# Reduce Your CO2 vs Tree Leaf Identifier

The clearest difference is in-app purchases: Reduce Your CO2 at none against Tree Leaf Identifier's 2. Reduce Your CO2 also leads on update cadence (every 8 days vs every 3 weeks) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Tree Leaf Identifier sells 2 in-app purchases, starting at $7.99 per 7 days. Reduce Your CO2 asks for nothing beyond the download.

Reduce Your CO2 ships an update every 8 days, Tree Leaf Identifier every 3 weeks. The most recent releases landed on October 12, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Reduce Your CO2 | Tree Leaf Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (25 ratings)](https://appshunter.io/ios/app/tree-leaf-identifier/id6752708557/reviews)** |
| Number of ratings | — | **25** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 66 MB | 32 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Slovak Eco Quality](https://appshunter.io/developer/1726838652) | [Lidwien Veugen](https://appshunter.io/developer/1448601467) |

## What reviewers say

### Reduce Your CO2

[App page](https://appshunter.io/ios/app/reduce-your-co2-help-planet/id6476467272)

**Features:** macOS Compatibility

**In-app purchases:** none


### Tree Leaf Identifier

[App page](https://appshunter.io/ios/app/tree-leaf-identifier/id6752708557)

Instantly identify tree species by taking a photo of a leaf. Explore nature, learn fascinating facts about trees, and build a personal collection of your discoveries. This app turns any outdoor excursion into an educational adventure.

**Highlights:** Identify trees from leaf photos, Learn tree facts and characteristics, Build a personal tree collection, Fast and accurate identification, Explore nature and outdoor learning

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tree Leaf Identifier App - Pro | $7.99 | per 7 days |
| Tree Leaf Identifier App - Pro | $29.99 | per year |


## Frequently asked questions

### Is Reduce Your CO2 free?

Reduce Your CO2 is free to download, with no in-app purchases.

### Is Tree Leaf Identifier free?

Tree Leaf Identifier is free to download, with in-app purchases available.

### Do Reduce Your CO2 or Tree Leaf Identifier have ads?

Neither Reduce Your CO2 nor Tree Leaf Identifier shows ads.

### Which is updated more often, Reduce Your CO2 or Tree Leaf Identifier?

Reduce Your CO2 ships an update every 8 days, and Tree Leaf Identifier every 3 weeks. Most recently, Reduce Your CO2 was updated on October 12, 2026 and Tree Leaf Identifier on October 11, 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.*