Syntex vs OnDevice

Syntex is a clean, fast developer toolkit built for people who write code. Stop switching between browser tabs just to format a JSON response, generate a UUID, or convert a timestamp. Syntex puts 8 essential dev tools in one place — always offline, always instant. — TOOLS INCLUDED — { } JSON Formatter Paste any JSON and instantly format it with proper indentation. Validates structure and highlights errors so you know exactly what's wrong. b64 Base64 Encode plain text to Base64 or decode Base64 strings back to readable text. Great for working with APIs, tokens, and encoded payloads. uid UUID Generator Generate one or multiple UUIDs (v4) in lowercase or uppercase. Copy individually or copy all at once. ts Timestamp Converter Convert Unix timestamps to human-readable dates, or pick any date and get the Unix timestamp back. Shows current time live. Aa Text Case Transform text between 8 formats instantly: UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case, PascalCase, and CONSTANT_CASE. ### Hash Generator Hash any string with MD5, SHA-1, SHA-256, or SHA-512. Results appear instantly as you type. Copy with one tap. ▦ QR Code Generator Generate a scannable QR code from any text or URL. Save directly to your Photos library or share with any app. /// Notes & Snippets A quick-access notepad for API keys, code snippets, curl commands, and anything else you need at your fingertips. Local, private, no sync required. — WHY SYNTEX — • Works 100% offline — no internet required • No accounts, no sign-in, no tracking • Dark interface built for developer comfort • Monospaced typography throughout • Instant results — no loading, no spinning Built by a developer, for developers.

OnDevice is a local-first AI studio for iPhone. Run compatible language, vision, speech, and image models on your device. Browse models and choose what to download. Model size, memory use, and speed depend on your hardware. CHAT AND CREATE Ask questions, write, work with code, save snippets, and export conversations. Use camera or photo input with a compatible vision model, or use built-in OCR without downloading a vision model. Voice conversations use local Apple speech by default, with optional downloadable neural voices. Compatible image models support local image generation, which can be restricted with a parental PIN. YOU CHOOSE THE CONNECTIONS Local inference uses installed models. Network features are optional: model discovery and downloads, web search, paired Mac tools, a local API, and iCloud sync. Web providers may receive the queries or content you choose to send and may require their own API account. No app account is required for local use; there is no analytics SDK. REQUIREMENTS Requires iOS 18 or later. Downloadable models need storage and sufficient available memory. The app may pause or refuse heavy workloads when the device is too hot or memory is low. Model compatibility and performance vary by device.