# Allegrow review (2026): is it worth $99 a month? > B2B email verification with catch-all results and mailbox health Checked Nov 12, 2026 ยท graded Nov 12, 2026 by ToolGPA. 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. - **Category:** Email Verification & Deliverability - **Made by:** Allegrow - **Website:** https://www.allegrow.co - **Runs on:** Web - **Who should skip it:** Pricey if you are one person: Starter is $99 a month for 5,000 contacts. - **Facts last checked:** Nov 12, 2026 ## 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. - **Pricing model:** Free trial - **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 | $99 per 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 | $1,340 per 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 https://www.allegrow.co/plans on Nov 12, 2026. Prices change, so confirm with Allegrow before buying. ## 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. ## Good for - Outbound sales teams with many catch-all addresses - RevOps teams cleaning CRM data before sequences - Data builders who embed verification in their own product ## 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. ## ToolGPA grades **GPA: 2.0 out of 4**, graded Nov 12, 2026. 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. - **Value for money: D.** Starter 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. - **Free plan and trial: C.** 14-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. - **Features: C.** Catch-all verification, risk flags, domain health and DNS monitoring. Starter has no native integrations and API access is on request. - **Ease of use: C.** No store rating on record. You upload CSVs and connect a mailbox for domain tracking, so there is some setting up. - **Platforms and integrations: B.** Web, with native HubSpot, Outreach and Salesloft only on the top plan and a Clay link through an API key. These are ToolGPA's own grades. 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. ## Where it 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. The category's chart of price against score: https://toolgpa.com/charts/email-deliverability ## Keep it, 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. - You could not: A network of real inboxes that open and answer your emails. - You could not: Checking that an address exists without writing to it. - You could not: Reading the reports inbox providers send about your domain. A judgement by ToolGPA from this listing, by rules that are the same for every tool. Nothing was built to test it. ## Works with HubSpot, Outreach, Salesloft, Clay **Tags:** Email verification, Inbox warm-up, DMARC ## Alternatives - [ZeroBounce](https://toolgpa.com/tools/zerobounce): Email list verification with warm-up and DMARC monitoring in one plan. [Compare](https://toolgpa.com/compare/allegrow-vs-zerobounce) - [Bouncer](https://toolgpa.com/tools/bouncer): Email list verification with credits that never expire. [Compare](https://toolgpa.com/compare/allegrow-vs-bouncer) - [NeverBounce](https://toolgpa.com/tools/neverbounce): Email list cleaning and real-time verification, now part of ZoomInfo. [Compare](https://toolgpa.com/compare/allegrow-vs-neverbounce) - [Kickbox](https://toolgpa.com/tools/kickbox): Pay-as-you-go email verification with an optional threat score. [Compare](https://toolgpa.com/compare/allegrow-vs-kickbox) - [MailReach](https://toolgpa.com/tools/mailreach): Email warm-up and inbox placement tests, priced per mailbox. [Compare](https://toolgpa.com/compare/allegrow-vs-mailreach) ## Sources The prices, plans, platforms and features above were read from these pages on Nov 12, 2026: - https://www.allegrow.co/plans Page: https://toolgpa.com/tools/allegrow Listed by ToolGPA (toolgpa.com).