For travelers heading to Japan
A translator that survives the Tokyo Metro.
Cove Travel runs Google Gemma 4 E2B on your phone — no Wi-Fi, no cloud, no per-translation upload. Pack it once before your flight, then translate kanji menus, station signage, and convenience-store nutrition labels with cell signal at zero bars.
The three most common Japan scenarios
-
Tokyo Metro at rush hour
Platform sign half kanji, half a temporary A4 notice. Cell signal underground is alive but every translation app times out. You have ninety seconds before the next train.
Cove: open camera, point at sign, answer in under one second. No network in the loop.
-
Late-night izakaya menu
Handwritten on a wooden board. Half the dishes use cooking-style kanji (`焼`, `蒸`, `揚`) that need cooking context, not just literal lookup. Someone in your party has a shellfish allergy.
Cove: reads cooking-context kanji and lets you ask "is there shrimp paste in this sauce?" without retaking the photo.
-
2am at a Tokyo combini
Lawson, FamilyMart, 7-Eleven. The back of a snack pack tells you whether it is gluten-free, halal, or contains the Tokyo- only ingredient your travel companion can't eat.
Cove: reads ingredient lists, flags allergens, translates storage instructions — entirely offline, on your device.
Cove vs Google Translate offline packs
| Dimension | Cove Travel | Google Translate offline |
|---|---|---|
| Context-aware | ✓ Gemma 4 E2B generative | × Statistical pack |
| Camera (kanji) | ✓ Cooking kanji with context | ○ Literal OCR |
| Multi-turn follow-up | ✓ Yes | × No |
| Price | $3.99 once | Free |
Honest version: Google Translate offline is free and fine for basic word lookup. Cove’s edge is generative context — Japanese menus, polite conversation, complex signage are where the difference shows up.
Ready to fly?
The night before your flight, download the 2.5 GB model on Wi-Fi and run the airplane-mode test once. The full Japan playbook is in this blog post.