# JouleBug vs No CO2

JouleBug and No CO2 are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | JouleBug | No CO2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (41 ratings)](https://appshunter.io/ios/app/joulebug-legacy/id391199306/reviews)** | — |
| Number of ratings | **41** | — |
| Positive reviews | 70.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free | — |
| Size | 70 MB | 27 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Cleanbit Systems, Inc.](https://appshunter.io/developer/391199309) | [Daniel Davidson](https://appshunter.io/developer/1790097360) |

## What reviewers say

### JouleBug

[App page](https://appshunter.io/ios/app/joulebug-legacy/id391199306)

This app is designed to enhance workplace experiences by fostering environmental and social stewardship through collective action. It offers tailored sustainability programs, tracks impact metrics, and encourages employee engagement through challenges and social interactions.

**Highlights:** Employee Engagement Hub, Tailored Sustainability Programs, Metrics for Impactful Insights, Inspirational Challenges, Dynamic Social Interactions

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 💡 Great concept and idea
- 👍 Fun and engaging
- 🌍 Motivates environmental action
- 💡 Educational and informative
- 🤝 Social and competitive aspect

**What reviewers complain about**

- 🐛 App crashes frequently
- 🐛 App is buggy
- 🐛 Server errors
- 🐛 Incomplete features/buttons
- 🐛 Outdated content (challenges, actions)

**Reported bugs**

- App closes when buzzing
- Server error prevents usage
- App won't load after initial setup
- Login errors, requires Facebook
- Accidental buzzes cannot be deleted

**Requested features**

- Add more sustainable actions/challenges
- Update book and movie options
- Add a clothing section with sustainable options
- Allow deletion of unintentional buzzes
- Favorite/categorize activities


### No CO2

[App page](https://appshunter.io/ios/app/no-co2/id6747688511)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is JouleBug free?

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

### Is No CO2 free?

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

### Do JouleBug or No CO2 have ads?

Neither JouleBug nor No CO2 shows ads.

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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.*