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Customer Support · head to head

Missive vs Really Simple Systems

Missive logo

Missive

Customer Support

Team inbox and chat for productive teams

From
Free
Free plan
Yes
Full reviewWebsite
R

Really Simple Systems

CRM

Easy CRM for small businesses

From
$15/month
Free plan
No
Full reviewWebsite

The short version

  • Only Missive has a free tier, so it costs nothing to try first.
  • Each has a real cost: Missive each plan caps users rather than only pricing them, at 5 on Starter and 50 on Productive; Really Simple Systems the vendor's own pricing page as captured by the Internet Archive on 22 October 2019 listed four CRM tiers billed annually: Free at $0 for up to 2 users, Starter at $14 per user per month, Professional at $30 per user per month, and Enterprise at $46 per user per month (each roughly 7 to 10 percent higher if billed monthly); the Marketing add-on was $22 per month for up to 5,000 emails and Advanced Marketing scaled to 50,000 emails per month, though this capture is over five years old
  • They diverge on capability: Missive covers Shared inbox, Really Simple Systems covers Contact management.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Missive and Really Simple Systems actually diverge.

Attributes where Missive and Really Simple Systems differ
AttributeMissiveReally Simple Systems
Starting priceFree$15/month
Free tierYesNo
PlatformsWeb, Ios, Android, Mac, WindowsWeb
CategoryCustomer SupportCRM
Founded20152009

Identical on both: pricing model (subscription), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Missive

  • Shared inbox
  • Team chat
  • Email
  • Tasks
  • Calendar
  • WhatsApp
  • SMS
  • Asana

Only in Really Simple Systems

  • Contact management
  • Sales pipeline
  • Task management
  • Email integration
  • Reporting
  • Google Workspace
  • Cloud deployment
  • English language support

Both cover

  • Zapier
  • GDPR
  • Web support

What people use each for

The jobs each tool is most often brought in to do.

Missive

  • Shared team inbox across email, SMS and social messagesnot Really Simple Systems
  • Collaborating on customer conversations with internal comments and tasksnot Really Simple Systems

Really Simple Systems

  • Sales managementnot Missive
  • Contact trackingnot Missive

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Missive

  • Each plan caps users rather than only pricing them, at 5 on Starter and 50 on Productive
  • Integrations, automation rules and API access all require the Productive plan at $24 per user per month
  • Rules are capped at 1,000 per workspace even on the paid tiers
  • SAML SSO and IP restriction are Business only at $36 per user per month
  • AI features need either Missive AI credits or a bring your own key arrangement rather than being included

Really Simple Systems

  • The vendor's own pricing page as captured by the Internet Archive on 22 October 2019 listed four CRM tiers billed annually: Free at $0 for up to 2 users, Starter at $14 per user per month, Professional at $30 per user per month, and Enterprise at $46 per user per month (each roughly 7 to 10 percent higher if billed monthly); the Marketing add-on was $22 per month for up to 5,000 emails and Advanced Marketing scaled to 50,000 emails per month, though this capture is over five years old

Pricing, plan by plan

Missive

Free
  • FreeFree
    • 3 users
    • Basic features
    • Email & chat
  • Starter$14/month
    • Unlimited users
    • Shared inboxes
    • Rules & automation
  • Productive$18/month
    • Starter + Calendars
    • WhatsApp
    • SMS
  • Business$26/month
    • Productive + API
    • SAML SSO
    • Priority support

Really Simple Systems

$15/month
  • Essential$15/month
    • Contact management
    • Task tracking
  • Professional$25/month
    • Everything in Essential
    • Sales pipeline
    • Reporting
  • Professional Plus$35/month
    • Everything in Professional
    • Advanced customization

Which should you pick?

Choose Missive if

  • You need shared inbox.
  • You want to start without paying.
  • You work on Web, Ios, Android, Mac, Windows.
  • You also want team chat.
Missive review

Choose Really Simple Systems if

  • You need contact management.
  • You also want sales pipeline.
Really Simple Systems review

Questions people ask

Is Missive or Really Simple Systems better?
Neither clearly leads. Missive starts at Free and Really Simple Systems at $15/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Missive or Really Simple Systems?
Missive has a free tier; the other does not. Paid plans start at Free for Missive and $15/month for Really Simple Systems.
Does Missive or Really Simple Systems run on more platforms?
Missive runs on Web, Ios, Android, Mac, Windows. Really Simple Systems runs on Web.
Can I use Missive for free?
Yes. Missive has a free tier, so you can try it without paying. Really Simple Systems starts at $15/month.
What is Missive best used for?
Missive is most often used for shared team inbox across email, sms and social messages, collaborating on customer conversations with internal comments and tasks. Of those, shared team inbox across email, sms and social messages and collaborating on customer conversations with internal comments and tasks are not what Really Simple Systems is typically brought in for.
What can Missive do that Really Simple Systems cannot?
Missive covers Shared inbox, Team chat, Email, Tasks. Really Simple Systems covers Contact management, Sales pipeline, Task management, Email integration. Both handle Zapier, GDPR, Web support.

Answered from the vendors’ own pages

Missive: How much does Missive cost per month?

Missive charges $14/user/month for Starter (up to 5 users), $24/user/month for Productive (up to 50 users), and $36/user/month for Business (unlimited users).

Source
Missive: Is there a free trial available?

Yes, Missive offers a 30-day free trial with no credit card required to start.

Source
Missive: Does Missive offer yearly billing discounts?

Yes, Missive provides a 20% discount for yearly billing compared to monthly pricing on all plans.

Source
Missive: Which plan includes SSO authentication?

The Business Plan at $36/user/month includes SAML SSO, IP restriction, and advanced analytics features.

Source
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