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Microsoft Dynamics 365 vs Really Simple Systems

Microsoft Dynamics 365 logo

Microsoft Dynamics 365

Proposals

AI-powered business applications for intelligent enterprise

From
$50/month
Rated
-
Full reviewWebsite
R

Really Simple Systems

CRM

Easy CRM for small businesses

From
$15/month
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Microsoft Dynamics 365 business Central Essentials is $80 per user per month and Premium is $110 per user per month, both requiring annual billing to get that rate; 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: Microsoft Dynamics 365 covers Financial management, 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 Microsoft Dynamics 365 and Really Simple Systems actually diverge.

Attributes where Microsoft Dynamics 365 and Really Simple Systems differ
AttributeMicrosoft Dynamics 365Really Simple Systems
Starting price$50/month$15/month
PlatformsCloud, Web, MobileWeb
CategoryProposalsCRM
Founded19752009

Identical on both: pricing model (subscription), free tier (No), 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 Microsoft Dynamics 365

  • Financial management
  • Supply chain
  • Manufacturing
  • Project operations
  • Customer service
  • Microsoft 365
  • Power BI
  • Power Apps

Only in Really Simple Systems

  • Contact management
  • Sales pipeline
  • Task management
  • Email integration
  • Reporting
  • Zapier
  • Google Workspace
  • GDPR

Both cover

  • Web support

What people use each for

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

Microsoft Dynamics 365

  • Enterprise CRM and business applications across Sales, Customer Service, Finance, Supply Chain Management, and Business Centralnot Really Simple Systems

Really Simple Systems

  • Sales managementnot Microsoft Dynamics 365
  • Contact trackingnot Microsoft Dynamics 365

Where each one falls short

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

Microsoft Dynamics 365

  • Business Central Essentials is $80 per user per month and Premium is $110 per user per month, both requiring annual billing to get that rate
  • Sales Order Agent and Payables Agent features require separately purchased Copilot Credits on top of the per-user license
  • Agent features additionally require a linked Azure subscription

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

Microsoft Dynamics 365

$50/month
  • Finance$135/month
    • Financial management
    • Accounting
    • Budgeting
  • Supply Chain Management$165/month
    • Supply chain planning
    • Inventory management
    • Demand forecasting

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 Microsoft Dynamics 365 if

  • You need financial management.
  • You work on Cloud, Web, Mobile.
  • You also want supply chain.
Microsoft Dynamics 365 review

Choose Really Simple Systems if

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

Questions people ask

Is Microsoft Dynamics 365 or Really Simple Systems better?
Neither clearly leads. Microsoft Dynamics 365 starts at $50/month 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, Microsoft Dynamics 365 or Really Simple Systems?
Microsoft Dynamics 365 starts at $50/month and Really Simple Systems at $15/month.
Does Microsoft Dynamics 365 or Really Simple Systems run on more platforms?
Microsoft Dynamics 365 runs on Cloud, Web, Mobile. Really Simple Systems runs on Web.
What is Microsoft Dynamics 365 best used for?
Microsoft Dynamics 365 is most often used for enterprise crm and business applications across sales, customer service, finance, supply chain management, and business central. Of those, enterprise crm and business applications across sales, customer service, finance, supply chain management, and business central is not what Really Simple Systems is typically brought in for.
What can Microsoft Dynamics 365 do that Really Simple Systems cannot?
Microsoft Dynamics 365 covers Financial management, Supply chain, Manufacturing, Project operations. Really Simple Systems covers Contact management, Sales pipeline, Task management, Email integration. Both handle Web support.

Answered from the vendors’ own pages

Microsoft Dynamics 365: What are the pricing options for Microsoft Dynamics 365?

Microsoft does not publish specific pricing on its main Dynamics 365 page. Each application (Sales, Customer Service, Finance, Supply Chain Management, Business Central) has separate pricing that must be obtained by contacting Microsoft sales or visiting application-specific pricing pages.

Source
Microsoft Dynamics 365: Does Dynamics 365 offer a free tier or trial?

No free tier information is published on the main landing page. Customers must contact sales to discuss trial availability or pricing options for their specific use case.

Source
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Related pages

More on Microsoft Dynamics 365

More on Really Simple Systems

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