kitio.aiAkkadu vs Line 21
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Akkadu starts at See pricing page and Line 21 starts at $3 / hour. Check both pricing pages for current plans.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Live captions in 90+ languages
- Works with any meeting app
- Choice of translation engine
- Custom glossaries
- Profanity filter
- Event and stream captions
- Human and ASR live captioning
- AI translation
- AI proofreader
- RTMP and HLS streaming
- Meeting bot
- API
| Feature | Akkadu | Line 21 |
|---|---|---|
| Best for | Desktop app for AI live captions and translation in 90+ languages | Live captions that mix human captioners with AI tools |
| Category | Audio & voice | Audio & voice |
| Pricing model | Freemium | Paid |
| Starting price | See pricing page | $3 / hour |
| Free plan | Yes | No |
| Made by | Akkadu | Line 21 |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Akkadu starts at See pricing page and Line 21 starts at $3 / hour. Check both pricing pages for current plans.
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
Akkadu
- Platform-independent captions
- Glossaries improve accuracy
- Supports events and streams too
- Requires a desktop app
- Pricing not shown in evidence
- Accuracy varies by accent and audio
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
Which one should you choose?
Choose Akkadu if you want:
- Platform-independent captions
- Glossaries improve accuracy
- Supports events and streams too
Watch out: requires a desktop app.
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.
Akkadu vs Line 21 FAQ
What is the difference between Akkadu and Line 21?
Akkadu: Desktop app for AI live captions and translation in 90+ languages. Line 21: Live captions that mix human captioners with AI tools. Both are audio & voice tools.
Is Akkadu or Line 21 cheaper?
Akkadu starts at See pricing page and Line 21 starts at $3 / hour. Check both pricing pages for current plans.
Do Akkadu and Line 21 have free plans?
Akkadu: Yes. Line 21: No.
Who makes Akkadu?
Akkadu is made by Akkadu.
Who makes Line 21?
Line 21 is made by Line 21.
Which should I choose, Akkadu or Line 21?
Choose Akkadu if you value platform-independent captions and glossaries improve accuracy. Choose Line 21 if you value combines human and ai captioning and works with zoom, teams and streaming platforms.