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Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.

Readable logo
Readable
✓ verifiedPaid

Instant English-to-Japanese PDF translation preserving layout; useful focused tool.

87K visits/mo177 saves
FGenEds logo
FGenEds
✓ verifiedFreemium

Turns lecture-slide PDFs into concise cheat sheets; for students who want quick study aids for general-education classes.

1.7K visits/mo8.7K saves
Side Reader logo
Side Reader
✓ verifiedFreemium

Browser extension that adds a PDF viewer/chat sidebar to ChatGPT, Claude, and DeepSeek for reading and querying documents.

341 visits/mo
Dr.Tail logo
Dr.Tail
✓ verifiedFreemium

24/7 AI-assisted pet-care app that centralizes health records and builds personalized, predictive care plans plus vet Q&A.

14K visits/mo
AskVideo.ai logo
AskVideo.ai
✓ verifiedFreemium

Lets you chat with any YouTube video for timestamped answers, best for learners and researchers skipping long watch time.

20K visits/mo20K saves
Pricing
Pro Standard (Yearly): 800 /month
Pro Premium (Yearly): 4,000 /month
for Business: Contact for Pricing

No public pricing

Free: $0/mo (limited uploads and file size)
Lifetime: $29 one-time (higher upload limits, capture-and-ask, custom prompts)

No public pricing

Free: $0 (100 AI messages/mo)
Premium: $8/mo (1,000 messages)
Pro: $29/mo (2,500 messages)
Business: $99/mo (8,000 messages)
Core features
  • Instant PDF translation
  • Layout preservation
  • Side-by-side English and Japanese viewing
  • Chrome extension for one-click translation
  • Translation without DeepL subscription (optional)
  • PDF lecture-slide upload
  • AI-generated cheat sheets
  • Example output preview
  • Free cheat sheets to start
  • Split-screen PDF viewer alongside AI chat
  • Zoom and text-copy tools for PDFs
  • Upload history tracking
  • Capture-and-ask screenshot querying (paid)
  • Custom prompt support (paid)
  • Bonnie AI vet assistant for questions
  • Personalized predictive care plans
  • Centralized pet medical records
  • Nutrition and weight tracking
  • Automated care reminders
  • Shared/collaborative pet care
  • Q&A on any YouTube video
  • Answers cited with timestamps
  • Video and audio upload transcription
  • Command-line interface
  • Cross-video search and collections
  • Embeddable chatbot widget
Use cases
  • Translating English research papers into Japanese
  • Translating technical specifications from English to Japanese
  • Quickly understanding English documents in Japanese
  • Condensing gen-ed lecture slides for studying
  • Making quick cheat sheets before exams
  • Researchers reading and querying PDFs via AI
  • Students studying documents with AI help
  • Professionals reviewing reports using ChatGPT/Claude/DeepSeek
  • Getting quick answers to pet-health questions
  • Managing a pet's records and reminders
  • Building proactive care plans for a pet
  • Studying lectures interactively
  • Extracting insights from webinars
  • Getting steps from tutorials
  • Searching across a playlist or channel
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