6,622 tools, each one opened, scored and signed by a Toolio reviewer

Pluto.AI

Answers general-knowledge questions and serves up biographies and book summaries on iOS.

Checked 5 Oct 2026 Reviewed by Alex Listed since September 2024

Screenshot of Pluto.AI

At a glance

Starts at Free No paid plan found on the App Store, September 2026.
Free tier Yes
Platforms iOS
Best for Self-learners wanting quick answers across topics
Not for Anyone needing it on Android or desktop

3.9 out of 5

Scored by Alex after real use

Our verdict

Pluto.AI positions itself as an AI teacher for general knowledge, covering history, politics, science, and literature, with detailed biographies and book summaries built in. It's aimed at self-learners and scholars who want a broad reference assistant rather than a subject-specific tutor. It's iOS-only, so anyone on Android or a desktop-first workflow won't be able to use it at all.

✓What it does well

Broad topic coverageIt answers questions across history, politics, science, and literature.
Biographies and summariesIt provides detailed biographies and book summaries on demand.
Simple, guided interfaceThe app is built around a straightforward question-and-answer flow for easy use.

✕Where it falls short

iOS onlyIt's only available on iOS, with no Android or web version.
General knowledge, not expert depthIt's built for broad topics, not deep, specialist-level subject matter.
Accuracy needs checkingAnswers on history or science topics still need a manual check against a trusted reference.

Key features

General knowledge Q&AIt answers questions across science, history, politics, and literature.
Biography lookupIt provides detailed biographies of historical and notable figures.
Book summariesIt generates summaries of books on request.
Concept explanationsIt breaks down new concepts to help with learning.

Questions about Pluto.AI

What is Pluto.AI?

Pluto.AI is an iOS app that works as an AI teacher for general knowledge. It answers questions across history, politics, science and literature, provides detailed biographies of historical and notable figures, generates book summaries on request, and breaks down new concepts to help with learning.

Is Pluto.AI available on Android?

No. Pluto.AI is only available on iOS, with no Android or web version, so Toolio lists it as not for anyone who needs it on Android or desktop. The reviewer notes that anyone with a desktop-first workflow will not be able to use it at all.

Is Pluto.AI free?

Pluto.AI is free to use, with a free tier and no paid plan found on the App Store in September 2026. It is built around a straightforward question-and-answer flow that the reviewer describes as easy to use.

How accurate is Pluto.AI?

The reviewer advises that answers from Pluto.AI on history or science topics still need a manual check against a trusted reference. It is built for broad, general topics rather than deep, specialist-level subject matter, so it works as a reference assistant rather than a subject-specific tutor.

How does Toolio score Pluto.AI?

Pluto.AI has a Toolio score of 3.9 out of 5, given by Alex on 5 Oct 2026 after real use. Toolio lists it as best for self-learners who want quick answers across topics, and the reviewer notes it also suits scholars wanting a broad reference assistant.

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