# Exist vs Earth Hero

The clearest difference is rating: Earth Hero at 4.9 against Exist's 4.0. Earth Hero also leads on in-app purchases (none vs 1) and review sentiment (95% vs 68%). Exist's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Exist sells 1 in-app purchase, starting at $8.49 per month. Earth Hero asks for nothing beyond the download.

Earth Hero holds the better App Store score, 4.9 against 4.0. That said, the two scores are not equally well evidenced: Earth Hero has 898 ratings behind it against 47, so its average is the more settled of the two. Written reviews point the same way: 68% of Exist's written reviews are positive against 95% of Earth Hero's.

Exist ships an update every 3 weeks, Earth Hero every 2 months. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Exist | Earth Hero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (47 ratings)](https://appshunter.io/ios/app/exist/id986201088/reviews) | **[4.9 (898 ratings)](https://appshunter.io/ios/app/earth-hero-climate-change/id1458057746/reviews)** |
| Number of ratings | 47 | **898** |
| Positive reviews | 68.4% of reviews | **95.2% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Subscription | **Free** |
| Size | 14 MB | 890 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Hello Code Pty Ltd](https://appshunter.io/developer/933609066) | [Earth Hero](https://appshunter.io/developer/1458057355) |

## What reviewers say

### Exist

[App page](https://appshunter.io/ios/app/exist/id986201088)

This app helps you understand and optimize your behavior by combining manual tracking with automatic syncing from various services. Track health, productivity, and more, uncover relationships between habits, and run experiments on your behavior. Gain daily insights and weekly summaries to improve your life.

**Highlights:** Track any data point manually, Automatic syncing from health and productivity services, Daily insights and weekly summaries, Discover correlations between habits, Run behavioral experiments, Integrates with Apple Health and other services

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Exist monthly subscription | $8.49 | per month |


### Earth Hero

[App page](https://appshunter.io/ios/app/earth-hero-climate-change/id1458057746)

Take practical steps to address climate change and discover sustainable living. This app connects you with a global community, offers personalized actions, and tracks your carbon footprint to help you reduce emissions and set green goals.

**Highlights:** Personalized climate actions, Carbon footprint tracker, Community mobilization, Green goal setting, Science-based recommendations, Action sharing

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Intuitive and easy to use
- 🚀 Helpful for tracking carbon footprint
- 💡 Provides many actionable ideas to reduce emissions
- 🌟 Motivating and inspiring
- 👏 Comprehensive and informative

**What reviewers complain about**

- 🐛 Some technical issues like crashes or bugs
- 🔍 Needs more customization options
- 📊 Could use more detailed emissions tracking
- 🏠 Lacks features for renters or apartment dwellers

**Reported bugs**

- Login issues with certain authentication methods
- Occasional crashes or freezes when using the app

**Requested features**

- Add more actions and ideas for reducing emissions
- Improve emissions tracking with shorter time frames
- Integrate with smart home devices for automated tracking
- Create a community feature to share progress with friends


## Frequently asked questions

### Is Exist free?

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

### Is Earth Hero free?

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

### Which has better reviews, Exist or Earth Hero?

Earth Hero is rated higher. Exist averages 4.0 out of 5 from 47 ratings, while Earth Hero averages 4.9 from 898 ratings.

### Do Exist or Earth Hero have ads?

Neither Exist nor Earth Hero shows ads.

### Which is updated more often, Exist or Earth Hero?

Exist ships an update every 3 weeks, and Earth Hero every 2 months. Most recently, Exist was updated on October 24, 2026 and Earth Hero on October 22, 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.*