Make an app
Make a mood tracker app for iPhone
A mood tracker is a quick daily question and a long memory. Describe yours to Borel and it builds a native iPhone app in Swift: pick a face for today, tag what shaped it, add a line if you like, then look back over a month on a chart. It stays on your phone, locked behind Face ID if you ask.
Updated
“A mood tracker: once a day I pick one of five faces, add tags like sleep, work, friends or exercise, and an optional note. A month view colours each day by mood, and a chart shows which tags go with my better days. Lock it with Face ID.”
Screens
What a mood tracker app needs
The screens Borel builds from the prompt above. Ask for more, fewer or different ones.
Check in
Five faces in a row, a set of tags to tap, and a short note field.
Month
A calendar with every day coloured by the mood you picked.
Patterns
Average mood per tag, so you can see what tends to lift a day.
Entry
One day's face, tags and note, editable if you change your mind.
Data
What it keeps
Borel writes these as Swift models. On the phone they work with no connection; in Borel's cloud they follow a signed-in person.
| What | Holds | Kept |
|---|---|---|
| Entry | Date, mood from 1 to 5, note | On the phone, with SwiftData |
| Tag | Name and colour, like sleep or friends | On the phone, with SwiftData |
| Entry tags | Which tags belong to which day | On the phone, with SwiftData |
Native iPhone features
What it can use on your iPhone
Written in Swift with Apple's own frameworks, so they work the way iPhone owners expect.
Make it yours
What to ask for next
Once the first version runs, ask for changes in the chat, in words like these.
- “Let me check in twice a day, morning and evening, and show both on the calendar.”
- “Add a gentle reminder at 8 pm if I haven't checked in.”
- “Let the AI write me a short summary of my month, in a kind voice.”
- “Export my entries as a text file I can share with my therapist.”
How to make it
From a prompt to your iPhone and the App Store
- 1
Describe it
Paste the prompt on this page into Borel, or write your own in plain words. Borel plans the screens with you before it builds.
- 2
Try it in your browser
Borel writes the app in Swift and SwiftUI, builds it with Xcode on its own Mac and opens it in a live iPhone simulator in your browser, free.
- 3
Put it on your iPhone
With Pro, Borel Companion for Windows or Mac installs it on your own iPhone with your Apple ID: a cable the first time, then Wi-Fi.
- 4
Publish it when it's ready
Pro publishes to the App Store from the same project. Apple's Developer Program, $99 a year, is the one thing you pay Apple.
A mood app lives or dies on how fast the check-in is. On your iPhone, time yourself: if it takes more than a few taps, ask Borel to put the faces on the first screen and save on the first tap. Check that Face ID asks once per opening and not every time you switch tabs.
Most mood trackers are kept private. If you publish yours, Borel adds the Terms, Privacy Policy and account deletion rows Apple asks for, and its data stays on each person's phone unless you add accounts.
Building starts free, with 5 free credits a day, up to 30 a month, and the simulator in your browser costs nothing. Pro, from $20 a month, adds installs on your own iPhone through Borel Companion and publishing to the App Store.
Before you start
Good to know
- It isn't a medical tool and doesn't diagnose anything; say so in the app if you publish it.
- It doesn't write mood to the Health app's State of Mind; the entries stay in the app.
- There is no lock screen widget for one-tap check-ins.
Frequently asked questions
Yes. By default it's saved only on your iPhone with SwiftData, and Face ID can lock the app. Nothing goes to a server unless you ask for accounts.
Yes. With tags on each day, Borel can draw the average mood per tag, so you see which ones go with better days.
Yes. Borel can add a monthly summary or a reflection prompt that runs on Borel's AI, with no API key to set up. It asks for consent before first use.
Yes. Ask for any scale you like, from three colours to ten numbers, and Borel rewrites the check-in and the charts to match.
Make your mood tracker app
Start from the prompt on this page, change it to fit your idea, and Borel builds it while you watch.