Comparison

Realtime Interpreter AI vs CaptionStudio

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Realtime Interpreter AI

This app provides live translated subtitles and audio for conversations, meetings, and online content. It supports automatic language detection and offers export options for translation history. Ideal for cross-language communication in various settings.

Highlights
  • Near real-time translated subtitles
  • Translated speech playback via headphones
  • Automatic input language recognition
  • Translation history export
  • Picture-in-picture subtitles
  • API key or App Credits support
Features
Read full description

Realtime Interpreter AI turns live speech into translated subtitles and translated headphone audio for meetings, videos, online classes, and international events. Choose a target language, start listening, and follow the conversation with live translated captions. When headphone playback is enabled, translated speech is spoken aloud so you can keep your eyes on the room, the video, or your notes. Key features: - Near realtime translated subtitles - Translated speech playback through headphones - Automatic input language recognition - Translation history with original and translated text - Copy and Word export for saved sessions - Picture-in-picture subtitles on iPhone and iPad - Use your own API key or App Credits The app is designed for meetings, lectures, online courses, webinars, videos, travel, and everyday cross-language communication. Privacy Policy: https://caolonghua.com.cn/realtime-interpreter-ai/privacy.html Terms of Use: https://caolonghua.com.cn/realtime-interpreter-ai/terms.html

About

CaptionStudio

This app transforms audio and video into editable, translatable, and exportable timed captions. It also offers features for meeting notes, live floating captions, and conversation translation, all processed and stored locally on your device for enhanced privacy.

Highlights
  • Audio and video caption generation
  • Caption translation and editing
  • Meeting note transcription and organization
  • Live floating captions for apps
  • On-device conversation translation
  • Multiple export formats (SRT, WebVTT, TXT, MP4)
Features
Read full description

Turn audio and video into editable, translatable, export-ready timed captions—and keep meetings and conversations on your device. CaptionStudio brings media captions, meeting notes, floating captions, and conversation translation into one app. No account is required. Media, recordings, captions, and saved translation history are processed and stored on device by default. AUDIO & VIDEO CAPTIONS • Import MOV, MP4, M4V, M4A, MP3, WAV, or AAC files, or choose a video from Photos • Generate timed captions with native speech recognition • Play, seek, correct, split, merge, and add captions on a visual timeline • Translate captions and edit original, translated, or bilingual text • Customize fonts, size, colors, outline, background, and position • Export SRT, WebVTT, or TXT, or burn captions into an MP4 video MEETING NOTES • Record audio while creating a transcript • Organize the transcript into an overview, key points, decisions, and action items • Replay the recording and edit every section • Export meeting notes with the transcript as Markdown FLOATING CAPTIONS • Use iOS system broadcasting to transcribe audio from supported apps • Follow live captions in Picture in Picture • Show original, translated, or bilingual captions • Customize window ratio, text size, lines, alignment, colors, and background • DRM, broadcast, and audio-source restrictions may prevent some content from being transcribed CONVERSATION TRANSLATION • Speak a phrase, translate it, and hear it aloud • Swap source and target languages • Keep conversation history on device and delete it at any time PRIVACY FIRST • No account, ads, or developer-operated cloud upload • No third-party analytics or advertising SDKs • iOS manages required language resources; some models may need to be downloaded before first use • Recognition, translation, and language availability depend on the device, system version, and available models New users receive a 7-day full-feature trial on first launch. After the trial, choose a one-year access purchase that does not auto-renew or a lifetime unlock. Purchases and refunds are handled by Apple. Speech recognition, translation, and generated notes can be affected by accents, noise, overlapping speakers, and system models. Review important content against the original recording or video.

Screenshots

Realtime Interpreter AI4 screens
CaptionStudio4 screens

Verdict

The call

The clearest difference is ratings volume: CaptionStudio at 3 against Realtime Interpreter AI's 1. Realtime Interpreter AI's advantage is iOS requirement (17.0 vs 26.0). On price, rating, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Realtime Interpreter AI sells 7 in-app purchases, starting at $3.99 per month and CaptionStudio sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Realtime Interpreter AI against 5.0 for CaptionStudio. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Scorecard2 real differences · 8 level
Realtime Interpreter AI versus CaptionStudio: the parameters behind the verdict, then further details
ParameterRealtime Interpreter AICaptionStudio
PriceFreeFree
Rating5.0 (1 ratings)5.0 (3 ratings)
Positive reviews—100.0% of reviews
Number of ratings13 — better
Update frequencyFortnightly—
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better26.0
Further details — not scored
Size3 MB10 MB
Age rating4+4+
DeveloperGuangxi Xingqi Guangying Culture Media Co., Ltd.夏骏 倪

Customer experience

Realtime Interpreter AI

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

CaptionStudio

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

7 purchases

Realtime Interpreter AI

Subscriptions3
  • Light Monthly$3.991 Month
  • Pro Monthly$7.991 Month
  • Max Monthly$12.991 Month
One-time4
  • 8 Minute Pack$0.99
  • 30 Minute Pack$2.99
  • 90 Minute Pack$6.99
Show 1 more
  • 200 Minute Pack$14.99
1 purchases

CaptionStudio

One-time1
  • 永久会员$1.99

Questions

Is Realtime Interpreter AI free?
Realtime Interpreter AI is free to download, with in-app purchases available.
Is CaptionStudio free?
CaptionStudio is free to download, with in-app purchases available.
Which has better reviews, Realtime Interpreter AI or CaptionStudio?
Realtime Interpreter AI and CaptionStudio are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.
Do Realtime Interpreter AI or CaptionStudio have ads?
Neither Realtime Interpreter AI nor CaptionStudio shows ads.

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