Stack Building

Best SaaS Stack Under $100/Month: Every Tool Itemized

$100/month buys you a serious software stack with real automation, proper CRM, professional email marketing, and analytics. Every price below comes from verified vendor pricing pages. No guessing, no outdated numbers.

14 min readUpdated March 2026

The $97.59/Month Stack (3 Seats)

CategoryToolPlanPrice/Mo
CRMFreshsalesGrowth (3 seats)$33.00
EmailBrevoStandard$18.00
AutomationMakeCore$10.59
Project ManagementClickUpUnlimited (3 seats)$30.00
AnalyticsPostHogFree (1M events)$0.00
SchedulingCal.comFree$0.00
FormsTallyFree (unlimited)$0.00
Total$91.59/mo

This stack gives you: AI-powered CRM with sequences, marketing automation with A/B testing, 10,000 automation operations/month, unlimited project management with Gantt charts, 1M analytics events, unlimited scheduling, and unlimited forms. All for $91.59/month.

Alternative: Solo Founder Stack at $47.59/Month

If you're a solo founder and don't need 3 CRM or PM seats, the same quality stack costs far less:

CategoryTool & PlanPrice/Mo
CRMFreshsales Growth (1 seat)$11.00
EmailBrevo Starter$9.00
AutomationMake Core$10.59
PMClickUp Unlimited (1 seat)$10.00
AnalyticsPlausible Starter$9.00
Total$49.59/mo

Common Mistakes

  • Starting with HubSpot Starter ($20/seat) instead of Freshsales Growth ($11/seat). HubSpot's Starter plan gives you less functionality at nearly double the per-seat price. The only reason to choose HubSpot Starter is if you plan to invest heavily in the HubSpot ecosystem long-term.
  • Paying for analytics before you need it. PostHog's free tier includes 1M events. Mixpanel's free tier includes 1M events. Most businesses under $100/month in software don't need paid analytics yet.
  • Picking Zapier over Make. Zapier Professional ($29.99/month) gives you 750 tasks. Make Core ($10.59/month) gives you 10,000 operations. That's $19.40/month saved that can go toward other tools.
  • Ignoring annual billing discounts. With annual billing, this stack drops from $91.59/month to approximately $75–80/month, saving $140–200/year.

Frequently Asked Questions

Why Freshsales over Pipedrive for the CRM slot?

Freshsales Growth at $11/seat includes AI contact scoring, sequences, and built-in phone. Pipedrive Lite at $14/seat does not include AI or phone features. For a budget stack, Freshsales delivers more per dollar.

Can I swap Brevo for Mailchimp?

You can, but it costs more. Mailchimp Standard ($20/month for 500 contacts) costs more than Brevo Standard ($18/month for unlimited contacts). Brevo's per-send model is better value for most small businesses.

What about adding a help desk?

Freshdesk Free (2 agents, email ticketing) keeps you under $100. If you need more, Freshdesk Growth at $15/agent/month adds automations and dashboards, pushing a 3-seat stack to about $106/month.

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