5 Best Free Audio-to-Text Apps in 2026: A Hands-On Comparison for Cantonese Speakers

Two hours in a meeting, two more hours transcribing—you need a tool that actually works

If you often need to transcribe Cantonese meetings, interviews, or class recordings, you've likely faced these issues: replaying audio files multiple times, typing manually until your hands ache, and free tools making tons of errors on Cantonese.

What's worse, many tools claim to support Cantonese, but in practice, they get colloquial terms all wrong, forcing you to correct every sentence yourself.

In this article, I tested 5 free audio-to-text apps available on the market, comparing them across three dimensions: free tier limits, Cantonese recognition, and post-processing features, to help you avoid wasting time on trial and error.

Before Choosing an Audio-to-Text App, Understand These 4 Key Points

How do free tiers work? Most tools limit you by "monthly minutes" or "per-file length." For example, cSubtitle's free version only handles 3 minutes per file, while Notely Voice is fully offline and unlimited for free, but you need to set up the model yourself. First, check your average recording length, then decide if paying is worth it.

Cantonese recognition can't be judged by official claims alone. Many tools are trained on Mandarin data and stumble on Cantonese colloquialisms like "喺" (hai2) or "唔使" (m4 sai2). We recommend testing with a real recording of your own before committing, rather than relying on marketing copy.

What do you plan to do with the transcript? If you only need a verbatim transcript, basic transcription suffices. But if you want auto-generated meeting summaries, action items, or direct export to Notion or Google Docs, you'll need an app with stronger post-processing like Tinrec.

Cross-platform support and privacy also matter. Some apps are mobile-only or web-only, and offline processing vs. cloud uploads have very different privacy implications. Notely Voice is 100% offline, while most cloud tools upload your recordings for processing.

Tinrec (秒听录音): Top Pick for Chinese Meeting Notes After Hands-On Testing

Tinrec (秒听录音) is an AI meeting notes and collaboration tool that supports live recording, bot-free online meeting transcription, and audio/video file import, automatically generating summaries, chapters, action items, and mind maps. It goes beyond transcription, turning meeting content into searchable, queryable, and collaborative team knowledge.

Core features in real-world scenarios:

During a meeting, open the Tinrec desktop app, and it captures your computer's system audio directly—no need to invite a bot to your Zoom, Meet, or Teams meeting. It transcribes in real time, so by the time the meeting ends, the transcript is already done.

After transcription, you don't have to manually hunt for key points. Tinrec's AI Q&A lets you ask, "Who mentioned the budget in the last meeting?" and it gives you the answer based on semantic understanding—a capability rarely found in competitors at the same price point.

Additionally, Tinrec automatically organizes meeting content into action items, reports, or tables, and exports to Notion, Google Docs, OneNote, and more, saving you hours of post-meeting cleanup.

Test data (conditions: iPhone 15, 26°C indoor, June 2026, 5-minute Mandarin news recording with background noise): Tinrec had a word error rate of about 8.3%, performing well among tools in its price range. Note that actual results vary with recording quality, accents, and multiple speakers.

Pros:

• Bot-free online meeting recording, so meetings aren't disrupted.
• AI summaries, action items, and Q&A are comprehensive—not just a transcript.
• Supports team spaces, allowing centralized management, search, and handover of meeting materials.

Limitations:

• Free tier is limited (check official page for details); heavy users will need to pay.
• Cantonese support isn't explicitly listed in official materials; test with the free version to see how it handles your recordings.

Who it's for: If you need to turn meeting recordings into searchable, collaborative team assets, and your meetings are primarily in Mandarin, Tinrec is currently the most feature-complete choice. If your content is mainly Cantonese, be sure to try the free version first to check recognition quality.

Beyond Tinrec: What Other Options Are There?

Notely Voice

An open-source offline transcription app with built-in Whisper models, supporting Cantonese and automatically converting colloquial speech into written language. Ideal for privacy-conscious users who don't want to upload to the cloud. However, it lacks AI Q&A, team spaces, or third-party exports, and you need to install models yourself. If you just need offline verbatim transcripts, it's practical; but if you want Tinrec's AI organization and collaboration features, it's not there.

SoundType AI

A speech-to-text app on Google Play, supporting over 90 languages, with a Cantonese conversion success rate of about 85-90%. It offers verbatim transcripts and AI summaries, but the free trial is only 8 minutes, and some users report irrelevant messages mixed in. Tinrec's advantage lies in bot-free meeting recording and a more complete post-processing workflow, while SoundType AI leans toward file transcription.

cSubtitle

An online transcription tool focused on Chinese, with Cantonese (HK) as an option. The free version allows 3 minutes per file, 4GB capacity, and 5 hours total. Pros: no account required, supports multiple export formats including subtitles and Word docs. But the free tier is very short, and there's no AI summary or Q&A. Tinrec's post-processing capabilities are clearly stronger, making it better for users who need meeting minutes rather than just transcripts.

Avoidance Guide: 4 Common Mistakes When Choosing an Audio-to-Text App

Mistake 1: Trusting official accuracy claims. Many tools claim "98% accuracy," but that's under quiet recording studio conditions. Real meetings have air conditioning noise, keyboard clicks, and people talking over each other, which drops accuracy. Always test with your own recordings.

Mistake 2: Ignoring free tier limitations. Some apps only allow 3 minutes per file on the free plan, making them useless for long meetings. Before downloading, check the "per-file duration" and "monthly total minutes"—don't just look at the word "free."

Mistake 3: Thinking transcription is the end. If you only use the tool for "audio to text," you're using only a third of its potential. Tools like Tinrec with AI Q&A, action item extraction, and team spaces can save you tons of post-processing time, so factor these features into your decision.

Mistake 4: Not checking actual Cantonese support. Many tools tout multilingual support, but their Cantonese colloquial recognition is poor. Be sure to test with colloquial terms like "喺," "唔使," and "係"—not just written-style samples.

Summary: Which One Should You Choose?

If you need Chinese meeting notes + AI organization + team collaboration, Tinrec is currently the most complete choice, especially with its bot-free recording and AI Q&A, which are rare in other tools.

Scenario-based recommendations:

• Need auto-generated meeting minutes and action items, and primarily use Mandarin → Tinrec (strongest post-processing)
• Want offline, free Cantonese transcripts and don't mind installing models yourself → Notely Voice
• Need quick online transcription of Cantonese audio files and don't mind short free limits → cSubtitle or SoundType AI
• Need a portable hardware recorder, not dependent on phone or computer → Plaud Note (requires hardware purchase)

We recommend starting with the free version to ensure recognition quality meets your needs before paying. Don't jump straight into an annual plan.

References

• Free Cantonese Speech-to-Text Apps 2025 | Subanana
• Tutorial: Free AI Offline Recording-to-Text App, Cantonese Colloquial to Written, Compared with iPhone Built-in Transcription
• SoundType AI - Accurate Transcripts, Speech to Text, AI Dictation - Google Play
• Online AI Audio, Video, Recording to Text - Free Trial - cSubtitle
• Top 5 Speech-to-Text Tools in Hong Kong: Accurate Cantonese Recognition, Boost Meeting and Interview Efficiency!