SelectTranslate vs SonaCap
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SelectTranslate
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【SelectTranslate】Free AI translator for bilingual Web, PDF, papers, video, meetings, images & ebooks. Powered by 20+ top AI models. 【AI Expert】 and 【Termbase】 are now live! Built-in popular experts and termbases are ready to use, and custom experts and terms are also supported, making translation for specialized domains more accurate and professional! 【Bilingual Webpage Translation】: Intelligently identifies and translates webpage content, displaying the translation beneath each original paragraph for a clean, seamless bilingual reading experience. 【PDF Translation】: Completely free PDF translation function, offers rapid translation of foreign language documents while preserving the original document format and layout. 【PDF Plus】: The advanced PDF translation function is designed specifically for translating academic papers and various professional PDF documents. 【ePub e-book translation】: With SelectTranslate, you can easily convert various foreign language ePub eBooks into bilingual versions that are fully compatible with a wide range of e-book readers, helping you break down language barriers and enjoy high-quality global literary resources. 【More Document Translation Features】: Also supports translating Word, TXT, HTML, Markdown, and subtitle files (SRT/ASS). 【Video Subtitle Translation】: Supports bilingual subtitle translation on major global streaming platforms such as YouTube, Netflix, Disney+, and TED. 【Online Meeting Translation】: Supports real-time translation for a variety of mainstream online meeting platforms (voice subtitle translation, chat message translation, chat input translation), making cross-language communication smoother and more efficient. 【Optimal Translation】: An industry‑first approach that runs multiple translation models in parallel and uses a scoring model to intelligently score the outputs and automatically select the best translation, significantly improving both accuracy and reliability. 【Image Translation】: Supports quick translation of webpage images by right-click or hover, with the translated text fitted in place so reading stays uninterrupted. 【Input Translation】: Simply type text into webpage input fields for quick translation. 【AI Expert】: AI translation prompts tailored for different domains, with dedicated roles and translation rules that make specialized content more accurate and professional. 【Termbase】: Stores and manages standard translations of specialized terms across different scenarios to keep terminology accurate and consistent. 【Service & Support】: If you encounter any issues or have suggestions during use, feel free to contact us via our service email. Email: service@selecttranslate.com 【Terms of Use】: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
SonaCap
This app provides real-time audio subtitles and translated text for foreign-language audio and webpages. It features a built-in browser for video sites and a broadcast mode to capture audio from other apps. Privacy is maintained as data is processed on-device.
- Realtime audio subtitles
- Translation of audio and webpages
- Built-in browser
- Broadcast mode for external audio
- On-device processing for privacy
- Bookmarks and multi-page browsing
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SonaCap turns foreign-language audio and webpages into readable subtitles and translated text. Use the built-in browser for supported video websites, or start Broadcast and play audio from another app while SonaCap stays open. Features: - Realtime audio subtitles and translation - Built-in browser for video and audio websites - Webpage text translation - Bookmarks and multi-page browsing - 5 free minutes of realtime audio subtitles - One-time Full Unlock for unlimited realtime audio subtitles SonaCap does not upload your video, audio, or caption text to SonaCap servers. By default, Apple Speech recognition is limited to on-device processing when the selected input language supports it. Translation uses Apple's Translation framework and system-managed language resources. Captions and translations may be inaccurate or delayed. Do not rely on SonaCap for emergency, medical, legal, safety, financial, navigation, or other high-risk decisions.
Screenshots
Verdict
The clearest difference is update cadence: SonaCap at every 5 days against SelectTranslate's every 3 weeks. SelectTranslate's advantage is device support (4 vs 2) and iOS requirement (15.6 vs 26.0). On price, 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
Both are free to download. SelectTranslate sells 4 in-app purchases, starting at $6.00 per month and SonaCap sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
SelectTranslate ships an update every 3 weeks, SonaCap every 5 days. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.
| Parameter | SelectTranslate | SonaCap |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, Mac |
| Requires iOS | 15.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 42 MB | 149 MB |
| Age rating | 17+ | 17+ |
| Developer | HKZINGSOFTWARELIMITED | XUANBEI LU |
In-app purchases
SelectTranslate
- Plus Monthly Plan$6.001 Month
- Pro Monthly Plan$12.001 Month
- Plus Annual Plan3 Days trial$66.001 Year
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- Pro Annual Plan$132.991 Year
SonaCap
- SonaCap Unlock$5.99
- SonaCap Mac Unlock$5.99









