# zero zero vs Earth Mission App

The clearest difference is review sentiment: Earth Mission App at 100% against zero zero's 42%. On price, update cadence, ads and in-app purchases there is nothing between them.

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

zero zero ships an update every 5 weeks, Earth Mission App every 2 months. The most recent releases landed on October 6, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | zero zero | Earth Mission App |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 42.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 43 MB | 42 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [DA FON](https://appshunter.io/developer/1181495039) | [Acer Incorporated](https://appshunter.io/developer/567404763) |

## What reviewers say

### zero zero

[App page](https://appshunter.io/ios/app/zero-zero/id1181495040)

This app simplifies recycling and waste management. It offers a platform to find nearby recycling locations, schedule pick-ups for old appliances and vehicles, and securely destroy confidential documents. Earn rewards for recycling and manage your environmental impact with ease.

**Highlights:** Recycling location map, Appliance pick-up scheduling, Vehicle disposal services, Confidential document destruction, Earn rewards (z幣)

**In-app purchases:** none


### Earth Mission App

[App page](https://appshunter.io/ios/app/earth-mission-app/id1633165996)

This app encourages users to adopt sustainable habits through daily green actions and challenges. It helps build eco-friendly behaviors over 21 days and includes a carbon calculator to visualize environmental impact.

**Highlights:** Daily green actions, 21-day habit building challenges, Carbon footprint calculator, Eco-friendly behavior shaping, Reduce, reuse, recycle focus

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

**In-app purchases:** none


## Frequently asked questions

### Is zero zero free?

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

### Is Earth Mission App free?

Earth Mission App is free to download, with no in-app purchases.

### Do zero zero or Earth Mission App have ads?

Neither zero zero nor Earth Mission App shows ads.

### Which is updated more often, zero zero or Earth Mission App?

zero zero ships an update every 5 weeks, and Earth Mission App every 2 months. Most recently, zero zero was updated on October 6, 2026 and Earth Mission App on October 5, 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.*