Voice-first memory keeping for parents

Record the story behind the moment.

Flat Circle helps you save voice memories with photos or videos attached, encrypt them on your device, and deliver them to your kid when they are grown up.

  • Under 30 seconds to capture a memory
  • Client-side encryption by default
  • Open source app, paid hosted service

What this is

A calmer way to keep what matters.

Parents already save photos and videos. What disappears is the context: why the moment mattered, what happened right before it, what you were feeling when it happened.

Flat Circle captures the story in your own voice. Media is optional. The meaning comes first.

How it works

Simple enough to use right away.

01

Record your voice

Tap, narrate, and save. Add a photo or video if it helps tell the story, but voice stays at the center.

02

Encrypt on device

Content is encrypted before upload. The server stores auth data, delivery timing, and encrypted blobs only.

03

Choose when it unlocks

Keep it available now or set a future delivery date. The app is built around memory, care, and time.

04

Keep your own archive

Memories are also exported as encrypted bundles to your own cloud storage so your archive is not dependent on us.

Privacy

Private in a way you can understand.

What Flat Circle stores

  • Your account email
  • Encrypted memory files
  • The delivery dates you choose
  • Storage and export references

What Flat Circle cannot read

  • The words in your recordings
  • Your photos or videos in readable form
  • Your encryption keys
  • Your memories after they are unlocked on your device

The goal is simple: the service should have less access to your memories in the first place, not just nicer promises about privacy.

Read more about our privacy approach

Built for longevity

Your data should outlast the app.

Flat Circle is a convenience layer, not a forever promise. Every memory can be exported as an encrypted bundle with a standalone decryptor.

If the hosted service ever disappears, your archive still contains what you need to recover and decrypt your memories.

memory_2026-03-12_001.flatcircle/ โ”œโ”€โ”€ manifest.json โ”œโ”€โ”€ voice.enc โ”œโ”€โ”€ media.enc โ”œโ”€โ”€ decrypt.html โ””โ”€โ”€ README.txt

Pricing

One plan. No games.

Open source path

Free self-hosted
  • AGPLv3 codebase
  • Bring your own storage
  • Auditable encryption flow
  • Shared export format
  • Built for portability

Open source

Transparent where it matters.

The app, API, encryption flow, export format, and standalone decryptor are open source. That makes the privacy model legible, auditable, and forkable.

The hosted product charges for managed storage, delivery scheduling, and export orchestration, not for locking your memories into a black box.

FAQ

Plain answers.

Is this a photo app?

No. It is a voice-first memory app. Photo and video are there to support the story, not replace it.

What if Flat Circle disappears?

Your encrypted exports are the durable archive. The hosted app is useful, but it is not the only place your memories live.

Do you read my memories?

No. The service does not have your plaintext content or your encryption keys.

Will there be Android support?

Yes, after the iPhone flow is solid. The shared API and export format are designed so future clients can follow the same contract.