# Cetmar 20 vs EcoGPT

The clearest difference is in-app purchases: Cetmar 20 at none against EcoGPT's 18. Cetmar 20 also leads on ads (none vs shown) and iOS requirement (13.0 vs 18.0). EcoGPT's advantage is update cadence (weekly vs every 3 weeks) and chart position (#89 vs unranked). On price and device support there is nothing between them.

Both are free to download. EcoGPT sells 18 in-app purchases, starting at $5.99 per month. Cetmar 20 asks for nothing beyond the download.

Cetmar 20 ships an update every 3 weeks, EcoGPT weekly. The most recent releases landed on October 7, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Cetmar 20 | EcoGPT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (8.9K ratings)](https://appshunter.io/ios/app/ecogpt/id6756059656/reviews)** |
| Number of ratings | — | **8.9K** |
| Positive reviews | — | 77.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Best chart rank | — | **#89** |
| Size | 9 MB | 202 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 12+ |
| Developer | [Luis Felipe Camacho Toscano](https://appshunter.io/developer/1581136761) | [EcoGPT Inc](https://appshunter.io/developer/6785926865) |

## What reviewers say

### Cetmar 20

[App page](https://appshunter.io/ios/app/cetmar-20/id6452119966)

**Features:** macOS Compatibility

**In-app purchases:** none


### EcoGPT

[App page](https://appshunter.io/ios/app/ecogpt/id6756059656)

**Currently charting:** #89 Top Free · Productivity, #110 Top Grossing · Productivity (US App Store)

This AI chatbot offers powerful writing, thinking, and creative assistance with a focus on reducing environmental impact. It provides efficient processing and transparent eco-tracking, allowing users to contribute to tree planting with their usage.

**Highlights:** AI chatbot for writing and ideation, Environmentally responsible AI processing, Eco-impact dashboard, Tree planting contributions, Unlimited chats (Premium), Image generation (Premium), Web search (Premium)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EcoGPT Monthly Subscription | $5.99 | per month |
| EcoGPT Monthly Subscription. | $7.00 | per month |
| EcoGPT Monthly Subscription | $9.99 | per month |
| Monthly Subscription | $9.99 | per month |
| EcoGPT Yearly Subscription. | $9.99 | per year |
| EcoGPT Monthly Subscription. | $10.00 | per month |
| EcoGPT Monthly Subscription. | $10.00 | per month |
| EcoGPT Monthly Subscription. | $14.99 | per month |
| EcoGPT Monthly Subscription | $19.99 | per month |
| EcoGPT Monthly Subscription. | $19.99 | per month |
| EcoGPT Monthly Subscription. | $20.00 | per month |
| EcoGPT Monthly Subscription. | $24.99 | per month |
| EcoGPT Yearly Subscription. | $29.00 | per year |
| EcoGPT Yearly Subscription | $49.99 | per year |
| EcoGPT Yearly Subscription | $49.99 | per year |
| EcoGPT Yearly Subscription. | $59.99 | per year |
| EcoGPT Yearly Subscription | $69.99 | per year |
| EcoGPT Yearly Subscription | $99.99 | per year |


## Frequently asked questions

### Is Cetmar 20 free?

Cetmar 20 is free to download, with no in-app purchases.

### Is EcoGPT free?

EcoGPT is free to download, with in-app purchases available.

### Do Cetmar 20 or EcoGPT have ads?

EcoGPT shows ads; Cetmar 20 does not.

### Which is updated more often, Cetmar 20 or EcoGPT?

Cetmar 20 ships an update every 3 weeks, and EcoGPT weekly. Most recently, Cetmar 20 was updated on October 7, 2026 and EcoGPT on October 26, 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.*