# Mewna - AI Sleep Companion — A cat curled by your pillow

> A cat curled by your pillow (iPhone/iPad app by Kaijun Huang.)

- Source: https://appshunter.io/ios/app/mewna-ai-sleep-companion/id6767802408 (this page in markdown: same URL + `.md`)
- Developer: [Kaijun Huang](https://appshunter.io/developer/1876709071)
- Category: Health & Fitness, Lifestyle
- Price: $1.99
- Age rating: 4+
- Requires: iOS 17.0 · 6 MB
- Languages: American English, Arabic, Dutch, French (France), German (Germany), Hindi, Indonesian, Italian, Japanese, Korean and 8 more
- Released: 2026-05-11
- Data updated: 2026-08-17
- User reviews in markdown: https://appshunter.io/ios/app/mewna-ai-sleep-companion/id6767802408/reviews.md

## What is Mewna?

Sleep better, starting with understanding tonight.

Mewna is a tiny moon-cat who watches over you while you sleep. Place your iPhone by your pillow, or wear your Apple Watch — we'll quietly read your night and tell you what happened, in human words.

Not another cold sleep tracker. A companion who understands the science and speaks gently.

WHY MEWNA

• Academic algorithm, plain-language results
Cole-Kripke (1992) actigraphy — ~89% PSG agreement in adults. NIH / Sleep Foundation sleep-quality framework. The complex science, translated into what you actually need to know tonight.

• Multi-source fusion
Apple Watch heart rate, HRV, and sleep stages, plus iPhone micro-motion detection — combined, more accurate than either alone.

• Story-ready in the morning
Sleep score · total sleep · how long to fall asleep · times you woke up · deep recovery · REM · resting HR · HRV — and a personal narrative for the night, not just numbers.

• Calendar heatmap, trends visible
See at a glance which nights flowed and which were rough. 7 / 30 / 90-day trends help you find your rhythm again, slowly.

• Pre-sleep tags
A drink? A workout? Stressful day? A two-second tag lets the AI connect cause and effect for you.

• Auto iCloud backup, no sign-up
Your data is yours. All analysis happens on-device. Switch phones — your records follow.

PRIVACY FIRST

• No servers, no accounts, no ads, no trackers
• Motion + health data analyzed entirely on your iPhone
• iCloud sync uses Apple's private CloudKit container — even we cannot see it
• Erase everything anytime in Settings

18 LANGUAGES

繁體中文 · 简体中文 · English · 日本語 · 한국어 · Español · Français · Deutsch · Italiano · Português · Русский · Nederlands · Türkçe · العربية · हिन्दी · ภาษาไทย · Tiếng Việt · Bahasa Indonesia. Switch anytime in-app.

MADE FOR

• Anyone with restless or fluctuating sleep
• People who want to understand their body
• Apple Watch users who don't want yet another wearable
• Those who prefer warmth over cold dashboards

REFERENCES

Cole RJ et al., Sleep 1992;15:461-9 · Sadeh A et al., Sleep 1994;17:201-7 · Watson NF et al., Sleep 2015;38:843-4 · de Zambotti M et al., Sleep Med Clin 2020 · Hirshkowitz M et al., Sleep Health 2015.

Mewna is not a medical device. Persistent sleep problems? Talk to your doctor.

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Privacy Policy: https://gckenny.github.io/mewna/privacy.html
Terms of Use: https://gckenny.github.io/mewna/terms.html


## Version history (last 1 release)

### 1.0.0 — 2026-05-12

No release notes.

## More apps by Kaijun Huang

- [Swim Insights Taiwan](https://appshunter.io/ios/app/swim-insights-taiwan/id6759076421)
- [Swim Arcade](https://appshunter.io/ios/app/swim-arcade/id6761876525)
- [龍安泳隊](https://appshunter.io/ios/app/id6766417975)
- [游泳賽事通](https://appshunter.io/ios/app/id6771422476)

All apps by Kaijun Huang: https://appshunter.io/developer/1876709071

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-17.*