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TilEm is an emulator for Texas Instruments Z80-based graphing calculators, ported to Sailfish OS. It emulates the TI-73, TI-76.fr, TI-81, TI-82 / TI-82 STATS, TI-83 / TI-83 Plus / TI-83 Plus Silver Edition, TI-84 Plus / Silver Edition, TI-85 and TI-86. Everything runs on the device.

*** YOU NEED YOUR OWN ROM ***
A calculator ROM image is required and is NOT included: TI ROM images are copyrighted by Texas Instruments and cannot be distributed. Dump the ROM from a calculator you own, put it in Documents, and load it in the app.

PipeCam gives live view, snapshots and video recording for cheap USB-C pipe inspection cameras (endoscopes) on Sailfish OS. These cameras - sold as USeePlus, Geek szitman or supercamera - look like webcams but are not: they announce themselves as vendor-class USB devices, so no kernel driver binds them and no /dev/video node appears. PipeCam drives the USB endpoints directly with libusb and decodes the stream itself. Everything runs on the device - no network, no cloud, no telemetry.

svero is a native, unofficial Sailfish OS app that downloads the stored measurements from a Veroval blood-pressure monitor over USB, charts them, and exports them. It talks to the monitor's Prolific PL2303 USB-serial bridge directly via the kernel's raw usbdevfs interface - no libusb and no in-kernel pl2303 driver needed. Everything runs on the device - no account, no cloud, no telemetry; the data stays on your phone.

One slider that makes microphone recordings audible again - persistent, per app, no root, fully revertible.

THE PROBLEM
On my Sony Xperia 10 III, recordings from camera and audio apps come out 20-25 dB too quiet: speech peaks around -30 dBFS where a normal recording sits at -6 to -12 dBFS. The apps and PulseAudio's configuration are innocent - the vendor Android audio HAL that Sailfish reuses through libhybris is configured with far too low a microphone gain for the camcorder path, and fixing that properly would mean changing vendor audio configuration on the device.

Catcher Catcher watches the cellular state of your own phone and flags the classic fingerprints of a fake base station ("IMSI catcher" / "StingRay"): forced downgrades, unknown cells, missing neighbours, ciphering downgrades and silent SMS. It is a defensive, on-device research tool - everything runs locally, no telemetry, no cloud. It only ever observes your own device; it never transmits, jams, attacks or interferes with any network.

3DM Viewer opens a CAD file on the phone, draws it, and lets you turn it around. It is a viewer and nothing else: there is no editing and no save path anywhere in the program, so it can never write over the file you opened. Everything runs on the device - no network, no telemetry, no cloud.

iWifi turns a Sailfish OS phone into a passive Wi-Fi security checker: a heading-up radar of the access points around you, a per-hotspot security assessment, CVE lookup for the router model, and an optional monitor mode (external USB adapter) that defensively detects deauthentication attacks and evil-twin APs. It never transmits, injects, cracks or decrypts anything.

iNFC is a native NFC app for Sailfish OS that reads, identifies, stores and emulates NFC tags and smart cards. It talks to nfcd over D-Bus and never polls in the background: the radio stays off until you pull down and choose Read.

iBT — a passive Bluetooth / BLE observer for Sailfish OS

iBT turns a Sailfish OS phone into a strictly passive Bluetooth / BLE security and analysis tool. Using only the phone's own radio (via BlueZ), it listens to the advertising data that nearby devices broadcast anyway and makes sense of it — without ever transmitting, connecting, intercepting, attacking, logging or exporting anything.

Developed and tested on a Sony Xperia 10 III (pdx213). Much of it should work on other Sailfish OS devices too, but the Xperia 10 III is the reference device.

What it does

SF-Mail is an unofficial, security-friendly e-mail client for Sailfish OS with built-in OpenPGP and S/MIME. Its goal is to make encrypted e-mail genuinely easy: encrypt, decrypt and sign mail (PGP/MIME, inline PGP and S/MIME), including encrypted attachments. Accounts, folders and messages come from the system mail database, so the app sits next to the stock mail app and shares its accounts. "SF" is not short for Sailfish - it stands for making security friendly.