# Yengeç e vs U2 AI Carbon

The clearest difference is ads: U2 AI Carbon at none against Yengeç e's shown. U2 AI Carbon also leads on update cadence (weekly vs fortnightly) and device support (3 vs 1). On price, in-app purchases and iOS requirement there is nothing between them.

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

Yengeç e ships an update fortnightly, U2 AI Carbon weekly. Both last shipped on October 28, 2026.

## The numbers

| Metric | Yengeç e | U2 AI Carbon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/u2-ai-carbon/id6759739862/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | — | Free |
| Size | 64 MB | 32 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Salyangoz Teknoloji](https://appshunter.io/developer/1289450911) | [U2 AI STUDIO TEKNOLOJI ANONIM SIRKETI](https://appshunter.io/developer/1858814006) |

## What reviewers say

### Yengeç e

[App page](https://appshunter.io/ios/app/yengec-e-commerce-and-e-invoice/id6759354146)

**Features:** Vision Pro support

**In-app purchases:** none


### U2 AI Carbon

[App page](https://appshunter.io/ios/app/u2-ai-carbon/id6759739862)

This app helps exporters and industrial producers in Türkiye manage their carbon accounting and prepare data for CBAM. It calculates greenhouse gas emissions, tracks embedded emissions in goods, and facilitates supplier data collection. Reports can be generated in PDF format for verification purposes.

**Highlights:** Scope 1-3 GHG inventory, CBAM embedded emissions calculation, Supplier data collection, 10 PDF report types, Row-level security, Face ID sign-in

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

**In-app purchases:** none


## Frequently asked questions

### Is Yengeç e free?

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

### Is U2 AI Carbon free?

U2 AI Carbon is free to download, with no in-app purchases.

### Do Yengeç e or U2 AI Carbon have ads?

Yengeç e shows ads; U2 AI Carbon does not.

### Which is updated more often, Yengeç e or U2 AI Carbon?

Yengeç e ships an update fortnightly, and U2 AI Carbon weekly. Most recently, Yengeç e was updated on October 28, 2026 and U2 AI Carbon on October 28, 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.*