SSH Client vs Sensor Playground

Lightning fast SSH terminal with remote file access. No other app fuses your SSH servers and iOS devices as well as Secure ShellFish. Tap Get and see for yourself. Terminal supports standard text editing gestures for selection, scrolling and copy/paste as well as custom gestures to send arrow keys and tabulator making shell entry and full screen editing with vim or emacs delightful. Bar above the keyboard makes it easy to type special keys and insert snippets. Select and drag filenames out of the terminal as actual files and drag files from other apps into the terminal to upload. Use built-in tmux support to persist terminal sessions if you lose Internet access, pick existing sessions with thumbnails and Handoff sessions between devices. Server file system is available in the Files app and recently accessed files and directories are cached to make them available when offline. Use apps like Textastic and iA Writer for a native editing experience working on your remote server files. Upload files or entire directories from the share sheet with minimal friction as the last destination directory for each kind of file is remembered or automate file transfers in the Shortcuts app. Connect to your Mac, Synology NAS and any other SSH server or create new Digital Ocean droplets right from the app. Secure ShellFish is useful as a free app and paying pro users can disable ads in the terminal, upload through the Files app and configure unlimited number of servers.

Sensor Playground turns your phone into a live dashboard for DIY sensor nodes built on the ESP32 or a Raspberry Pi class single-board computer. Flash the free companion firmware onto your board, wire up a supported sensor, and the app finds the node automatically on your local network or via Bluetooth LE — no cloud, no account, no registration. Readings appear as clear cards and live charts, updated in real time. CONTINUOUSLY GROWING Development is ongoing: updates ship regularly, and support for new sensors is added continuously. If your favourite sensor is not on the list yet, chances are it will arrive in one of the next updates. HIGHLIGHTS • Automatic discovery of sensor nodes over Wi-Fi (LAN) and Bluetooth LE • Live cards and charts for every measured quantity • Air-quality rating derived from IAQ, CO₂ or eCO₂/TVOC readings • Dedicated screens for gesture, distance and contact sensors • Send bitmaps to an SSD1306 OLED display node • Signal-strength badge for Bluetooth nodes • °C/°F switch, English and German, screen-reader friendly • Everything stays on your own network: TLS-encrypted and API-key protected — no cloud involved SUPPORTED SENSORS (and counting) • Environment & air quality: BME680, BME280, SCD30, SGP30, MCP9808, SHT31, SHT41, AHT10/AHT20, CozIR-A • Light & optical: SI1145 (sunlight/UV), TCS34725 (color), analog light sensor • Motion & orientation: IMU 10DOF, MPU6050, MMA7660 • Infrared temperature: MLX90615 (non-contact) • Positioning: Air530 GNSS/GPS • Event-driven: PAJ7620 gesture, VL53L0X laser distance, button, hall sensor, magnetic switch, PIR motion, vibration • Display: SSD1306 OLED (128×64) GOOD TO KNOW • You need at least one sensor node: an ESP32 or a Raspberry Pi class board running the free, open companion firmware. Arduino sketches and Python scripts are available for every supported sensor. • A built-in simulated sensor lets you explore the app before any hardware is connected. • Scanning and discovery are free for all sensors. Data visualisation for a few selected sensors requires a one-time in-app licence purchase, which supports the ongoing development. Whether you are a maker, a teacher, a student or simply curious about the air in your room — Sensor Playground makes hardware experiments visible.