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FlowCrypt VS InboxAgent

Compare FlowCrypt VS InboxAgent and see what are their differences

FlowCrypt

FlowCrypt (formerly CryptUp) is the easiest PGP encryption for Gmail. It behaves just like standard email, except it's encrypted.

Rating
0 reviews
Alternatives Is it good?
InboxAgent

InboxAgent uses AI to read your shared mailboxes, like info@ and sales@, plus everyone's own inbox, on Microsoft 365, Gmail, Zoho Mail or IMAP. It finds the sales leads and gives each an owner on a board. Never sends from your mailbox.

Rating
5.0 · 1 review
Pricing
Paid Free trial $20 / Monthly
Alternatives Is it good?
Taverlo
Check your business domain’s public DMARC and SPF records free. Ongoing monitoring is free for one domain; $29/month covers up to five. sponsored

Which is more popular?

Based on our record, FlowCrypt seems to be more popular. It has been mentioned 1 time since March 2021.

social mentions
1 vs 0
Email popularity
100% vs 0%
alternatives listed
50 vs 10

Base details

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

FlowCrypt
InboxAgent
Website flowcrypt.com goinboxagent.com
Pricing
Official pricing
Paid Free trial $20 / Monthly Official pricing
Platforms —
GMail M365 Zoho Hubspot +1
Listed in
Content Marketing Email Native Ads Productivity +1
Email Productivity Team Inbox Lead Management Small Business CRM Productivity Sales Email Management Leads +5

About FlowCrypt and InboxAgent

In their own words, as submitted to SaaSHub.

FlowCrypt
InboxAgent

No description of FlowCrypt yet.

Leads arrive at info@, at sales@, and in each salesperson's own inbox, mixed in with client questions, invoices and noise. On a busy day some are never answered, and you are the one answerable when a real lead goes quiet. InboxAgent watches the mailboxes you already have, on Microsoft 365, Gmail,...

Read more about InboxAgent

Features and specs

What each product offers, as listed by its team.

FlowCrypt 5 features
InboxAgent 11 features
  • End-to-End Encryption
    FlowCrypt provides robust end-to-end encryption for emails, ensuring that only the intended recipient can read the message.
  • User-Friendly Interface
    The extension integrates seamlessly with Gmail and other major email providers, offering a straightforward user experience.
  • Open Source
    FlowCrypt's core technology is open source, allowing the community to audit and improve the codebase, ensuring transparency and trust.
  • Cross-Platform Support
    Available for Chrome, Firefox, iOS, and Android, FlowCrypt allows users to encrypt their communications across multiple devices.
  • Free and Premium Versions
    FlowCrypt offers a free version with essential features, as well as a premium version with advanced functionalities for professional use.

Possible disadvantages

  • Dependency on PGP
    The service relies on PGP for encryption, which may not be the most user-friendly solution for non-technical users unfamiliar with cryptographic concepts.
  • Limited Provider Support
    While integrating well with Gmail, FlowCrypt's compatibility with other email providers might not be as seamless or feature-rich.
  • Potential Learning Curve
    Users unfamiliar with encryption technologies might face an initial learning curve to fully understand how to use FlowCrypt's services.
  • Premium Features are Paid
    Advanced features necessary for professional use require a paid subscription, which may be a drawback for users seeking completely free solutions.
  • Mobile App Limitations
    The mobile versions might not have full feature parity with the desktop extensions, potentially limiting functionality on-the-go.
  • Triage-based inbox system
    Every email is sorted into one of three things: a sales lead, something else that needs a person, or noise. Leads land on a Leads board and everything else on Follow-ups, each with an owner and a stage. Read-only throughout, nothing is moved.
  • AI Classification
    AI works out what each email is once the rules have cleared the obvious noise. Anything it is not confident about is marked Needs review and waits for a person. Your team's corrections stick and become rules and sender signals you can see.
  • Pricing Model
    $20 a month for your whole organization, including the first mailbox. $5 for each additional mailbox. Users are free, no per-seat charge and no overage. 7-day free trial.
  • Noise Filtering
    Newsletters, bulk mail, known marketing senders and auto-replies are caught by rules you control and set aside before the AI is ever called. Every decision is recorded so you can see what was filtered and why.
  • Gmail Integration
    Reads Gmail and Google Workspace mailboxes, shared and individual, read-only and Google-verified. Each person authorizes their own. Nothing is moved and your team keeps working in Gmail.
  • Outlook Integration
    Reads Microsoft 365 mailboxes, including shared mailboxes like info@ and sales@, read-only. Each person authorizes their own. Nothing is moved and your team keeps working in Outlook.
  • zoho crm
    Sales inquiries become leads in your Zoho CRM as they arrive, matched to an existing record where there is one rather than creating a duplicate. Zoho Desk is supported alongside it for service requests.
  • HubSpot Integration
    Sales inquiries flow into HubSpot as contacts and deals, matched against existing records. Works on HubSpot's free tier, so there is nothing extra to buy.
  • IMAP Support
    Connects to any standard IMAP mailbox, not just the major providers. Read-only, with the same Leads and Follow-ups boards as everywhere else. Four mailbox types in total: Microsoft 365, Gmail, Zoho Mail and IMAP.
  • Follow-up Automation
    Anything that needs a person and is not a sales lead is detected and placed on the Follow-ups board with an owner, and stays open until it is marked done. Invoices, renewals, contracts, supplier requests, legal notices. The automation is in the finding and the routing. InboxAgent never sends email on your behalf.
  • Read-Only Access
    Read-only access to every connected mailbox. InboxAgent does not move, migrate, archive or delete anything. Two-factor authentication, role-based per-mailbox access, CASA security assessment completed.

Videos

Walkthroughs and reviews on video.

FlowCrypt 1 video + Add
InboxAgent 1 video + Add

Flowcrypt PGP 10 15 2017

InboxAgent: never miss a lead in your business inbox

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
FlowCrypt
InboxAgent
100% 100%
Email
0% 0%
61% 61%
Productivity
39% 39%
0% 0%
Sales
100% 100%
100% 100%
Native Ads
0% 0%

Questions & Answers

As answered by people managing FlowCrypt and InboxAgent.

What makes your product unique?

InboxAgent's answer:

It is read-only. InboxAgent reads the mailboxes you already have and never sends mail from them, never moves a message, and never files or deletes anything. Most tools in this category work by forwarding your mail into their own system, after which your own mailbox stops being the record of what arrived. Nothing here changes your mailbox.

For Microsoft 365, Gmail and Zoho Mail that is enforced by those providers rather than promised by us. The permissions we request are read-only, so you can check it on the consent screen before you click Allow.

Why should a person choose your product over its competitors?

InboxAgent's answer:

  • Nothing to migrate and no new app for your team to adopt. They keep working in Outlook or Gmail exactly as before.
  • Priced per organization, not per seat. $20 a month including your first mailbox, $5 for each additional mailbox, unlimited users.
  • It covers shared addresses like info@ and sales@ as well as everyone's own inbox, on Microsoft 365, Gmail, Zoho Mail or any IMAP mailbox.
  • A salesperson can act on a lead without being given the mailbox, which usually also holds bank correspondence and password resets.
  • It works with or without a CRM. If you use Zoho CRM, Zoho Desk or HubSpot, leads flow there as well.

How would you describe the primary audience of your product?

InboxAgent's answer:

Businesses whose sales inquiries arrive by email, at shared addresses like info@ and sales@ as well as in individual inboxes. Typically service businesses that sell by email: agencies, professional services, trades and field service, suppliers and distributors.

It fits particularly well where email is the main source of leads and there is no proper place to manage them. Every lead lands on a board with an owner and the original email attached, moves through stages you name yourself, carries up to ten fields of your own, and can be exported to CSV at any time.

What's the story behind your product?

InboxAgent's answer:

Sales inquiries arrive in the same mailbox as invoices, supplier mail and noise. Everyone can see them and nobody owns them, so on a busy day some are never answered, and the business often finds out only when a customer goes elsewhere.

InboxAgent exists to answer one question about that mailbox: who owns this email, and has anyone actually dealt with it.

Which are the primary technologies used for building your product?

InboxAgent's answer:

.NET on Microsoft Azure App Service. Microsoft Graph, the Gmail API, the Zoho Mail API and IMAP for mailbox access, all with read-only permissions. OpenAI for classification.

User comments

Share your experience with using FlowCrypt and InboxAgent. 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.

FlowCrypt no reviews yet
InboxAgent 5.0 · 1 review

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

  • Sales leads sorted
    SaaSHub review
    · Sep 2026

    My emails are organized now. I dont have to scroll through emails. nice delegate agent I would say.

Social recommendations and mentions

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

FlowCrypt 1 mention
InboxAgent 0 mentions
  • Flowcrypt for encrypted emails: thoughts?
    I was looking for ways to encrypted Gmail emails (I know, go look for another service...) and found this add-on: https://flowcrypt.com/. Source: almost 5 years ago

Tracking InboxAgent since Sep 2026.

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