Disclosure: we make Prof Insider. What we say about Mentiv comes from its own public pages as of September 30, 2026, listed under “How we compared” below, and from our own testing and review where noted. Prof Insider is new, and some features described here, including follow-ups and the replies inbox, are still rolling out.
Short answer: Choose Mentiv if you'd like to describe your interest in a sentence and get professors ranked by how well their recent papers fit, with each email opening on one of their findings. Choose Prof Insider if you want professors from its own database covering named US and Canadian universities, drafts from your resume that you change by asking, and follow-ups and replies designed to land in one inbox.
Mentiv's home page is short, so parts of this come from its sign-up page, privacy policy and terms. It doesn't publish prices, coverage, or how it finds email addresses.
What Mentiv is
Mentiv helps high school and college students find professors whose recent work matches what they want to study. You write your interest in plain English, and it searches the Semantic Scholar graph for faculty whose papers from the last few years align, ranked by relevance and recency. It then drafts an email in your voice that opens on a specific finding from one of their papers and draws on your background. You can send it through Gmail or copy it anywhere.
Mentiv vs Prof Insider at a glance
| Feature | Mentiv | Prof Insider |
|---|---|---|
| Built for | High school and college students, 13 and older (under 18 with parental consent) | High school, undergraduate and graduate students |
| Where professors come from | The Semantic Scholar publication graph, ranked by relevance and recency | The most accurate, verified professor database, built in-house; not pulled from free public databases |
| Stated coverage | Not stated | 188 US and Canadian universities, including 26 in Canada |
| Writes the email | Yes, in your voice, opening on a finding from one of their papers | Yes, in your voice, from your resume and the professor's research |
| Changing a draft | Not described; its privacy policy says it sends only emails you approve | Ask for changes in plain English |
| How emails are sent | Optional Gmail connection with send-only access, or copy it anywhere | Sends from your own Gmail, now or scheduled |
| Follow-ups and replies | Open tracking on emails it sends; follow-ups not stated | Built to follow up and bring replies into one inbox (not live yet) |
| Email address checks | Not stated | Flags addresses that look generic or belong to someone else |
| Extras | Keeps your search history and avoids emailing the same professor twice | Sorts professors into matches and skips from your resume |
| Price | Says you can start free; paid prices not published; uses credits | Not yet listed |
| Availability | Open for sign-up | New; follow-ups and the replies inbox are still rolling out |
Mentiv’s column is from its public pages on September 30, 2026; prices are as listed there. Prof Insider’s column describes our own product.
What Mentiv does well
- You don't need keywords. You describe your interest in a sentence, with no tags or filters to set.
- It weighs recency as well as relevance, which favors professors publishing on your topic now.
- Every draft is anchored to a specific finding in a real paper.
- Its Gmail connection is optional and send-only, and its privacy policy says it never reads your inbox.
- It keeps your history and says it stops you emailing the same professor twice.
Where Prof Insider is different
- Prof Insider uses its own professor database, built in-house, adds papers where it can match them, and sorts professors into matches and skips from your resume. Mentiv starts from the papers.
- Prof Insider names its coverage: 188 US and Canadian universities, 26 of them in Canada.
- Prof Insider drafts from your resume and the professor's research, and you change a draft by asking in plain English.
- Prof Insider is built to follow up and bring replies into one inbox. Mentiv tracks opens and doesn't describe follow-ups.
- Prof Insider flags addresses that look generic or belong to someone else. Mentiv doesn't say how it checks addresses.
Finding professors: a paper search or a professor database
Mentiv's search runs on the literature. You write what you want to study, and it looks through Semantic Scholar for faculty whose work over the last few years fits. That's a strong way to find people active on a narrow topic, even before you know the field's vocabulary.
Paper databases list everyone who has published, including graduate students and postdocs, so a paper match shows what someone works on, not whether they're a professor who can take you. Prof Insider's list isn't pulled from publication databases; it's its own database, built in-house. Either way, check a lab page before you write.
The opening line: one finding from one paper
Mentiv builds every email around a specific result from one of the professor's papers, then ties it to your background, in your voice. That targets a common weak spot in cold emails: a vague first line. Be ready to talk about the paper if the professor writes back.
Prof Insider also drafts in your voice, from your resume and the professor's research, and you revise by asking. Mentiv doesn't say how you revise a draft, only that each one is ready to send or copy. Either way, how to email a professor for research shows how to make a paper reference real.
After you send: opens, follow-ups and privacy
Mentiv sends through a Gmail connection that can only send, and its privacy policy says it never reads your inbox. Emails sent that way carry an invisible tracking pixel, so your dashboard can show when a professor opened your message. The policy calls this best effort, since it doesn't fire when images are blocked.
Prof Insider sends from your Gmail and is built to follow up and bring replies into one inbox, which would need more access than sending alone. If you'd rather keep permissions to a minimum, or paste emails into your own client, Mentiv's send-only option asks for less.
Which should you choose?
Choose Mentiv if
- You'd rather describe your interest in a sentence than pick fields and filters
- You want each email to open on a specific finding from a paper
- You want to know when a professor opens your email
- You want Gmail to have send-only access, or prefer to copy emails yourself
Choose Prof Insider if
- You want professors from a database covering named US and Canadian universities
- You want drafts built from your resume that you change by asking
- You want a tool built to handle follow-ups and replies in one inbox
- You want addresses flagged when they look generic or wrong
Common questions
Does Mentiv send emails for you?
Yes, if you connect Gmail. Its privacy policy says it sends only emails you draft, review and approve, using access that can't read your inbox. You can also copy the email and send it yourself.
How much does Mentiv cost?
Mentiv doesn't publish its prices. Its sign-up page says you can get started free, and its terms say some features use credits and that subscriptions renew until you cancel.
Where does Mentiv find professors?
In the Semantic Scholar graph. It looks for faculty whose papers from the last few years match the interest you describe, ranked by relevance and recency. It doesn't say which universities or countries it covers.
What is a good Mentiv alternative?
Prof Insider suits you if you want professors from its own database of 188 US and Canadian universities. ConnectEd searches the web live and publishes its prices, and Research.Mail writes an email for a professor you've already found.
How we compared
On September 30, 2026 we read Mentiv’s public pages below. We report what Mentiv says about itself, and say when something comes from our own testing, our review or our inference. Features and prices change, so check its site before you decide.