Make a couples app for Valentine's Day

You can make a couples app for Valentine's Day in an evening, without coding: describe it to an AI app builder, add your photos and words, and send your partner the link. Valentine's Day 2027 is Sunday, February 14, so there is time to build it the weekend before. Here are four features couples actually use, with prompts you can copy.

Key facts

• Valentine's Day 2027 falls on Sunday, February 14.
• The simplest couples app needs no database: a countdown, a page of notes and a date idea picker can all live in the app.
• To share memories and notes between two phones, you need a database and login. On Snapp that is your own Supabase project, which has a free plan (as of October 2026).
• On Snapp, a new app takes about 7.5 credits and a change about 3, and you can build and test on the Free plan.

Couple app ideas worth building

Feature	What it does	Needs a database?
Shared memories	A timeline of photos and notes from your dates and trips	Yes, to share between two phones
Countdown	Days until Valentine's Day, your anniversary or the next trip	No
Love notes	Write a note, your partner gets a notification	Yes
Date ideas	A list of ideas and a button that picks one at random	No (yes if you both add ideas)

Start with one, then add the next in another message.

The simple version: an app as a gift

If you want a surprise, build the app for your partner and give them the link on the day. No accounts, no database.

"A Valentine's app for my partner Sam: a countdown to February 14, a page of 14 reasons I love you that appear one by one, and a button that picks a date idea from my list."

Then make it yours, one change at a time:

• "Add our photo from the beach trip at the top of the home screen."
• "Use soft pink and deep red, with a heart on every reason card."
• "Add a hidden message that shows when you tap the heart five times."

You can change colors and words by hand with Visual Edit, which uses no credits.

The shared version: an app for the two of you

For an app you both use every day, connect a database and add login first:

1. Tap Add Database in the chat and connect your Supabase project. Do this before you ask for shared features, or the app is built with sample content and needs rebuilding.

2. Tap Add User Login so each of you has an account.

3. Describe the shared app: "A couples app for two people: we connect our accounts with a code, share a timeline of memories with photos, and send each other short love notes."

4. Test it with two accounts in the preview before you share it. Check that your partner can join with the code and that a memory added on one account shows on the other.

Photos are stored in your own Supabase project. Ask for "only the two of us can see our memories and notes" so nobody else who signs up can read them. Our guide on adding login has the details.

How do love notes send a notification?

Ask Snapp: "Notify my partner when I send them a love note." Your app can notify one user when something happens, like a new message. People are asked for permission only when they turn notifications on.

Notifications reach your partner once you both use a published version of the app. For Android, connect your Google account once in the Push notifications card on the Publish screen; iPhone uses the Apple account you publish with. In the preview, notifications show on your own phone instead of being sent. If your partner uses the app from a link instead of a store version, the notes still arrive in the app; they just do not come with a notification.

A daily reminder, like "remind me at 8 pm to write one nice thing", is scheduled on the phone and works in every published app without extra setup.

How do I give the app to my partner?

• A link: tap Share Now in the chat for a link and a QR code. Your partner opens it in any browser and can add it to the home screen, so it opens full screen with its own icon. On the Free plan the link works for 24 hours from your last share, so share it on the day; on any paid plan it is permanent. See share your app with others.
• The app stores: from the Starter plan, Snapp publishes into your own Google Play and Apple developer accounts. Store fees apply, and a new personal Google Play account must run a closed test with 12 testers for 14 days first, so a link is the practical choice for February 14.

Where Snapp fits

Snapp builds real iPhone and Android apps from a description, and runs them on your phone while you build. Small personal apps like this are a good first project. Describe yours at snappai.co and send the link before February 14. If you are new to prompts, read how to write a good prompt.

Frequently asked questions

Does my partner need an account or the Snapp app?

Not for the gift version: the link opens in any browser. For the shared version, your partner creates an account in your app, not in Snapp.

Is it private?

Your app is private until you share it, and anyone with the link can open it. For the shared version, ask that only the two of you can see your memories and notes, and test it with a third account.

Can I keep using it after Valentine's Day?

Yes. Change the countdown to your anniversary and keep adding memories. A permanent link needs a paid plan.

Sources

• Supabase pricing
• Google Play: testing requirements for new personal accounts

Last updated: October 2026.