Ember: Private AI Journal
Daily voice diary, on-device
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
The journal that thinks with you, and never leaves your iPhone. On-device AI turns what you write into clarity. No account. No cloud reading your words.
Ember is a private journal with on-device AI. Write or speak your thoughts — Ember transcribes and distills them right on your iPhone. Your words never touch a server. No account, no email, and nothing to read but you.
WHY EMBER
• Truly private. Your entries, voice, and AI all run on-device. They sync only through your private iCloud — which we can't read.
• AI that can't leak. On-device Apple Intelligence turns any entry into a one-sentence summary, what's weighing on you, and your next steps. No cloud, no training on your life.
• Speak or write. Capture by hand or hold to dictate — voice becomes text on-device.
• Calm by design. A warm, minimal, distraction-free space made for daily reflection.
PRIVATE BY ARCHITECTURE, NOT BY PROMISE
Most "private" journals decrypt your words on a server the moment you use AI. Ember doesn't have that problem — the intelligence lives on your device. No accounts. No analytics on your content. No way for anyone, including us, to read your journal.
FEATURES
• On-device transcription and AI distillation
• A clean daily timeline of every entry
• Hold-to-talk voice capture
• Private iCloud sync across your devices
• Personalize with ink accent colors
• No login — open it and write
FOR
Anyone who wants the clarity of AI journaling without handing their inner life to the cloud: writers, thinkers, and anyone keeping a daily diary, gratitude log, or private notes.
Ember Pro unlocks on-device distillation, iCloud sync, and every future Pro feature.
Subscriptions auto-renew unless cancelled at least 24h before the period ends; manage in Settings › Apple ID › Subscriptions.
Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy: cyostech.com/en/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Ember is here, a private journal with on-device AI.
• Write or speak; transcription and distillation run entirely on your iPhone
• Private iCloud sync, we can't read it
• A calm, minimal home for daily reflection
Your words never leave your device.
Tell us what to build next: hey@cyostech.com
The developer, Cyos Technologies LTDA, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Cyos Technologies LTDA
- Size
- 10.5 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 26 or later.
- iPhone
Requires iOS 26 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Annual Subscription $29.99
- Monthly Subscription $4.99
- Copyright
- © Sonet