Small apps.
Serious work.

Music, documents, images, and the work in between. Find your app for Mac, iPhone, or iPad.

Browse 35 available apps

Device requirements, pricing, and privacy details on every app page.

Topoform on a Mac after processing abstract contour artwork into a carved bas-relief panel: style, score, size, and print estimate above the result contact sheet
Inside TopoformExplore the app
Purchase journeys

Know what you get.

3 jobs · result first

Transcribe an interview.

What you get

On a Mac, a transcript of the recording with speaker labels you can rename across the whole session, searchable alongside your other sessions, and exportable as text, SRT or WebVTT.

Limits

On the Mac, Apple silicon only: import WAV, MP3, FLAC or Ogg, after a one-time speech-model download of about 870 MB that you approve. iPhone and iPad use Apple's on-device speech recognition. Transcription stays on your device unless you turn on the optional Mac mode that sends audio or transcript text to a cloud account or server you configure.

Turn part of a song into a playable kit.

What you get

On a Mac, Ohm Split separates the song, writes the stem you pick as a file, and opens it in Ohms Sample, which cuts it at its transients into up to 16 slices you play from the screen, Mac keys, MIDI or a Launchpad.

Limits

The one-step hand-off from Ohm Split to Ohms Sample is Mac only, with both apps installed, and they are two separate purchases. Ohm Split separates 2 or 4 stems, plus an experimental 6-stem model on Mac, after a one-time model download.

  • Ohm Split
    iPhone + iPad + Mac · iOS 17+, iPadOS 17+, macOS 14+
    $9.99 one-time · no subscription
    App Store
  • Ohms Sample
    iPad + Mac · iPadOS 17+, macOS 14+
    $29.99 one-time · no subscription
    App Store

Redact a PDF and check that it held.

What you get

Two separate saves: an image-only PDF named -REDACTED and a verification report that lists each check with the SHA-256 hashes of input and output. A review that cannot be fully corroborated is marked UNVERIFIED, and a file whose removed text survives is named -FAILED-DO-NOT-SEND and never presented as a redaction.

Limits

Mac only, on Apple silicon. The exported PDF is image-only, so it is not searchable; keep your original. Detection is tuned for English-language documents and US identifier formats, and you decide every finding before anything is burned in.

Find your app.

36 of 36 apps

ProductivityiPhone + iPad + Mac

Silo Read

PDF, EPUB, and Word files into chaptered M4B audiobooks, on your device.

$19.99 one-time · no subscriptionPrivacy details
App Store
MusiciPad + Mac

Ohms Rehearse

The practice room that never listens back. Loop the bar you keep missing, start it slow, and climb to full speed on your Mac or iPad.

$8.99 one-time · no subscriptionPrivacy details
App Store
ProductivityiPhone + iPad + Mac

OhmsVoice

Speak. Transcribe on-device. Approve any optional provider before text is sent.

$19.99 one-time · no subscriptionPrivacy details
App Store
0 · Jobs

Start with the work.

5 workflows
Private PDF tools for MacOffline meeting notes without a botLocal AI music on Apple siliconPrivate contract and questionnaire reviewRemote coding agents without a Silo server
Existing app bundles

What job walked in the door?

3 collections · 14 apps

Privacy, app by app.

Most apps process your work on your device. Bring-your-own-key apps connect to the providers you configure; Citebound does that only for optional rewording and syncs through your private iCloud storage with Pro. Check each app’s privacy page for its specific connections before you download.

View on the App Store ↵Omar Quddusi · Silo Systems