AI browsers and extensions
Monica: review, pricing, data and alternatives
Monica lets users chat with multiple AI models, summarize pages and videos, and ask questions about PDFs. It also translates documents while preserving layout and generates images and videos. A free tier exists; the first paid plan costs $99 per year. Access and transparency score: 55/100, #3 of 6 in its category.
What is Monica?
Monica lets users chat with multiple AI models, summarize pages and videos, and ask questions about PDFs. It also translates documents while preserving layout and generates images and videos.
According to its documentation, Monica lets you:
- chat with multiple AI models
- summarize pages and videos
- ask questions about PDF documents
- translate a document while preserving its layout
- generate images and videos
We file it under AI browsers and extensions, the category of tools to use AI right in your browser, and it also overlaps with general AI chatbots and aI for documents and PDFs. The category lists 6 verified tools on this site.
The publisher is BUTTERFLY EFFECT PTE. LTD..
Who is it for?
It is mostly useful to these profiles: content writers, students, marketers, and translators. The need it covers is simple to state: use AI right in your browser.
Monica is a good candidate if:
- you want to try before paying
- you plan to connect it to your tools or automations through its API
- you also work from your phone
Before deciding, run a trial on a real task and measure the time saved: it is the only criterion that really counts.
How much does Monica cost?
Pricing model: freemium (limited free use, then paid). A free plan is offered, usually limited in volume or features.
The first paid plan costs $99 per year (Annual Pro; displayed equivalent of 8.3 USD per month), according to the pricing page, checked on October 24, 2026.
Per month, that is cheaper than the category median ($19.9 per month, based on tools with a published price).
To estimate what the same work would cost done directly with an AI model, use our API price calculator. Prices change often: always check the official site before subscribing.
Data and privacy
According to its privacy policy, data is processed in the United States.
For professional use, check that a data processing agreement (DPA) is offered, and do not send customers' personal data or confidential documents without one.
No export feature is documented: keep a copy of your content elsewhere.
Three habits apply to every AI tool:
- turn off the use of your content for training if the option exists
- use a work account separate from your personal account
- review everything the tool produces before publishing or sending it
Platforms, languages and API
Monica runs on: web browser, Windows, macOS, iPhone and iPad, Android, browser extension, and API.
Interface languages: English.
A public API lets you call it from your own programs or an automation tool, and plug it into an AI agent.
How we scored it
Our 55/100 score does not judge output quality: it measures what can be publicly verified about access to the tool, its openness and how far the publisher can be trusted.
| Criterion | Points | What counts |
|---|---|---|
| Access | 25/30 | free tier, published price, French interface |
| Openness | 10/30 | API, data export, open code |
| Trust | 20/40 | identified publisher, declared hosting, age, presence in reference lists |
The full calculation is explained on our method page.
Comparison with alternatives
Monica against other tools in the aI browsers and extensions category:
| Tool | Free | Entry price | API | Score |
|---|---|---|---|---|
| Monica | Yes | $99 per year | Yes | 55 |
| Comet | Yes | $20 per month | – | 55 |
| Sider | Yes | not published | – | 55 |
| Merlin | Yes | $19 per month | No | 48 |
| Dia | Yes | $20 per month | – | 40 |
| Opera Neon | Yes | $19.9 per month | – | 40 |
Verdict
Monica is among the most accessible and transparent tools in its category.
Strengths
- Free tier to try it
- Cheaper than its category median
- Public API
- Available on many platforms
Limitations
- Data export not documented
Avoid if…
- You handle sensitive personal data without a processing agreement
- You need to easily retrieve your full history
Alternatives
- Cometfree tier
- Siderfree tier
- Merlinfree tier
- Diafree tier
- Opera Neonfree tier
Categories and jobs
Learn more
Frequently asked questions
Is Monica free?
Yes, a free plan exists, with usage limits. The first paid plan costs $99 per year.
Where is Monica data stored?
According to the publisher, in the United States.
Does Monica have an API?
Yes, a public API is documented.
What are the alternatives to Monica?
In the same category: Comet, Sider, Merlin, and Dia.
Monica or Comet: which one to choose?
Monica starts at $99 per year, Comet at $20 per month and our score is 55/100 for Monica and 55/100 for Comet. Try both on the same task before paying.
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Neutrality. No affiliate links. No vendor pays to be reviewed, rated or ranked. Reviews are directed by François Chollet, neutral and factual, and every data point is dated and sourced. How we score