# JouleBug vs swrm

JouleBug and swrm both sit at 4.4 stars, but that hides the real split: 70% of JouleBug's written reviews are positive against 50% of swrm's. JouleBug also leads on update cadence (every 3 months vs every 9 months) and ratings volume (41 vs 6). swrm's advantage is iOS requirement (10.0 vs 13.0). On price, rating, 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.

On the App Store both sit at effectively the same score — 4.4 for JouleBug against 4.3 for swrm. That said, the two scores are not equally well evidenced: JouleBug has 41 ratings behind it against 6, so its average is the more settled of the two. Written reviews are what separate them: 70% of JouleBug's written reviews are positive against 50% of swrm's.

JouleBug ships an update every 3 months, swrm every 9 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | JouleBug | swrm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (41 ratings)](https://appshunter.io/ios/app/joulebug-legacy/id391199306/reviews)** | [4.3 (6 ratings)](https://appshunter.io/ios/app/swrm/id1437980734/reviews) |
| Number of ratings | **41** | 6 |
| Positive reviews | **70.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 9 months |
| Monetization | Free | Free |
| Size | 70 MB | 124 MB |
| Requires iOS | 13.0 | **10.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Cleanbit Systems, Inc.](https://appshunter.io/developer/391199309) | [Greenswrm, Inc.](https://appshunter.io/developer/1483955354) |

## 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


### swrm

[App page](https://appshunter.io/ios/app/swrm/id1437980734)

Track your carbon footprint and adopt a more sustainable lifestyle. This app offers a comprehensive calculator, educational resources, and community challenges to help you reduce your environmental impact. Monitor groceries, transportation, and household energy use.

**Highlights:** Carbon footprint calculator, Grocery barcode scanning, Vehicle and transportation tracking, Household appliance impact, Community challenges, Educational articles and videos

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is JouleBug free?

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

### Is swrm free?

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

### Which has better reviews, JouleBug or swrm?

JouleBug is rated higher. JouleBug averages 4.4 out of 5 from 41 ratings, while swrm averages 4.3 from 6 ratings.

### Do JouleBug or swrm have ads?

Neither JouleBug nor swrm shows ads.

### Which is updated more often, JouleBug or swrm?

JouleBug ships an update every 3 months, and swrm every 9 months. Most recently, JouleBug was updated on November 1, 2026 and swrm on November 2, 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.*