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Perplexity vs NotebookLM: web research or questions about your own sources?

By Official AppDuo editorial team · Updated

Perplexity logoPerplexity7.2/10Freemium · $20.00/moNotebookLM logoNotebookLM7.5/10Freemium · $4.99/mo

Quick verdict

Perplexity vs NotebookLM: web research or questions about your own sources.

Perplexity: People who research often and need citations to check claims.

NotebookLM: Students and researchers who need to read and synthesise many long documents.

Choose for your main task, existing devices and plan limits; the overall score cannot replace your requirements.

Head-to-head

Perplexity leads on 1, NotebookLM on 4, 4 even

FeaturePerplexityNotebookLM
Where answers come from[4],[13]Live web results, with citations in every answer.Answers only from the sources you add, with in-line citations.
→ Pick Perplexity for fresh web lookups and NotebookLM for working through a fixed set of your own documents.
Cheapest paid plan[1],[13],[17]Pro: 20 USD/month, or 17 USD/month billed annually.Google AI Plus: $4.99/month or $49.99/year (US App Store); 132,000 VND/month in Vietnam.
→ Anyone wanting higher limits on a small budget pays much less with NotebookLM.
Top-tier plan price[1],[17]Max: 200 USD/month, or 167 USD/month billed annually.Google AI Ultra: from 2,250,000 VND/month in Vietnam; AppDuo could not verify an official USD price.
→ The top tiers are listed in different currencies, so they are hard to compare directly, and only heavy users need them.
What the free plan allows[1],[14]Capped usage with basic models; the pricing page says the cap is both daily and weekly.100 notebooks, 50 sources and 500 notes per notebook, using Gemini models at standard access.
→ NotebookLM's free tier has clearly stated limits, so you know in advance how much you can use.
Your data used for AI training[11],[14]On by default for Free, Pro and Max; can be switched off, but only for data collected afterwards.Consumer data is not used for training unless you send feedback; never used for Workspace and Cloud.
→ People who want their material kept out of training from the start are better served by NotebookLM.
Platforms[5],[12]Web, iOS, Android, macOS and Windows (Comet browser), plus an API.Web, iOS and Android.
→ Perplexity suits desktop users and developers who need to build on an API.
Integrations[12],[13]Search API, Agent API, Comet browser and Email Assistant.Gemini app, Google Drive, Google Workspace and Google Cloud.
→ Google ecosystem users will find NotebookLM more convenient, while developers benefit from Perplexity's APIs.
User ratings[8],[18],[19]App Store 4.8/5 (about 525,000); Google Play 4.6/5 (2,230,546); Trustpilot 1.4/5 (850).App Store 4.9/5 (64,860); Google Play 4.7/5 (355,000).
→ Both rate highly on the app stores, but Perplexity's low Trustpilot score is a warning sign about support and billing.
Refunds and support[3],[8],[13]Subscriptions are nonrefundable; email and docs support; many reviews report charges after cancelling.AppDuo found no public refund policy; billed via Google One or app stores; docs and community support.
→ Perplexity offers email but excludes refunds, while NotebookLM depends on Google One or app store terms, so check before paying.

Choose Perplexity if…

  • People who research often and need citations to check claims
  • Eligible students and educators considering Education Pro
  • Developers who need a web search API or an answer API with citations

Choose NotebookLM if…

  • Students and researchers who need to read and synthesise many long documents
  • People who like podcast-style summaries on the go

How the products differ

Perplexity: Perplexity suits people who want quick lookups with sources they can check inside the answer. The trade-offs are a steep Max tier, a poor Trustpilot score driven by support and billing complaints, and a growing list of copyright lawsuits.

NotebookLM: A good fit for students and researchers who want summaries and Q&A over a fixed set of documents, with in-line source citations and a fairly generous free tier. The trade-offs: the name and limits have changed more than once, and answers stay within the sources you add.

Choose around your use case

Perplexity: Fits People who research often and need citations to check claims; Eligible students and educators considering Education Pro. Strengths: Answers link to their original sources, so they are easy to check.; Models from OpenAI and Anthropic are available in one app..

NotebookLM: Fits Students and researchers who need to read and synthesise many long documents; People who like podcast-style summaries on the go. Strengths: Answers cite sources in-line, making it easy to check against the originals; Free tier allows 100 notebooks and 50 sources per notebook per the help page.

Costs and limits to check

Perplexity: Pro: 20 USD/month, as recorded in the review. Trade-off: Max costs 200 USD/month on monthly billing, ten times Pro..

NotebookLM: Google AI Plus: 4.99 USD/month, as recorded in the review. Trade-off: The name and limits have changed, so figures in older articles often go stale. Prices retain the currency and billing units recorded in the source profiles; no currency conversion or plan equivalence is assumed. Check official prices, limits and terms before payment.

When to consider another option

Perplexity is not aimed at: People who mainly want a general chatbot for long-form writing or open-ended chat; People who want their data kept out of AI training by default.

Consider alternatives to NotebookLM if you are: People who want a general-purpose chatbot answering freely beyond their own documents. Read these limitations alongside the feature table before deciding; a single strength cannot compensate for a missing requirement.

Frequently asked questions

Should I choose Perplexity or NotebookLM?

Perplexity vs NotebookLM: web research or questions about your own sources. Perplexity: People who research often and need citations to check claims. NotebookLM: Students and researchers who need to read and synthesise many long documents. Choose for your main task, existing devices and plan limits; the overall score cannot replace your requirements.

Does a higher score always mean a better fit?

No. Overall scores are editorial judgements across several criteria. Your task, allowance and existing ecosystem may matter more; the table separates those differences so you can decide.

Where do prices and limits come from?

From each product’s researched profile, with source links and check dates in the review. This comparison reuses that evidence; its compilation date does not mean every price was rechecked that day.

Sources

Numbers in the table refer to these sources, read on the dates shown.

  1. 1.Official pricing page · Vendor-provided · Nov 10, 2026
  2. 2.Official privacy notice · Vendor-provided · Nov 10, 2026
  3. 3.Official terms of service · Vendor-provided · Nov 10, 2026
  4. 4.Help Center: What is Perplexity? · Vendor-provided · Nov 10, 2026
  5. 5.Official Comet page · Vendor-provided · Nov 10, 2026
  6. 6.App Store listing (US) · store · Nov 10, 2026
  7. 7.Google Play listing · store · Nov 10, 2026
  8. 8.Trustpilot reviews · review-site · Nov 10, 2026
  9. 9.Finout: Perplexity pricing in 2026 (April 2026) · press · Nov 10, 2026
  10. 10.Wikipedia: Perplexity AI · Community-reported · Nov 10, 2026
  11. 11.Help Center: Data collection at Perplexity · Vendor-provided · Nov 10, 2026
  12. 12.Developer documentation · Vendor-provided · Nov 10, 2026
  13. 13.Official plans page · Vendor-provided · Nov 10, 2026
  14. 14.Official help page (privacy, limits) · Vendor-provided · Nov 10, 2026
  15. 15.Google blog: rename announcement · Vendor-provided · Nov 10, 2026
  16. 16.Google blog: inside story of building NotebookLM · Vendor-provided · Nov 10, 2026
  17. 17.Google One AI plans (Vietnam) · Vendor-provided · Nov 10, 2026
  18. 18.App Store listing · store · Nov 10, 2026
  19. 19.Google Play listing · store · Nov 10, 2026
  20. 20.TechCrunch (2025-05-20) · press · Nov 10, 2026
  21. 21.AlternativeTo (2026-07-17) · press · Nov 10, 2026

Prepared by the AppDuo Editorial Team from the sources cited in this article. AI assists with organising and cross-checking data; editorial responsibility remains with AppDuo.

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