Software Alternatives, Accelerators & Startups

Hunter.io VS Groundbase

Compare Hunter.io VS Groundbase and see what are their differences

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Hunter.io logo Hunter.io

Find all the email addresses related to a domain

Groundbase logo Groundbase

BYO Twilio. BYO Resend. $9/mo flat โ€” no per-seat, no markup on your texts, no surprise bills. CRM, bulk SMS, email campaigns, automations, MCP. For solo founders, indie operators, and small agencies.
  • Hunter.io Landing page
    Landing page //
    2023-09-20
  • Groundbase Dashboard Overview
    Dashboard Overview //
    2026-08-02
  • Groundbase Drag-and-drop deal pipeline
    Drag-and-drop deal pipeline //
    2026-08-02
  • Groundbase SMS conversations through your own Twilio number
    SMS conversations through your own Twilio number //
    2026-08-02
  • Groundbase Contact record with custom fields and activity timeline
    Contact record with custom fields and activity timeline //
    2026-08-02
  • Groundbase Email and SMS campaigns
    Email and SMS campaigns //
    2026-08-02
  • Groundbase Built-in softphone
    Built-in softphone //
    2026-08-02
  • Groundbase Android app
    Android app //
    2026-08-02

Groundbase is a CRM built for technical solo operators โ€” solo founders, indie hackers, freelance developers, and agencies of one.

Flat $9/month. No per-seat pricing, no tiers, no upsells, no "contact sales."

BYO infrastructure

You connect your own Twilio account for SMS and voice, and your own Resend account for email. Your cost per message is whatever those providers charge you โ€” Groundbase takes no markup and doesn't sit between you and your vendors. A CRM that resells you SMS at 5x cost is a CRM with a conflict of interest.

MCP-native

Groundbase ships a Model Context Protocol server. Claude, Cursor, or any MCP client can read and act on your CRM data directly โ€” list contacts, create deals, send SMS, build workflows, all from your AI assistant. Most CRMs bolt a chat sidebar onto their UI. Groundbase exposes the data and lets you bring your own model.

What's included

Contacts and companies ยท Deal pipeline with drag-and-drop kanban ยท Tasks and calendar ยท Bulk SMS ยท Softphone and voicemail drops ยท Email campaigns with drip sequences and A/B testing ยท Multi-step cadences ยท Automations, workflows, and webhooks ยท Custom fields and saved views ยท CSV import/export ยท Google Calendar sync ยท Public booking pages

Available on web, Windows desktop, and Android.

Who it isn't for

Enterprise sales teams. There's no SSO, no lead routing, no approval workflows, and no SOC 2. If you have SDRs and a RevOps person, use HubSpot or Salesforce โ€” they're better at that job.

Built and maintained by one person.

Hunter.io

Website
hunter.io
$ Details
-
Platforms
-
Release Date
-
Startup details
Country
France

Groundbase

$ Details
paid Free Trial $9 / Monthly (Flat rate โ€” all features included)
Platforms
Web Windows Android
Release Date
2026 June
Startup details
Country
Canada
State
Ontario
Founder(s)
Adam Rao
Employees
1 - 9

Hunter.io features and specs

  • Large Database
    Hunter.io offers access to a substantial database of professional emails from a variety of domains, making it easier to find contact information.
  • Accuracy
    The service provides a high degree of accuracy by verifying email addresses in real-time, which reduces the chances of bounce backs.
  • Ease of Use
    The interface is user-friendly and intuitive, enabling even non-technical users to quickly find and verify email addresses.
  • API Integration
    Hunter.io provides robust API integration, allowing developers to incorporate its functionality into their own applications seamlessly.
  • GDPR Compliance
    The service adheres to GDPR regulations, ensuring that user data is handled in a privacy-compliant manner.
  • Chrome Extension
    Hunter.io offers a Chrome extension that enables users to find email addresses directly from their browser while visiting websites.

Groundbase features and specs

  • Web-Based Platform
    Works in any modern browser at app.groundbasecrm.com
  • Android App
    Direct .apk download, near-full feature parity with desktop
  • Windows
    Native desktop app (.exe installer)
  • BYO Twilio
    Connect your own Twilio account. No markup on SMS or voice โ€” you pay Twilio's published rates directly.
  • BYO Resend
    Connect your own Resend account for email. No platform markup, no imposed sending limits.
  • MCP Server
    Model Context Protocol server โ€” Claude, Chatgpt, or any MCP client can read and act on your CRM data.
  • Flat Pricing
    $9/month. No per-seat, no tiers, no usage-based billing.
  • Deal Pipeline
    Drag-and-drop kanban board with custom stages.
  • Bulk SMS
    Send to filtered contact lists through your own Twilio number.
  • Email & SMS Campaigns
    Drip sequences, A/B testing, and analytics pulled from your own Resend account.
  • Cadences
    Multi-step outreach sequences mixing SMS, email, tasks, and tags.
  • Automations & Webhooks
    Trigger-based workflows plus inbound and outbound webhooks.
  • Softphone
    In-browser calling and voicemail drops via Twilio Voice.
  • Custom Fields
    Unlimited custom fields on contacts, companies, and deals.
  • Google Calendar Sync
    Two-way sync plus public booking pages.

Analysis of Hunter.io

Overall verdict

  • Hunter.io is generally considered a good tool for professionals who need reliable email search and verification services. Its wide range of features, ease of use, and reliable data make it a valuable resource for many users. However, as with any tool, it is important to assess your specific needs and evaluate whether its offerings align with your objectives.

Why this product is good

  • Hunter.io is a popular tool that is primarily used for finding and verifying professional email addresses. It is well-regarded for its accuracy and depth of data, offering users a vast database to search from. Hunter.io is particularly beneficial for salespeople, marketers, and recruiters who need to connect with potential clients, partners, or candidates efficiently. The platform provides features such as domain search, email verification, lead generation, and integrations with other CRM tools, which make it versatile and user-friendly.

Recommended for

  • Sales professionals looking to generate leads and connect with potential clients
  • Marketing teams aiming to reach out to prospective customers or partners
  • Recruiters and HR professionals seeking to verify or find candidate contact information
  • Entrepreneurs and business development specialists needing to expand their network

Hunter.io videos

GTA Hunter Review

More videos:

  • Review - FH-1 Hunter review! - GTA Online guides
  • Review - Hunters Review - Spoiler-Free
  • Tutorial - Find email addresses in seconds โ€ข Hunter (Email Hunter) - mail tracker.hunter.io | hunter.io review

Groundbase videos

No Groundbase videos yet. You could help us improve this page by suggesting one.

Add video

Category Popularity

0-100% (relative to Hunter.io and Groundbase)
Lead Generation
100 100%
0% 0
MCP Servers
0 0%
100% 100
Email Marketing
100 100%
0% 0
CRM
0 0%
100% 100

Questions & Answers

As answered by people managing Hunter.io and Groundbase.

What makes your product unique?

Groundbase's answer:

Two things.

First, BYO infrastructure. You connect your own Twilio account and your own Resend account. Your cost per SMS is whatever Twilio bills you, on an invoice with your name on it. I don't mark it up and I don't sit between you and your vendors. Most CRMs that offer SMS set their own rate, and you have no way to audit it.

Second, it has an MCP server. Claude, Cursor, or any MCP client can read your contacts, create deals, send SMS, and build workflows using your real data. I didn't bolt a chat sidebar onto the UI. I exposed the data and let you bring whatever AI you already pay for.

Also $9 a month, flat. One plan. No per-seat, no tiers, nothing gated behind an upgrade.

How would you describe the primary audience of your product?

Groundbase's answer:

Technical solo operators. Solo founders, indie hackers, freelance developers, agencies of one.

Concretely: someone who reads "bring your own Twilio account" and thinks "good, I want control" instead of "ugh, more setup." Someone who already knows what an API key is and where to find it. Someone who'd rather assemble a few sharp tools than buy one bundled platform that's mediocre at everything.

If "Twilio account SID" makes you nauseous, this isn't the right tool and I'd rather say so now. Zoho Bigin or HubSpot's free tier will treat you better.

What's the story behind your product?

Groundbase's answer:

I built the CRM I wanted and couldn't find. Everything out there either assumed I had a sales team I don't have, or was the cheap entry tier of someone else's upsell funnel.

The part worth telling is what I removed. Groundbase originally had a credits system. Customers topped up a wallet, sent SMS through my master Twilio account, and I marked up the rate. That was supposed to be platform revenue.

I killed it. A few reasons: A2P 10DLC compliance for a multi-tenant setup is brutal for one person, every credits system generates "where did my $10 go" support emails, and refund accounting on partial balances is miserable.

But the real reason was simpler. I built this to get away from platforms that mark up Twilio, and there I was marking up Twilio. So customers connect their own account now. I lost the markup revenue and got back a product I'd actually buy.

Which are the primary technologies used for building your product?

Groundbase's answer:

Cloudflare Workers for the backend and API. Turso (libSQL) for the database. Stripe for billing. Twilio for SMS and voice, though that runs on the customer's own account, not mine. Resend for email, same arrangement.

The web app is React on Vite. Desktop is Electron with a local SQLite store. Mobile is React Native. The MCP server is a separate Worker speaking Streamable HTTP.

No framework on the backend, just TypeScript and the Workers runtime. The marketing site runs on Vercel. Everything else, the API, the app, and the MCP server, is on Cloudflare Workers, mostly for the cost curve. At $9 a month with thin margins, a bandwidth bill that scales on multiple axes is a real problem.

Why should a person choose your product over its competitors?

Groundbase's answer:

Depends who you are, and for a lot of people the honest answer is you shouldn't.

If you run a sales team, use HubSpot or Close. They're built for that and I'm not. No lead routing, no approval workflows, no SSO, no SOC 2.

If you're one person, the math changes, because the tier where the useful things live is never the cheap one. HubSpot Sales Hub Professional, where sequences and real automation sit, is $90 per seat per month on annual billing plus a required one-time $1,500 onboarding fee. Close Growth, the tier that unlocks the Power Dialer, is $99 per seat per month annually. Groundbase is $9, one plan, nothing gated behind an upgrade.

Then there's messaging cost. With bundled telephony you pay whatever rate the platform sets and you have no way to audit it. With Groundbase you connect your own Twilio account and the bill arrives with your name on it.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Hunter.io and Groundbase

Hunter.io Reviews

  1. Eleanor Bennett
    ยท Digital Marketing Specialist at Logit.io ยท
    Brilliant for outreach

    I often use the Hunter Google Chrome extension to assist me in discovering the contact details of new outreach targets. The only drawback is that I quite often exceed my free monthly allowance of lead requests.


21 Best Lead Generation Software for 2024
Hunter.io is an ideal outreach tool for finding and verifying prospectsโ€™ email addresses for outbound lead-generation campaigns.
Source: www.sender.net
Top 15+ Apollo.io Competitors & Alternatives [2024]
If email addresses are important to you, it could be worth considering Apollo.io competitors like Hunter. With Hunter, you can find and outreach to prospects by email.
Source: www.kaspr.io
15 Best Apollo.io Alternatives to Find Verified B2B Leads (2024)
Gathers and Confirms Contact Details โ€“ Hunter.io uses advanced artificial intelligence to help you find, verify, and enhance the contact information for your potential customers or leads. This ensures you have accurate and up-to-date details like email addresses and phone numbers.
The Ultimate List of Best ZoomInfo Alternatives to get B2B Contacts and fill up the top of your Sales Pipeline
Hunter is one of the best and well-known email finders in the market. The process is quite simple, where you just enter the website domain of the company you want to target, and Hunter scrapes and gives you the list of all the available emails in this domain with the name, job title, department, etc.
112 Best Chrome Extensions You Should Try (2021 List)
It is easy to send mass emails to hundreds of people. But, finding those emails is a bothersome task. Visiting contact pages of websites and locating email addresses is rough. I do not fancy doing such unproductive work. Instead, I use Hunter to find contact information of any domain. It shows titles, social networks, and phone numbers to contact the admin. You should use...

Groundbase Reviews

We have no reviews of Groundbase yet.
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Social recommendations and mentions

Based on our record, Hunter.io seems to be more popular. It has been mentiond 155 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Hunter.io mentions (155)

View more

Groundbase mentions (0)

We have not tracked any mentions of Groundbase yet. Tracking of Groundbase recommendations started around Aug 2026.

What are some alternatives?

When comparing Hunter.io and Groundbase, you can also consider the following products

Apollo.io - Apolloโ€™s predictive prospecting, sales engagement, and actionable analytics help the teams to reach its full revenue potential.

Attio - Attio is a radically new type of CRM that is real-time, entirely customizable and intuitively collaborative. Using Attio, your team can create, build and deploy your CRM exactly as you want it.

Snov.io - Snov.io is a multichannel lead generation and outreach automation platform that helps B2B teams find qualified leads, automate email and LinkedIn campaigns, and manage deals in one built-in CRM.

Salesflare - Simply powerful CRM. Automates your data to build better relationships and make more sales.

Lusha - Search less. Sell more.

OnePageCRM - OnePageCRM is a powerful contact management system for small businesses. With this CRM, you can easily focus on what needs to be done next, follow up with every lead and client, keep the team on the same page, and close more deals.