kitio.aiLine 21 vs Speechlogger
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Speechlogger is completely free, while Line 21 is paid.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Human and ASR live captioning
- AI translation
- AI proofreader
- RTMP and HLS streaming
- Meeting bot
- API
- Real-time transcription
- Instant translation
- Shared caption rooms
- Caption broadcasting
- Meeting notes
| Feature | Line 21 | Speechlogger |
|---|---|---|
| Best for | Live captions that mix human captioners with AI tools | Live captions and real-time translation for meetings and events |
| Category | Audio & voice | Audio & voice |
| Pricing model | Paid | Free |
| Starting price | $3 / hour | Free |
| Free plan | No | Yes, fully free |
| Made by | Line 21 | Speechlogger |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Speechlogger is completely free, while Line 21 is paid.
Free plan
Cheapest paid plan
Top plan
Free trial
6 plans
Caption minutes
$3 / hour
- Only when you bring your own captioners
- Caption view page
Meetings
$6 / hour
- Speech-to-text and translation
- Diarization
- Dedicated meeting page
AI translations
$9 / hour
- 120+ languages
- Custom dictionaries
ASR
$15 / hour
- Speech-to-text models
- Custom dictionaries
- Audio or RTMP ingest
AI proofreader
$21 / hour
- Context-aware LLM checks
- Custom event context
Human captioners
From $120 / hour
- Certified professional writers
- On-site or remote
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Line 21
- Combines human and AI captioning
- Works with Zoom, Teams and streaming platforms
- Pay-as-you-go billing
- Human captioning starts at $120 an hour
- Prices are per service per hour
- Built mainly for events and broadcasts
Speechlogger
- Captions and translation in real time
- Multiple speakers per room
- Classic version still available
- Live Captions is still in alpha
- Pricing and limits are not explained
- Dated interface
Which one should you choose?
Choose Line 21 if you want:
- Combines human and AI captioning
- Works with Zoom, Teams and streaming platforms
- Pay-as-you-go billing
Watch out: human captioning starts at $120 an hour.
Choose Speechlogger if you want:
- Captions and translation in real time
- Multiple speakers per room
- Classic version still available
Watch out: live captions is still in alpha.
Line 21 vs Speechlogger FAQ
What is the difference between Line 21 and Speechlogger?
Line 21: Live captions that mix human captioners with AI tools. Speechlogger: Live captions and real-time translation for meetings and events. Both are audio & voice tools.
Is Line 21 or Speechlogger cheaper?
Speechlogger is completely free, while Line 21 is paid.
Do Line 21 and Speechlogger have free plans?
Line 21: No. Speechlogger: Yes, fully free.
Who makes Line 21?
Line 21 is made by Line 21.
Who makes Speechlogger?
Speechlogger is made by Speechlogger.
Which should I choose, Line 21 or Speechlogger?
Choose Line 21 if you value combines human and ai captioning and works with zoom, teams and streaming platforms. Choose Speechlogger if you value captions and translation in real time and multiple speakers per room.