Caplo

What is Caplo?

Caplo is an iOS app that provides real-time captions and translation for audio from other apps. Its core purpose is to let you follow spoken content as text while you’re using any app, with translation support in multiple languages.

The app can capture system audio or microphone input and transcribe it instantly, then translate the output on the fly to supported target languages. It also overlays captions on top of other apps using a picture-in-picture style view.

Key Features

Real-time transcription from system audio or mic input: captures what’s playing on your device (or what you say) and transcribes it instantly.
On-the-fly translation into 12 supported languages: translates the live transcription to English, Chinese, Japanese, and additional language options listed as part of the 12-language set.
Picture-in-picture caption overlay: shows floating captions over the app you’re currently using, so you don’t need to switch contexts.
Session history with iCloud sync: saved records can be synced across devices, with review available later.
Markdown export for transcripts: lets you export recorded text in Markdown format for copying or reuse.

How to Use Caplo

Install Caplo on iOS and open the app.
Start broadcasting/screen capture (the site describes “Start Broadcasting” as opening the app and starting Caplo’s screen broadcast).
Use any app while Caplo runs, then view live transcription/translation as on-screen captions.
When you’re done, review saved sessions and export text as Markdown if needed.

Use Cases

Live sports and broadcasts with commentary: follow real-time spoken moments while watching events like EPL/NBA with captions that appear during playback.
Unsubtitled anime or raw-language viewing: watch episodes without built-in subtitles and display live captions so you can follow along.
Cross-language communication in video calls: read real-time transcription and translated subtitles during meetings or chats.
Learning or training with recorded lectures: keep lectures and tech talks readable by viewing live captions as the audio plays.
Watching foreign social media and streamed content: make podcasts, YouTube/TikTok audio, and streams easier to understand when content has no subtitles.

FAQ

What is Caplo designed to do?

Caplo provides real-time captions and translation on iOS, turning spoken audio from any app into readable text.

What audio sources can Caplo use?

The app supports capturing system audio from the device or mic input.

Which languages does Caplo support?

Caplo supports 12 languages total. The site explicitly mentions English, Chinese, and Japanese, plus other languages within the 12-language set.

Can captions appear over other apps?

Yes. Caplo includes a picture-in-picture style floating captions overlay on top of the app you’re using.

Is there a way to export transcripts?

Caplo supports exporting recorded text as Markdown, and it also offers session history synced across devices via iCloud.

Alternatives

Live captioning or subtitle features built into streaming apps: these can offer captions for specific platforms, but may not provide system-wide translation or an overlay for “any app.”
Translation/caption apps that transcribe via microphone only: these may be useful for in-person or direct audio scenarios, but may not support capturing system audio from other apps.
Closed-caption or accessibility subtitle tools at the OS level: these can help with readability, though they may not include the same combination of real-time translation and picture-in-picture overlay described for Caplo.