Real-time translation and document translation are different problems, and the tools that lead each are not the same. Picking the famous one for the wrong job is the usual mistake here.
1. PolyPal (AI Live Translator) - best for live speech
Built specifically for translating live conversation rather than text. Covers 95 languages, produces floating subtitles over whatever you are watching or doing, and integrates directly with Zoom, Skype, WhatsApp, YouTube, TikTok and Twitch.
That platform integration is what separates it. Google and DeepL translate what you paste; PolyPal sits on top of a call or a stream and subtitles it as it happens.
Free tier with limits, paid subscription available.
2. Google Translate - the most accessible
Free, on every device, and covers 100+ languages. Its conversation mode is serviceable for travel and short exchanges.
Where it falls short is sustained live use: it is built for turn-taking rather than following a meeting or a stream continuously, and platform integration is limited.
Free.
3. DeepL - the most accurate for text
The best translation quality of the three, and it is not close for written work: nuance, register and idiom come out noticeably better, particularly across European languages.
But it is a text and document tool. Real-time speech is not what it does, and it has no native integration with meeting or streaming platforms.
Free tier available, paid from around $9/mo.
Quick comparison
| Tool | Real-time speech | Languages | Platform integration | Price |
|---|---|---|---|---|
| PolyPal | ★★★★★ | 95 | Zoom, Skype, WhatsApp, YouTube, TikTok, Twitch | Free / paid |
| Google Translate | ★★★☆☆ | 100+ | Limited | Free |
| DeepL | ★★☆☆☆ (text focused) | 30+ | None native | Free / ~$9 mo |
Which one should you pick?
For live meetings, calls or streams: PolyPal. It is the only one of the three designed for continuous speech with subtitles over the platform you are actually using.
For travel and quick exchanges: Google Translate. It is free, it is already on your phone, and for a two-minute conversation nothing else is needed.
For documents, emails and anything written that matters: DeepL. The quality difference on written text is real and worth the subscription if you translate professionally.
The combination most people actually need is DeepL for written work and either Google Translate or PolyPal for speech, depending on whether your speech is casual or professional. No single tool here wins both categories.