Rewind · iPhone · Private by design

For moments
you realize
mattered after
they passed.

I built Rewind because some of the most important moments are the ones you only notice after they already happened. Save the joke your friends just made, the lecture point you missed, or the meeting notes you need later.

Works on iOS 18 or later Action button, Siri & Shortcuts Local transcription included
What it does

A second chance for
the audio around you.

Funny moments, missed explanations, and meeting takeaways are easy to lose in real time. Rewind lets you decide what mattered after it happens.

01 · Rolling buffer

Save what just happened, not everything.

Rewind keeps a short private buffer on your iPhone. Anything older than your save window is overwritten, and only the moments you choose become clips.

5:00 ROLLING BUFFER
WINDOW PRESETS
1 min 3 min 5 min 10 min 15 min
02 · Background

Ready while life is happening.

Keep listening while your phone is locked, in your pocket, or sitting on the table, so the last few minutes are there when you need them.

03 · Transcription

Turns saved audio into usable notes.

Saved clips become transcripts, summaries, and titles on device, making Rewind useful for lectures, meetings, and quick reminders.

[Speaker 1] So the trick is the brown
butter — you want it to smell
nutty, not burnt. Let it sit 
04 · Entry points

Capture the thought before it disappears.

Use the app, Action button, Shortcuts, Siri, or Spotlight when the moment clicks.

Action Button Shortcut → Save Rewind ⚡︎
Siri "Hey Siri, save Rewind"
Spotlight Capture Rewind
05 · Library

Find the part you meant to remember.

Saved clips are grouped by day and searchable by transcript, title, status, or date. Star, trim, and share the pieces worth keeping.

That joke at dinner
02:18 · SAT 7:42 PM
Lecture explanation I missed
04:12 · THU 10:05 AM
Project meeting recap
06:47 · FRI 9:21 PM
How it works

From missed moment
to saved note.

Start once, live your life, and save the last few minutes when something turns out to matter. Rewind keeps the capture path private and on device.

STEP 01

Start listening before you need it.

Tap start before class, a meeting, or time with friends. Rewind begins rotating short audio segments into a private rolling buffer.

Listening
Stop
STEP 02

Press save after the moment lands.

When you realize you want what just happened, press once from the app, Action button, Siri, Spotlight, or Shortcuts. Rewind turns the selected window into a clip.

Save last 5 min
STEP 03

Review it like a note.

Clips land in your Library with an on-device transcript, summary, and generated title. Use them as notes, memories, or shareable snippets.

Save from anywhere

Capture it the way
the moment allows.

Sometimes your phone is in your hand. Sometimes it is locked, in your pocket, or across the room. Rewind gives you quick paths back to the last few minutes.

Home Screen

Save the last few minutes from the app.

Action Button

Assign "Save Rewind" for fast capture.

Siri

"Hey Siri, save Rewind" when your hands are busy.

Spotlight

Swipe down and capture what just happened.

Shortcuts

Build save flows around class or meetings.

Privacy, not a promise

Your audio stays on the phone — because it never leaves it.

Rewind has no upload path, cloud library, or account. Saved clips, transcripts, summaries, titles, and rolling-buffer segments are written only to the app sandbox with file protection.

Transcription and summaries use local models on your iPhone. The only expected network call is the first-run download of the on-device transcription model. After that, the audio workflow runs offline.

No account No cloud Face ID gate Local AI
WHERE DATA LIVES
Saved clips Documents/Recordings DEVICE
Rolling buffer Caches/RollingBuffer DEVICE
Transcripts SwiftData → AudioClip DEVICE
Summaries & titles Local models DEVICE
Transcription model argmaxinc/whisperkit DEVICE
Sharing Only when you tap share EXPLICIT
FAQ

The questions everyone asks.

Straight answers about capture, battery, permissions, and what Rewind will and won't do.

Is Rewind always recording?

Only when you start it. While listening, it keeps a rolling buffer of the last few minutes and continually overwrites anything older. A clip is only written to your Library when you explicitly save.

Does Rewind send audio to the cloud?

No. There is no upload path in the app. Transcription, summaries, and titles are generated on device with local models. The only network call is the first-run model download.

Does it keep running when the phone is locked?

Yes, thanks to iOS's background audio mode. A watchdog keeps the recorder healthy through route changes, interruptions, and media-service resets.

How big is the save window?

You pick: 1, 3, 5, 10, or 15 minutes. When you save, Rewind stitches only the overlapping portion of the buffer into a single .m4a.

What about speaker labels?

Optional. When on, SpeakerKit diarization maps speakers onto transcript segments; if it can't, you still get the transcript with a fallback notice.

Can I lock the Library?

Yes. Turn on Face ID / device authentication and Rewind will gate the Library and clip details every session and on scene changes.

Available on iPhone · iOS 18+

Install Rewind for the jokes, lectures, meetings, and conversations you only realize you needed after they already happened.