Sideby: Offline Translator

Sideby is a conversation translator built for talking face to face, even with no signal.

Put the phone between you: each person speaks their own language, Sideby translates and reads the translation aloud. Everything runs on your phone, with no internet once the languages are downloaded.

🗣️ CONVERSATION (free)
- Face-to-face mode: split screen, the top half faces the other person
- Side-by-side mode: one conversation, one mic each (green for you, red for the other person)
- Hands-free mode: the mic opens by itself for the reply
- Keyboard to type instead of speaking
- Tap a sentence to hear it again, long press to copy it

⭐ SIDEBY PRO (€5.99 once, no subscription)
- 📷 Photo translation: take a picture of a menu, a sign, a label, and the translation appears right on the image
- 🕘 History: your conversations saved on your phone, with search and sharing
- 📖 Phrasebook: 50+ ready-made phrases (restaurant, transport, hotel, health, emergency) in 11 languages, plus your favourites, shown in large text for the other person
- All future Pro features

✈️ 100% OFFLINE
- Translation on your phone, no connection needed
- Built-in offline speech recognition (Parakeet, SenseVoice, Whisper), no internet needed
- Translations read aloud by your phone's voices, offline once its voice data is installed (Sideby shows you how)
- Perfect for travel, flights, and abroad without data

🔒 PRIVATE
- Your conversations and photos stay on your phone
- No account, no ads, no tracking

🌏 11 LANGUAGES
Asia specialist: Chinese (Mandarin), Japanese, Korean.
Plus: English, French, German, Spanish, Italian, Dutch, Polish, Portuguese.
Any combination of these languages.
App available in English, French, Chinese, Japanese and Korean.

One-time download per language (about 30 MB), then everything works offline.