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ProtonMail VS Groundbase

Compare ProtonMail VS Groundbase and see what are their differences

ProtonMail

Secure email with absolutely no compromises. Get your free encrypted email account today.

Rating
5.0 · 2 reviews
Pricing
Freemium Free trial €5 / Monthly (user - 5 GB)
Alternatives Is it good?
Groundbase

A CRM for a business of one. $19 a month flat, every feature included: texting, calling, email campaigns, newsletters, invoicing and an MCP server, sent through your own Twilio and Resend accounts with no markup on messages.

Rating
0 reviews
Pricing
Paid Free trial $19 / Monthly (Flat rate — all features included)
Alternatives Is it good?
LeadExec
AI-powered lead distribution software for lead sellers, ping/post marketplaces, and enterprise teams managing real-time routing, buyer management, compliance, and scalable lead delivery. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, ProtonMail seems to be more popular. It has been mentioned 415 times since March 2021.

social mentions
415 vs 0
Email popularity
100% vs 0%
alternatives listed
240+ vs 28

Base details

Website, pricing, platforms and company facts side by side.

ProtonMail
Groundbase
Website proton.me groundbasecrm.com
Pricing
Freemium Free trial €5 / Monthly (user - 5 GB) Official pricing
Paid Free trial $19 / Monthly (Flat rate — all features included) Official pricing
Platforms —
Web Windows Android
Company Startup from Switzerland · 50 - 99 employees Startup from Canada · 1 - 9 employees · 2026
Listed in
Email Email Service Email Service Provider Email Clients Hosted Email Secure Email +3
CRM MCP Servers Small Business CRM Sales Workflow +1

About ProtonMail and Groundbase

In their own words, as submitted to SaaSHub.

ProtonMail
Groundbase

No description of ProtonMail yet.

Groundbase is a CRM built for one person running their own business: a realtor, a freelancer, a consultant, a tradesperson. It's $19 a month (or $199 a year) with every feature on the one plan. No tiers, no per-seat pricing, no add-ons. What's in it: - Contacts, companies, tags, custom fields and...

Read more about Groundbase

Features and specs

What each product offers, as listed by its team.

ProtonMail 5 features
Groundbase 15 features
  • End-to-End Encryption
    ProtonMail uses robust end-to-end encryption, ensuring that only the sender and the recipient can read the emails. This enhances the security and privacy of your communications.
  • Zero Access to User Data
    ProtonMail does not have access to user data or emails. This means that even ProtonMail cannot read your emails, providing an additional layer of privacy.
  • Swiss Privacy Laws
    Based in Switzerland, ProtonMail benefits from stringent Swiss privacy laws, which are some of the strongest in the world. This offers users greater legal protection against mass surveillance.
  • Open Source
    ProtonMail's encryption algorithms are open source, which means their code can be reviewed and audited by anyone, promoting transparency and trust.
  • User-Friendly Interface
    ProtonMail offers an intuitive and clean user interface, making it easy for users to manage their emails efficiently.

Possible disadvantages

  • Limited Free Storage
    The free version of ProtonMail offers only 500 MB of storage, which might be insufficient for users who need to store a large number of emails.
  • Paid Plans
    Advanced features and additional storage require a paid subscription, which may be a hassle for users looking for a completely free service.
  • Search Limitations
    Due to end-to-end encryption, the search functionality in ProtonMail is limited compared to other email services, as the search can only be performed on email subjects, not the content.
  • Compatibility Issues
    ProtonMail's encryption might not be fully compatible with other email services, potentially causing issues with sending and receiving encrypted messages.
  • Learning Curve
    New users who are unfamiliar with encryption concepts might find it slightly challenging to understand and use all of ProtonMail’s security features effectively.
  • 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 — 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 — Claude, Chatgpt, or any MCP client can read and act on your CRM data.
  • Flat Pricing
    $19/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

An editorial look at what each product does well and who it suits.

ProtonMail
Groundbase

Overall verdict

  • ProtonMail is generally considered to be a good email service, especially for users who prioritize privacy and security. Its user-friendly interface and strong encryption make it a reliable choice for personal and professional communication.

Why this product is good

  • ProtonMail is known for its strong emphasis on privacy and security. It offers end-to-end encryption, ensuring that your emails are secure and can only be read by the intended recipient. Additionally, the service is based in Switzerland, which has strong privacy laws. ProtonMail is also open-source, allowing for transparency and community trust in its security measures.

Recommended for

  • Individuals who prioritize email privacy and security
  • Journalists, activists, and professionals handling sensitive information
  • Users looking for an ad-free email experience
  • Anyone seeking a secure communication tool with a simple, intuitive interface

No analysis of Groundbase yet.

Videos

Walkthroughs and reviews on video.

ProtonMail 3 videos + Add
Groundbase 0 videos + Add

ProtonMail Review - Good or Not?

More videos

  • - ProtonMail Review
  • - Top 4 Email Services BETTER than Protonmail!

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

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
ProtonMail
Groundbase
100% 100%
Email
0% 0%
0% 0%
MCP Servers
100% 100%
100% 100%
Email Clients
0% 0%
0% 0%
CRM
100% 100%

Questions & Answers

As answered by people managing ProtonMail and Groundbase.

Which are the primary technologies used for building your product?

Groundbase's answer:

The API and the MCP server run on Cloudflare Workers, in TypeScript with no backend framework. The database is Turso (libSQL), and billing goes through Stripe. Texts and calls go through Twilio and email through Resend, both on the customer's own accounts, not mine.

The web app is React on Vite, the Windows desktop app is Electron, and the Android app is React Native. All three work from the same cloud data. The MCP server uses Streamable HTTP, and the marketing site is Next.js.

Most of it runs on Cloudflare because of how costs grow. At a flat $19 a month, I can't have a hosting bill that rises with bandwidth on several fronts at once.

Who are some of the biggest customers of your product?

Groundbase's answer:

  • Groundbase is new and deliberately small: it's used by people running a business of one, like realtors, freelancers and consultants. None of them are "big customers", and I don't list anyone without their permission.

What makes your product unique?

Groundbase's answer:

Two things.

First, it sends things itself, through accounts you own. Texts and calls go through your own Twilio number, campaign email through your own Resend account, card payments through your own Stripe account. You pay those companies directly, on invoices with your name on them, and nothing is marked up.

Second, it has an MCP server. Connect Claude, ChatGPT or Cursor and your assistant can actually do the work in your CRM: "text the three people I quoted last week" ends with three texts sent, not a draft for you to copy.

And it's $19 a month, flat. One plan, one person, every feature included. Nothing is held back for a higher tier.

Why should a person choose your product over its competitors?

Groundbase's answer:

Groundbase is built for a business of one, not a sales team scaled down. Most CRMs charge per seat and split the useful parts across tiers and add-ons. Groundbase is one flat price ($19/month or $199/year) with everything included: contacts and deals, tasks and a calendar, invoices and quotes with time tracking, booking links, email and text campaigns, and workflows.

Texting and calling run through your own Twilio account, and campaigns through your own Resend account. You pay those providers directly at their rates, with no markup, and the phone numbers stay yours if you ever leave.

It also works with the AI assistant you already use. Groundbase runs an MCP server with 134 tools, so Claude or ChatGPT can look things up, update records, and draft or send messages in your real account.

It runs on the web, Windows and Android. There's no iOS app yet.

How would you describe the primary audience of your product?

Groundbase's answer:

People running a business of one. A realtor working their sphere, a freelancer, a consultant, a tradesperson, a coach: someone who does their own follow-up and wants the CRM to send the text, the email or the invoice, not just remind them to.

Two things tend to be true of them. They don't want to pay per-seat or team prices for features built for teams, and they're willing to spend fifteen minutes connecting their own Twilio and Resend accounts so they never pay a markup on messages.

It isn't for teams, or for anyone who needs lead routing, permissions or manager reporting. There are better tools for that, and I'd rather say so up front.

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 a sales team I didn'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 texts through my Twilio account, and I marked up the rate. That was supposed to be platform revenue.

I killed it. Texting compliance for many businesses on one account is brutal for one person to manage, every credits system generates "where did my $10 go" emails, and refunding 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.

User comments

Share your experience with using ProtonMail and Groundbase. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

ProtonMail 5.0 · 2 reviews
Groundbase no reviews yet
  • Excellent mail service.
    SaaSHub review
    · Sep 2026

    Great company that is constantly improving their products in meaningful ways.

  • 5 Of The Best Alternatives To Proton Mail
    www.slashgear.com · Jan 2025

    Email providers like Gmail and Yahoo offer lots of great features for free. However, all those freebies come at a cost, as these popular email services track your activity and target you with ads. In contrast,...

  • The Top 4 ProtonMail Alternatives
    blog.superhuman.com · Aug 2024

    While ProtonMail is generally received in a positive light, it isn’t without its flaws. It’s been subjected to DDoS attacks that have made its services inaccessible to some users. ProtonMail is also not well suited to...

View more

We have no reviews of Groundbase yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

ProtonMail 415 mentions
Groundbase 0 mentions
  • Zero-Knowledge Encryption for Small Business Data: Privacy-First Security Solutions
    Proton Mail has established itself as the leading zero-knowledge email provider for business users. Based in Switzerland with its strong privacy laws, Proton offers end-to-end encryption for all emails between Proton users, with optional... - Source: dev.to / 4 months ago
  • Email username
    You might want to consider getting a domain name of your own and then get email hosting which will allow you to set up your email in the way you want. If you don't want to have to manage and pay for domain name and email hosting, you may... Source: almost 3 years ago
  • How to Force Current Session Logout - Answered
    I closed all Proton Mail tabs and navigated to protonmail.com and a cleared out login area was shown. Without checking the "keep me logged in", I entered my credentials and was prompted for my 2FA info. I entered that and it worked. Source: about 3 years ago

View more

Tracking Groundbase since Aug 2026.

Alternatives to ProtonMail and Groundbase

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

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