Comet is the better app overall, scoring 8.2 to 7.9. Comet wins on 2 of the 5 scores, Speechify on 2, with 1 tied.
Researchers and heavy web users who want AI help beside every tab
Students, people with dyslexia and busy readers who prefer listening
Score by score
The details
| Feature | Comet | Speechify |
|---|---|---|
| Category | AI Assistants | AI Assistants |
| Category rank | #10 of 16 | #14 of 16 |
| Developer | Perplexity AI | Speechify Inc. |
| Pricing | Free + paid plans | Free + paid plans |
| Usable for free | Yes | Yes |
| iPhone & iPad | ✓ | ✓ |
| Android | ✓ | ✓ |
| Mac | ✓ | ✓ |
| Windows | ✓ | ✓ |
| Web | — | ✓ |
Common questions
Is Comet better than Speechify?
Comet is the better app overall, scoring 8.2 to 7.9. Comet wins on 2 of the 5 scores, Speechify on 2, with 1 tied.
Which is cheaper, Comet or Speechify?
Comet: Free on every platform; Perplexity Pro ($20 a month) and Max raise the limits. Speechify: Free with 10 basic voices; Premium is $29 a month or $139 a year. On value for money, Comet scores higher.
Do Comet and Speechify work on the same devices?
Only Speechify runs on Web.
Which is more private, Comet or Speechify?
Speechify scores higher on privacy (6.4/10). The App Store label says your device ID may be used to track you, while other data isn't linked to you. Speechify says it never sells your data, and the Windows app can keep voice processing on your PC.
Strengths and weaknesses
Comet
- Free on Mac, Windows, iPhone and Android
- Can act on pages, not just sum them up
- Your sessions sync between phone and computer
- A synced account lets Perplexity record your browsing history
- The helper has to read the pages you visit
- No Linux version
Comet is Perplexity's web browser, with an AI helper beside every tab. It can sum up a page or compare products across sites. It can even work through a multi-step task while you browse. Bigger jobs go to Perplexity Computer. It's free on Mac, Windows, iPhone and Android, and your sessions sync between them. The trade-off is privacy. The helper has to read your pages, and a synced account lets Perplexity record your history.
Full Comet review
Speechify
- Reads PDFs, web pages, docs and photos of text
- Natural premium voices in 60+ languages
- Works on phone, computer and browser
- Premium costs $29 a month if you pay monthly
- Free voices sound robotic and top out at 1.5x
- App label lists tracking through your device ID
Speechify reads almost anything aloud: PDFs, web pages, emails, ebooks and photos of printed pages. It suits people with dyslexia and anyone who'd rather listen than read, and it now doubles as a voice assistant with dictation, AI summaries and AI podcasts. Apps cover your phone, computer and browser. The free voices sound robotic and stop at 1.5x speed, and Premium costs $29 a month unless you pay yearly.
Full Speechify review
