Allegrow review (2026): is it worth $99 a month?
B2B email verification with catch-all results and mailbox health
Black Friday: is there a Allegrow sale?
Allegrow report card
Fair · out of 4.0 · graded Nov 12, 2026
Best for verifying B2B emails with catch-all results
Allegrow verifies B2B email lists and reports on catch-all addresses and mailbox health. Starter is $99 a month for 5,000 contacts, the free trial leaves out integrations and the API, and the unlimited plan with native HubSpot and Outreach connections is $1,340 a month.
Who Allegrow is for
- Fits if you send B2B outreach and want catch-all addresses sorted out
- Works for sales teams that want list cleaning and mailbox health in one place
Who Allegrow is not for
- Pricey if you are one person: Starter is $99 a month for 5,000 contacts
- Pricey if you want native CRM links, as they sit on $1,340 a month billed annually
- Watch out: the trial leaves out integrations, API access and mailbox connection
- Watch out: extra users cost $40 a mailbox or user, and the Starter page gives no billing period
Why Allegrow gets a 2.0
Five grades, each with its reason. The GPA is their average: an A is 4 points, an F is none.
- DValue for moneyStarter is $99 a month for 5,000 contacts, which is where the dearest tenth of deliverability tools starts. Extra credits are $8 per 1,000, and unlimited verification is $1,340 a month.
- CFree plan and trial14-day trial that verifies up to 1,000 addresses, without integrations, API access or mailbox connection. There is no free plan, and the listing does not say if a card is needed.
- CFeaturesCatch-all verification, risk flags, domain health and DNS monitoring. Starter has no native integrations and API access is on request.
- CEase of useNo store rating on record. You upload CSVs and connect a mailbox for domain tracking, so there is some setting up.
- BPlatforms and integrationsWeb, with native HubSpot, Outreach and Salesloft only on the top plan and a Clay link through an API key.
What these grades rest on. Graded from this listing, whose facts were read from Allegrow's own pages on 12 November 2026. Not based on using the product, and shorter than our full reviews. How we review and grade.
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<a href="https://toolgpa.com/tools/allegrow#review"><img src="https://toolgpa.com/badge/allegrow.svg" alt="Allegrow: 2.0 GPA on ToolGPA" width="196" height="56"></a>Where Allegrow stands among email verification and deliverability tools
Allegrow's GPA of 2.0 is higher than 4 of the 38 other email verification and deliverability tools we grade, and level with 7.
It stands best on platforms and integrations (B, above 14 of 38) and worst on value for money (D, above 0).
Its paid plans start at $99 a month, against a middle price of $17.49 for the category: 23 of the 25 others that charge start lower.
On features, ease of use and platforms it scores 2.3 out of 4. 8 tools score higher and cost less.
Each grade against the category
Every bar is all 39 email verification and deliverability tools we grade, cut by the letter each got. Allegrow’s own letter is outlined.
- DValue for moneyAbove 0 of 38, level with 4
- CFree plan and trialAbove 5 of 38, level with 28
- CFeaturesAbove 0 of 38, level with 23
- CEase of useAbove 1 of 38, level with 28
- BPlatforms and integrationsAbove 14 of 38, level with 24
Price against what you get
Each dot is one of 26 email verification and deliverability tools. Further left costs less, and higher up scores better on features, ease of use and platforms. Point at a dot to see which tool it is.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Keep Allegrow, or make your own?
Keep it
To replace Allegrow you would be making a network of real inboxes that open and answer your emails. That is not a weekend's work, with an AI app builder or without one.
That makes this kind of software worth paying for, not this one in particular: 27 of the 38 other email verification and deliverability tools grade higher. It costs $1,188 a year.
What you could not
- A network of real inboxes that open and answer your emails.
- Checking that an address exists without writing to it.
- Reading the reports inbox providers send about your domain.
What this rests on. Allegrow’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
What is Allegrow?
Allegrow verifies email addresses for outbound sales teams and gives catch-all contacts a Valid or Invalid status instead of an unknown one. It also flags spam traps, disposable addresses and inactive mailboxes, and detects each contact's primary email. Paid plans connect mailboxes to track domain health, with hourly SPF, DKIM and DMARC monitoring.
Worth knowing
- The free trial excludes integrations, API access and mailbox connection.
- Starter has no native integrations and runs on credits; extra users cost $40 per mailbox or user.
- Unlimited verification and native integrations need Scale Plus Unlimited at $1,340 a month billed annually.
- The Starter price carries no billing period on the page.
Key features
- Catch-all verification
- Gives catch-all addresses a Valid or Invalid status rather than leaving them as unknown.
- Risk flags
- Identifies spam traps, disposable addresses and inactive mailboxes, and detects each contact's primary email.
- Domain health tracking
- Starter connects 1 mailbox to track domain health and reputation, with automated positive email interactions.
- DNS monitoring
- Paid plans check SPF, DKIM and DMARC records every hour.
- CRM and sales tool integrations
- Scale Plus adds native integrations for HubSpot, Outreach and Salesloft and automated workflow rules.
Allegrow pricing
As of Nov 12, 2026, Allegrow is a paid product with a free trial, starting at $99 per month for 5,000 contacts a month.
- Starts at
- $99 per month for 5,000 contacts a month
- Free plan
- None
- Free trial
- 14-day free trial that verifies up to 1,000 addresses, without integrations, API access or mailbox connection.
| Plan | Price | What you get |
|---|---|---|
| Starter | $99per month for 5,000 contacts a month | CSV list cleaning, API access on request, a Clay integration through an API key, and 1 connected mailbox for domain health tracking. Extra credits cost $8 per 1,000 contacts. |
| Scale Plus Unlimited | $1,340per month, billed annually | Unlimited verification, native HubSpot, Outreach and Salesloft integrations, API capped at 1M requests a month, and a customer success manager. Sold by demo request. |
| API Plan | Custom | Priced for millions of API requests a month, with unlimited API keys and custom sync and async speeds. |
Read from allegrow.co on Nov 12, 2026. Prices change, so confirm with Allegrow before you buy.
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Common questions
Does Allegrow have an Android app?
No Android app was listed when its pages were read on Nov 12, 2026. Allegrow is listed for Web.
Does Allegrow have an iPhone app?
No iPhone app was listed when its pages were read on Nov 12, 2026. Allegrow is listed for Web.
Is Allegrow open source?
Allegrow is not described as open source on its own site, as read on Nov 12, 2026.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Nov 12, 2026.