At Day One, our mission is to help you capture life’s moments through a journaling experience that feels personal, intuitive, and secure. That’s why we’re excited to introduce Apple Intelligence in Day One, bringing powerful new journaling tools with your privacy in mind.
Powered by Apple’s Foundation Models framework, all AI processing happens privately on your device. Your entries never leave your device, no data is collected or shared with third parties, and everything works completely offline.
Apple Intelligence features are available in Day One for iPhone and iPad (version 2025.19) on compatible devices running iOS 26.
New Journaling Tools Powered by Apple Intelligence
Apple Intelligence brings three new tools to the Day One editor, each designed to make journaling more insightful and easy to revisit. These features are using the Foundation Models framework which taps into the on-device model at the core of Apple Intelligence:
- Go Deeper Prompts – Generate dynamic prompts in the entry editor based on what you’ve written, helping you reflect further and uncover new insights.
- Entry Title Suggestions – Receive smart, contextual title ideas generated from your writing, so it’s easier to capture your entry with clarity.
- Entry Highlights – See a concise bulleted list of the most important points from your entry, making it simple to revisit key themes later.
Privacy You Can Trust
We know journaling is one of the most personal things you can do. With Apple Intelligence in Day One, you can enjoy AI-powered features knowing they were designed with your privacy in mind.
- All AI processing happens on your device
- Your entry content never leaves your device
- Works completely offline
These features are completely optional. You can turn them on or off anytime under Settings > Apple Intelligence.
How to Get Started
- Check your device version. Apple Intelligence is compatible with the iPhone 15 Pro, iPhone 15 Pro Max, and the entire iPhone 16 lineup (including the 16, 16 Plus, 16 Pro, and 16 Pro Max). See additional info and system requirements.
- Update your device. Be sure to install iOS 26 and update to Day One version 2025.19.
- After updating, open Day One, then start a new entry or edit an existing entry. Type something to reveal the new toolbar. Tap the Apple Intelligence icon in the bottom toolbar of the entry editor.
- Choose a feature. Select from Go Deeper Prompts, Entry Title Suggestions, or Entry Highlights.
- Opt in. The first time you use Apple Intelligence in Day One, you’ll see an opt-in notice. Tap Proceed to enable Apple Intelligence.
- Explore the features. First, try Go Deeper Prompts to generate dynamic prompts in the entry editor based on what you’ve written. Tap a prompt to insert it into your entry to keep writing.
- Once you’ve finished writing your entry, try Entry Title Suggestions to generate quick titles for your entry. Tap one of the title options to insert it as the title of your entry.
- Finally, check out Entry Highlights. You’ll see a concise bulleted list of the most important points from your entry, making it simple to revisit key themes later.
At any time, you can manage your settings under Settings > Apple Intelligence in Day One.
A note for Labs users: If you previously enabled Entry Summary in Labs, you’ll now find it updated as Entry Highlights. To continue using it, go to Labs and manually enable the new toggle. Starting in version 2025.19, Entry Summary has been temporarily replaced with Entry Highlights, with a new system prompt and bullet-point formatting.
Notes on Using These Features
Apple Intelligence is still evolving, and you may notice variation in the quality or style of the prompts and highlights you receive. We’ll continue refining these features to ensure they feel natural, consistent, and deeply helpful in your journaling practice. Your feedback is invaluable and helps us improve the feature in future updates.
The Next Chapter in Journaling is Here
With Apple Intelligence in Day One, you can enjoy new journaling tools that honor your privacy while helping you reflect in deeper ways. These features mark the beginning of a more meaningful, personal, and secure journaling experience.
FAQs
Why would I want to use AI in my journaling?
We understand that using AI in journaling might feel like a big step, especially for something as personal as your journal. It’s natural to have questions or concerns about privacy and security.
At Day One, we see AI as a creative companion, not a replacement for your voice. Features like Go Deeper prompts, entry highlights, and title suggestions can make journaling more accessible, intuitive, and rewarding. Many users find that AI helps them reflect more deeply, uncover new insights, and revisit their writing in fresh ways.
Most importantly, your privacy remains paramount. All processing happens on your device, with nothing leaving your journal. Your entries stay yours and yours alone.
Do I have to use these features to continue using Day One?
No. Apple Intelligence features in Day One are completely optional and turned off by default. You can turn on or off anytime from Settings > Apple Intelligence.
Can I turn these features off later?
Yes. You can turn them on or off anytime from Settings > Apple Intelligence.
Do I need to write a certain amount for these AI features to work?
These Apple Intelligence features work best if you’ve written a few sentences or more into an entry, as it uses the context of what you’ve written in an individual entry to tailor its suggestions. If you’re not sure where to begin, don’t worry. We provide a few starting prompts to help you get going.
What does it mean that these features run on my device?
These features use Apple’s Foundation Model, which runs directly on compatible devices with Apple Intelligence enabled. That means your journal entries are processed on your iPhone or iPad, never leave your device, and are not shared or stored elsewhere. This also allows the features to work even when you’re offline.
Which devices support Apple Intelligence in Day One?
Apple Intelligence requires a compatible device (iPhone 15 Pro, iPhone 15 Pro Max, and all iPhone 16 & 17 models are supported), running iOS 26. Here’s a list of compatible devices and system requirements from Apple.
How can I check if my device supports these features?
Once you’ve updated to version 2025.19 of Day One for iPhone and iPad, you can check compatibility by going to Settings > Apple Intelligence in Day One. If your device supports these features, you’ll see the option to turn them on.
Where does my journal content go when I use Apple Intelligence?
Because Day One uses the Apple Foundation Model to power these AI features, all processing happens directly on your device. Your journal entries never leave your device and everything works offline.
Will Day One collect or store my journal’s contents when I use Apple Intelligence?
No. Day One does not collect, transmit, or store any of your journal’s contents when you use these features. It means everything happens locally on your iPhone or iPad, so your entries never leave your device, none of your content is stored or shared, and the features work even when you’re offline.
Why don’t I see the Apple Intelligence icon in my entry editor toolbar?
Make sure you’re running iOS 26 (or later) and Day One version 2025.19. Also confirm you’re on a compatible device. You’ll need to start writing in an entry before the toolbar appears.
What happened to Entry Summary in Labs?
The Entry Summary feature previously available in Labs has been replaced with Entry Highlights in version 2025.19. If you had previously enabled Entry Summary in Labs, you’ll need to re-enable the new Entry Highlights feature.
Can I use these features offline?
Yes. Go Deeper prompts, Entry Title Suggestions, and Entry Highlights all work even when you don’t have an internet connection.
Will more AI features be added in the future?
Yes, we’re just getting started. We’re exploring additional tools that bring more intelligence and privacy together in journaling. We also have additional AI features available in Day One Labs that aren’t powered by Apple Intelligence.
Where can I share my feedback on these features?
We’d love to hear your thoughts and suggestions on these features. Share your input here.
