Highlight your podcasts
like you highlight books

Mark moments, take voice notes, and ask questions while you listen. On-device AI. Works with any audio app.

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You listen to hours of brilliant content.
Your ears don't have a highlighter.

The host drops a brilliant insight, but you're driving and can't write it down.

Tap Mark and come back to it later.

Vagus Nerve Function Just now
The vagus nerve is the longest cranial nerve, running from brainstem to colon. Stimulating it via cold exposure or slow breathing activates the parasympathetic...
Huberman Lab

You want to capture an idea you just had, but don't want to break your podcast flow.

Record a quick voice note — it saves alongside whatever you were listening to.

Try Morning Walk Routine Just now
Start doing a 10-minute walk outside within first hour of waking. No sunglasses needed.
Voice note

The host just used some jargon you didn't understand, and you don't want to pause just to look it up.

Ask Mementi. It reads the transcript and answers on the spot.

What is the glymphatic system? Just now
The glymphatic system is the brain's waste clearance pathway, most active during deep sleep. It flushes metabolic waste including amyloid beta...
Huberman Lab
Mark a Moment

The highlight button for audio

Tap once to bookmark what you just heard. Mementi captures the last 90 seconds and transcribes it. Highlight your podcasts and audiobooks for later.

Record a Note

Scribble in the margins with your voice

Books have margins for your thoughts. Now your audiobooks do too. Hold to speak, and it saves alongside whatever was playing.

Ask to Explain

Look it up without looking away

Confused by something? Ask Mementi. It has the full context of what you're listening to and answers on the spot. Every Q&A is saved for later.

Listening to Huberman Lab
Moment saved
Recording...
On-device transcription
You asked:
What study are they talking about?
The host is referencing the 2019 University of Rochester study by Maiken Nedergaard, which found the glymphatic system is 60% more active during sleep. That's why he's connecting poor sleep to Alzheimer's risk earlier in the episode.
Saved to your library

Find any highlight, note, or ask

Find what you're looking for with semantic search or simply ask the AI what you want to know about your notes.

Sleep Toolkit Protocol 2h ago
Morning sunlight within 30-60 minutes of waking is the single most important thing for sleep quality...
Huberman Lab
Try Morning Walk Routine 1h ago
Start doing a 10-minute walk outside within first hour of waking. No sunglasses needed.
Voice note
Ask Mementi
Based on your notes, the key sleep optimization strategies are: get morning sunlight within 30-60 minutes of waking [1], keep your room at 65-68°F [2], and avoid caffeine after 2pm. These come from the Huberman Lab sleep toolkit episode.

Your audio never leaves your phone

On-device Whisper

Speech-to-text runs entirely on your phone using OpenAI's Whisper model.

Local-first with offline semantic search

Your data stays on your device. All memories are stored in a local database and searchable without an internet connection.

Optional Cloud AI

AI takes your notes further with auto-titles, instant answers, and connections you'd never find manually.

See it in action

Explore the app with sample data from real podcast episodes.

Listen

Play anything. Mementi listens with you.

Open any podcast or audiobook app. Mementi detects what's playing and silently transcribes on your device. Your audio never leaves your phone.

Highlight

Tap to highlight what you just heard

One tap captures the last 90 seconds. AI transcribes and titles it instantly. Like pressing a highlighter on a page — but for audio.

Search

Find your highlights by meaning

Search by what something was about, not exact words. "Sleep optimization" finds notes about circadian rhythms and melatonin even if those exact terms aren't in the query.

Ask

Ask questions across all your notes

"What have I learned about sleep?" pulls cited answers from every episode you've annotated. Like having a research assistant for your listening history.

Browse

Every episode, annotated

Browse by podcast, audiobook, or lecture. See every highlight, note, and question you captured from each episode — your personal annotated library.

Join the beta

Get early access to Mementi.

Android only for now. iOS coming soon.