Relativity Widget vs OffLingua

Relativity Widget allows you to visualise Einstein's theories of relativity right on your home screen. Two modes : • Special Relativity: imagine that you are in a spaceship travelling at a chosen speed. If you travel fast enough, time will pass differently on earth... • General Relativity: you are on earth while a friend of yours went on a journey, in a spaceship, at a chosen distance to a Schwarzschild black hole. If you are close enough, time will pass differently in the spaceship... Relativity Widget clocks represent the difference in time flow, since midnight, between a high speed / high gravity experiencing reference frame and a low speed / gravity one, according to Einstein's theory of relativity.

OffLingua is a powerful, privacy-first offline translation app that runs entirely on your iPhone, redesigned from the ground up to feel like a brand-new product while keeping its core promise intact: no internet, no uploads, no tracking. Powered by TranslateGemma 4B, Google DeepMind’s advanced open translation model running fully on-device, OffLingua delivers high-quality AI translation across 55 languages including English, Spanish, French, German, Chinese, Japanese, Arabic, and more, even in airplane mode or remote areas. The app supports multiple input methods in a refined, premium interface: instant text translation, photo translation with automatic OCR and improved overlay readability, and natural voice translation using on-device speech recognition. A clear three-mode navigation (Text, Speech, Photo) sits at the core of a new visual identity with modern typography, spacing, accent colors, intentional motion, and translation cards that offer clearer hierarchy, micro-feedback, inline “listen” actions, and smarter error states. New features elevate the experience further, including a Quick Translate Panel for one-tap translation, language swapping, live transcripts, speak and listen modes, and smooth translation streaming. Conversation history is stored locally in an encrypted database, allowing you to switch languages mid-conversation and resume any session from the sidebar. Transparent on-device performance indicators clearly show when the app is offline-ready or when the model is downloading, without exposing technical clutter. All translations happen 100% on your device. No cloud servers. No data collection. No tracking. Your text, voice, and photos never leave your iPhone, fully compliant with GDPR and global privacy standards. Download the AI model once on WiFi, then use OffLingua offline forever. Break language barriers without breaking your privacy.