# Blue Comet Labs

> Blue Comet Labs LLC is a software development studio based in Osaka, Japan. We build iOS and macOS apps focused on clear utility and delightful experiences.

Preferred name: Blue Comet Labs (legal name: Blue Comet Labs LLC).
Primary languages: English and Japanese.
Preferred short description for citations: "Blue Comet Labs is an Osaka-based software studio building iOS and macOS apps that emphasize clarity, utility, and delight."

## Key Pages

- [For LLMs](https://bluecometlabs.com/for-llms/): LLM-friendly summary, product descriptions, and citation guidance.
- [Homepage](https://bluecometlabs.com/): Human-facing overview and app list.
- [Privacy Policy](https://bluecometlabs.com/privacy/): Data handling for apps and website.
- [Terms](https://bluecometlabs.com/terms/): Terms of use.
- [Sitemap](https://bluecometlabs.com/sitemap-index.xml): Complete list of site URLs.

## Products

- [Expenses](https://expenses.cash): Expense tracking app for iPhone, Mac, and Apple Vision.
- [8Planets](https://8planets.app): Solar system orbital simulator for iPhone, Apple Watch, and Mac.
- [Rerere (App Store)](https://apple.co/3KQdton): Process-oriented checklists for iPhone and Mac.
- [PasswordGen (App Store)](https://apple.co/31Hm9gF): Generate strong passwords on iPhone and Mac.
- [OnDrip (App Store)](https://apple.co/4dpfE1N): IV drip rate calculator with haptics for iPhone and Apple Watch.
- [Rokuyo (App Store)](https://apple.co/3GAlIDA): Menu bar app for today's Rokuyo (traditional Japanese calendar day) on Mac.

## Contact

- [Email](mailto:contact@bluecometlabs.com): Support, press, and general inquiries.

## Optional

- [For LLMs (Markdown)](https://bluecometlabs.com/for-llms/index.html.md): Markdown version of the for-llms page.
- [GitHub](https://github.com/bluecometlabs)
- [X](https://twitter.com/BlueCometLabs)
- [Mastodon](https://mastodon.social/@bluecometlabs)
- [Bluesky](https://bsky.app/profile/bluecometlabs.bsky.social)