)

ONTREE 지구를 지키는 작은 습관 온트리 and 탄탄(TanTan) are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | ONTREE 지구를 지키는 작은 습관 온트리 | 탄탄(TanTan) |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 14.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Free | — |
| Size | 37 MB | 10 MB |
| Requires iOS | **14.0** | 15.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kyungran Kim](https://appshunter.io/developer/1443699006) | [CanvasLab](https://appshunter.io/developer/1637676436) |

## What reviewers say

### 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


### 탄탄(TanTan)

[App page](https://appshunter.io/ios/app/tantan/id1637676314)

**In-app purchases:** none


## Frequently asked questions

### Is ONTREE 지구를 지키는 작은 습관 온트리 free?

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

### Is 탄탄(TanTan) free?

탄탄(TanTan) is free to download, with no in-app purchases.

### Do ONTREE 지구를 지키는 작은 습관 온트리 or 탄탄(TanTan) have ads?

Neither ONTREE 지구를 지키는 작은 습관 온트리 nor 탄탄(TanTan) shows ads.

---

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