Independent software studio
Audio, video & privacy
Turbo Ventura builds audio, video and privacy tools for iPhone and iPad. We compile our own media engine rather than renting someone else’s, keep files where their owner put them, and stay with an app long after the release note.
01
Catalogue
1 published
Convert video and audio to 38 formats, separate a song into its instruments, and edit on a multitrack timeline — twenty-five tools in one app. The work runs on the device, with no account and no upload.
See the app
Hide photos, videos, notes and documents behind 256-bit encryption, Face ID and a decoy vault that shows something else. The app can even open as a calculator.
Read more
More apps are being written. Each one appears in this index when it is on the store, not before.
02
Practice
8 notes
Our engine, in formats
MP3M4AAACWAVFLACALACAIFFOPUSOGGWVW64CAFWMAAC3MP2DTSAMRAMR-WBGSMSPXOGAAUSNDVOCIRCAMMP4MOVMKVM4VAVIWEBMWMVFLVTSMPG3GP3G2GIF APETTAM4BE-AC3MKAM2TSMTSVOBOGVDIVXASFF4V
The same build sits under everything we ship: all 38 formats it writes in the accent, and a few of the ones it only reads in plain type.
Our vault, in layers
CHACHA20-POLY1305256-BITA KEY PER FILEPBKDF2KEYCHAINFACE ID DECOY VAULTCALCULATORCLOCKNOTEPADBREAK-IN ALERTS
What protects a file in Pic Vault in the accent, and the ways the vault hides in plain sight in plain type.
01
MP3 Converter runs on an FFmpeg build we make from source — LGPL-clean, with only the codecs we actually ship enabled. It is more work than linking somebody else’s binary, and it is why a file that fails everywhere else usually opens here.
02
If what is inside a file can be copied out untouched, we copy it instead of re-encoding it. The result is the original bits rather than a copy of a copy, and it finishes in seconds. Most tools re-encode everything, because that is the easy path.
03
Pic Vault encrypts every file with 256-bit ChaCha20-Poly1305 under a key of its own, and seals the keys with your passcode on the device. File names and albums are encrypted too, so even the list of what is inside gives nothing away.
04
The strongest vault is one that does not look like one. Pic Vault can open as a working calculator, hand over a decoy vault with its own passcode, and photograph whoever guessed the wrong code.
05
Conversion, editing, AI separation and encryption run locally. There is no upload step, no account to create, and nothing of yours waiting on a machine we own — a file leaves the phone only when you send it somewhere yourself.
06
SwiftUI, drawn for iPhone and iPad and for the current version of iOS: Dynamic Type, VoiceOver, Face ID, the share sheet, the lock screen, widgets. The system already decided how these work. Android versions are on the way, built for Android rather than ported to it.
07
The free tier does real work. What a purchase removes is quantity and convenience — never the feature the app is named after, and never with a countdown to force the decision.
08
An app is not finished at release. Ours get format fixes, security updates, new iOS versions and the small repairs nobody writes a changelog line about, for as long as people are using them.
03
Contact
One inbox
We take on a small number of partnerships a year: publishing an app that deserves a better home, or building one with a team that needs the hard media parts done properly. Press and store enquiries reach the same inbox.
[email protected]