kitio.aiReadSpeaker vs CastReader
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. CastReader has the lower starting price: about $3 a month, against $9 for ReadSpeaker.
Reads web pages, PDFs and Kindle books aloud and explains hard passages
Freemium · $4.99/moAt a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- webReader for websites
- docReader for documents
- speechCloud API
- Embedded speechEngine SDK
- Custom brand voices
- LMS integrations
- Read aloud with highlighting
- Read & Explain
- Kindle and PDF support
- 32 voice languages
- Personal voices
| Feature | ReadSpeaker | CastReader |
|---|---|---|
| Best for | Text-to-speech voices for websites, e-learning and products | Reads web pages, PDFs and Kindle books aloud and explains hard passages |
| Category | Audio & voice | Audio & voice |
| Pricing model | Paid | Freemium |
| Starting price | $9/mo | $4.99/mo |
| Free plan | No | Yes |
| Made by | ReadSpeaker | CastReader |
| Based in | Netherlands | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
CastReader has the lower starting price: about $3 a month, against $9 for ReadSpeaker.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Individual
$9/mo
- Non-institutional use
- Starting price
ReadSpeaker Online
Custom
- Annual license
- Priced by students or inhabitants
- Ongoing support and training
Custom Voice
Custom
- One-time development fee
- License fee by solution
3 plans
Free
Free
- 20 minutes of listening a day
- 3 AI explains a day
- Upload your own files
Pro
$4.99/mo
- No daily listening cap
- Full ebooks and long PDFs
- Premium voices up to 3x
Pro Yearly
$35.99/yr
- Same as Pro
- About $3 a month
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
ReadSpeaker
- Voices in more than 90 languages
- Ready-made LMS integrations
- Cloud, server and embedded options
- Custom voice development available
- Institutional pricing needs a quote
- No free plan listed
- Large product range to sort through
CastReader
- Works across books, articles and AI chats
- Low monthly price
- Apps on every major platform
- Free tier limited to 20 minutes a day
- Support varies by source
- Premium voices need Pro
Which one should you choose?
Choose ReadSpeaker if you want:
- Voices in more than 90 languages
- Ready-made LMS integrations
- Cloud, server and embedded options
Watch out: institutional pricing needs a quote.
Choose CastReader if you want:
- Works across books, articles and AI chats
- Low monthly price
- Apps on every major platform
Watch out: free tier limited to 20 minutes a day.
ReadSpeaker vs CastReader FAQ
What is the difference between ReadSpeaker and CastReader?
ReadSpeaker: Text-to-speech voices for websites, e-learning and products. CastReader: Reads web pages, PDFs and Kindle books aloud and explains hard passages. Both are audio & voice tools.
Is ReadSpeaker or CastReader cheaper?
CastReader has the lower starting price: about $3 a month, against $9 for ReadSpeaker.
Do ReadSpeaker and CastReader have free plans?
ReadSpeaker: No. CastReader: Yes.
Who makes ReadSpeaker?
ReadSpeaker is made by ReadSpeaker, based in Netherlands.
Who makes CastReader?
CastReader is made by CastReader.
Which should I choose, ReadSpeaker or CastReader?
Choose ReadSpeaker if you value voices in more than 90 languages and ready-made lms integrations. Choose CastReader if you value works across books, articles and ai chats and low monthly price.