Launching soon

Speak it. Find it.
Ask it.

Tephra turns your voice into a private, searchable knowledge base — clean notes you can filter, link, and ask real questions of. Capture in seconds; find it forever. Plain Markdown underneath, so it travels anywhere.

iPhone Android coming soon

7-day free trial · €4.99/mo · No spam, ever

Tephra — the Vault, with the Record and Ask dock

Your best thinking happens out loud.

In the car, on a walk, between meetings — and then it's gone. Tephra catches the thought the moment you say it, and turns a scattered week of voice notes into something you can actually use.

Just talk

Tap record and think out loud — keep going with the screen locked or mid-walk. Live controls sit in the Dynamic Island.

AI does the filing

Your voice is transcribed on your device; then the text is formatted by AI — titled, summarized, tagged and linked to the people and ideas you mentioned. Never a raw transcript.

Your vault, your files

Plain Markdown with YAML and [[WikiLinks]] in your own iCloud Drive. Works with Obsidian. Yours forever.

From voice to note

You ramble. It files.

Tephra transcribes on your device, then shapes the text into a clean note — a real title, a tight summary, the right tags, and [[links]] to the people and projects you mentioned. Never a wall of raw transcript.

Auto title, summary & tags
People, projects & tools linked automatically
Plain Markdown you can read anywhere
A voice memo turned into a clean note — title, summary, tags and linked names, with the Markdown frontmatter below
The Vault

Everything you've said, instantly findable.

Every note lands in one calm, searchable place. Filter by your own tags, or tap a name to see every note that mentions it. Full-text search runs entirely on your iPhone.

Filter by your curated tags & entities
On-device search — nothing uploaded
Grouped by day, newest first
The Tephra Vault — voice notes grouped by day, with a tasks-waiting banner and tag filters
Tasks

Nothing falls through.

Say “remind me to email Sarah” inside any note and Tephra treats it as a task. Every open checkbox from every note collects on one screen — and anything left too long quietly resurfaces, so the small promises don't slip.

Tasks pulled from across all your notes
A gentle nudge when something's been waiting
Check it off — it writes back to the source note
The Tasks screen — open and completed tasks pulled from every note, grouped by Needs Attention, Open and Completed
Ask Tephra

Speak it in. Ask it back.

Ask a question out loud — “what did I decide with Marco?” — and Tephra answers from your own notes, citing the ones it used. The search runs on your device; only the final answer step touches the AI.

Ask by voice or by typing
Every answer cites the notes it came from
Your notes never leave to train anything
Ask Tephra — a question answered from the user's own notes, with the source notes listed
Private by design

It runs on your iPhone, not someone's server.

Your voice is transcribed locally with a Whisper model you choose — trade speed for accuracy, from a fast 150 MB model to the most accurate one. Audio never leaves the device, and every note is a plain file in your own iCloud Drive.

Pick your on-device model: Fast · Balanced · Accurate
Works with Obsidian — it's just Markdown
Use Tephra's AI, or bring your own API key
Choosing the on-device transcription model — Fast, Balanced or Accurate, with sizes and trade-offs
Pricing

One plan.
Everything in.

Start free for 7 days. Cancel anytime — your notes are plain files you keep either way.

Audio stays on your device· Your files, your keys· Made in Germany
€29.99 per year
Just €2.50/mo · save 50%
Get early access
Unlimited voice notes & AI formatting
Ask your notes — voice Q&A, answered with sources
Cross-note tasks that resurface
Entity linking, tags & knowledge graph
iCloud Drive sync — your files, always
Bring your own API key (optional)
Tephra

Stop losing your
best thinking.

Be first in line when Tephra launches. One email — the day it's live.

7-day free trial · €4.99/mo · Made in Germany

iPhone · Android coming soon

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