The short answer: Google Translate’s tap-to-translate needs you to copy the text first; a screen translator overlay reads text directly from the screen. If the text you translate is copyable and occasional, tap-to-translate is fine. If it lives in chats, games, images, or subtitles — or if you translate many times a day — an overlay like Swift Translate is the faster tool.
How each one works
Tap-to-translate (Google Translate). You copy text in any app, and a translate button appears. Tap it and a popup shows the translation. Simple, free, and built into an app you may already have.
Screen translator overlay (Swift Translate). A floating bubble sits above your apps. Drag it over any text — copyable or not — and the translation appears in place. No copying, no popup, no switching.
The comparison that matters
| Tap-to-translate | Screen overlay | |
|---|---|---|
| Copyable chat text | ✓ works | ✓ works |
| Game dialogue | ✗ can’t copy | ✓ |
| Text in images | ✗ | ✓ |
| Video subtitles, live | ✗ | ✓ |
| Replying in another language | ✗ manual | ✓ type and send |
| Effort per message | copy + tap + read + close | one drag |
The honest recommendation
- You translate a few times a week, mostly copyable text → tap-to-translate is enough.
- You translate chats every day, or anything that can’t be copied → get an overlay. The per-message effort difference is small once, and large across a whole conversation.
Many of our users keep both: Google Translate for typing out longer texts, the bubble for everything that happens inside other apps.
Related: Screen translator · The 7 best screen translator apps compared
