BrainHack vs LightDrop

BrainHack is an interpreter app for B*******k. The B*******k programming language is an esoteric programming language noted for its extreme minimalism. It is a Turing tarpit, designed to challenge and amuse programmers, and was not made to be suitable for practical use. It was created in 1993 by Urban Muller. Commands: > increment the data pointer (to point to the next cell to the right). < decrement the data pointer (to point to the next cell to the left). + increment (increase by one) the byte at the data pointer. - decrement (decrease by one) the byte at the data pointer. . output a character, the ASCII value of which being the byte at the data pointer. , accept one byte of input, storing its value in the byte at the data pointer. [ if the byte at the data pointer is zero, then instead of moving the instruction pointer forward to the next command, jump it forward to the command after the matching ] command. ] if the byte at the data pointer is nonzero, then instead of moving the instruction pointer forward to the next command, jump it back to the command after the matching [ command.

LightDrop moves files between two devices that share no network. One screen shows a QR code, the other device's camera reads it. No Wi-Fi, no Bluetooth, no cable, no account, no server — just light. WHEN YOU NEED IT • An air-gapped or locked-down machine that will never join your network. • A work computer where USB ports are disabled and cloud drives are blocked. • Guest Wi-Fi that isolates every client, or a hotel network you would rather not trust. • A second screen nearby when email, cloud drives, and cables are not an option. • Anywhere a file has to cross an air gap and email is not an option. HOW IT WORKS • Pick text or a file on the sending device. LightDrop turns it into an animated QR stream. • Point the receiving device's camera at that screen. Fragments land continuously and the progress grid fills in. • Fountain coding means order does not matter and a dropped frame never restarts the transfer — keep the camera pointed and it completes. TURBO TRANSFER (PRO) • A binary QR fountain that packs a full 8 bits per byte instead of encoding through text — 10–30× the throughput of standard mode. • Up to 2900 bytes per frame, at up to 30 frames per second. • LightDrop to LightDrop. Standard mode stays on as a compatible fallback, and the receiver recognises both automatically with nothing to configure. PASSWORD ENCRYPTION (PRO) • Encrypt the payload with a password before it ever reaches the screen. • A bystander's camera can record every QR code and still get nothing without the password. • Standard AES-GCM. Nothing leaves your device to make it work. IMAGES, HANDLED • Photos are compressed automatically before sending, so a normal picture takes a minute or two rather than ten. • The receiving device previews the image inline and saves it to your photo library in one tap. • Images are detected by file content, not by file extension. NO NETWORK MEANS NO NETWORK • No account. No sign-in. No email address. • No server ever receives your data, because there is no server. • No analytics SDK, no advertising identifier, no third-party trackers. • Works in airplane mode, in a shielded room, or on a machine that has never been online. ONE PURCHASE, EVERY DEVICE LightDrop is the same app on iPhone, iPad, and Mac. Pro unlocks on every device signed in to your Apple Account with a single purchase. PRICING • Monthly — 7-day free trial for eligible new subscribers, then renews automatically each month unless you cancel at least 24 hours before the trial ends. • Lifetime — pay once and own it, with Family Sharing for everyone in your group. GOOD TO KNOW • Transfer speed depends on the sending screen's size and brightness, the receiving camera, and how steady you hold the device. Keep both screens clean and reasonably close. • Large files take real time. LightDrop estimates the duration before you start, so the decision is yours. — Privacy Policy: https://yangworks.dev/lightdrop/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ LightDrop Pro Monthly is an auto-renewable subscription. Payment is charged to your Apple Account at confirmation of purchase. It renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours before the period ends. Manage or cancel in your Apple Account settings after purchase. The Lifetime option is a one-time purchase with no renewal.