Most solo operators I talk to are paying $600–900/month in software subscriptions.
They're not getting 3–4x the value. They're paying 3–4x for the same function across tools they added one by one, never audited, and forgot to cancel.
This is the stack that fixes that. Five business functions. One tool each. Total cost: under $200/month.
The 5 Functions Every Business Needs
Every business — regardless of size — needs to do five things:
- Acquire — find and convert clients or customers
- Deliver — fulfill what you promised
- Communicate — stay in contact with clients, leads, audience
- Automate — connect systems and remove manual work
- Track — know what's working and what isn't
Most solo operators have 3–5 tools for each function. That's the problem.
The goal is one tool per function. When that tool can't do something, you add the minimum necessary. Nothing else.
The Stack
Acquire — Beehiiv
$0–$49/monthPaid acquisition is expensive and unpredictable for solo operators. Organic is slow but compounds.
The model: a newsletter that drives leads. Beehiiv handles the newsletter, the landing page, and the subscriber database. Free until 2,500 subscribers. Then $49/month.
Paired with consistent social content (which costs nothing but time), this is a complete acquisition system. No ad spend needed until you're deliberately scaling.
Deliver — Notion
$0–$16/monthDelivery looks different depending on what you sell. But the common need is: documentation, SOPs, client portals, project tracking.
Notion handles all of it. Free plan covers most solo operators. $16/month for the Plus plan if you need unlimited blocks and advanced features.
For service businesses: client portal in Notion, SOP library in Notion, project tracker in Notion. One tool, zero redundancy. For product businesses: product documentation, roadmap, content calendar. Same tool.
Communicate — Gmail + Calendly
$0–$18/monthCommunication means email and scheduling. Both have free tiers that cover 95% of solo operator needs.
Gmail: free. Google Workspace (custom domain email): $6/month. Worth it for the professionalism. Calendly: free tier covers one event type. $12/month for the Essentials plan if you need multiple booking types or integrations.
Automate — Make.com
$9/monthThis is the one tool in the stack that most solo operators don't have — and it's the one that saves the most time.
Make.com connects everything. When a new subscriber joins Beehiiv, Make.com logs it in Notion. When a client books a call via Calendly, Make.com sends a prep email. When you publish a newsletter, Make.com posts to social.
$9/month for the Core plan. 10,000 operations/month. More than enough.
Track — Google Analytics + Sheets
$0You don't need a $200/month analytics dashboard. You need to know: how many new subscribers this week, which content drove the most traffic, what's the revenue this month.
Google Analytics handles the website. A single Google Sheet handles the business metrics. Both are free. Both are enough for the first $10k/month.
The Full Stack and Its Cost
| Function | Tool | Cost/month |
|---|---|---|
| Acquire | Beehiiv | $0–$49 |
| Deliver | Notion | $0–$16 |
| Communicate | Google Workspace + Calendly | $6–$18 |
| Automate | Make.com | $9 |
| Track | Google Analytics + Sheets | $0 |
| Total | $15–$92/month |
That's the minimum viable stack. For a media + content business, add the production tools:
| Tool | Purpose | Cost |
|---|---|---|
| Claude | Writing + strategy | $20 |
| Perplexity | Research | $20 |
| ElevenLabs | AI voice | $5 |
| Descript | Video editing | $12 |
| Buffer | Social scheduling | $6 |
| Full production stack | $78–$155/month |
Still under $200. Still one person. Still a full media and business operation.
The Redundancy Trap
Here's what kills solo operators financially: adding tools without removing anything.
You add Notion, but keep Google Docs. You add Make.com, but keep Zapier. You add Buffer, but keep Hootsuite. Six months later you're paying $600/month and using none of them fully.
The rule: every new tool requires auditing your current stack for overlap. If the new tool covers a function an existing tool handles, the existing tool gets cancelled. No exceptions.
Run this audit quarterly. 30 minutes, once every 3 months. It'll save you $200–400/year.
The Upgrade Path
When revenue allows, here's the order to upgrade:
First $100 of monthly profit
Make.com Core ($9) + Buffer ($6). Automation first — it saves time immediately and compounds.
First $500 of monthly profit
Beehiiv paid tier ($49). You've got enough subscribers that the analytics and monetization features pay for themselves.
First $1,000 of monthly profit
Claude Pro ($20) + Perplexity Pro ($20). Content quality goes up, research speed doubles.
First $2,000 of monthly profit
Consider adding one specialist tool (ElevenLabs for video, Descript for editing). Only if you're producing video content consistently.
Everything else is optional. Don't add tools to feel productive. Add tools when you've hit a specific bottleneck that the tool solves.
The Audit Checklist
Run this now:
- List every active subscription
- Assign each one to a function (acquire / deliver / communicate / automate / track)
- If two tools serve the same function, cancel the more expensive one
- If a tool hasn't been opened in 30 days, cancel it
- Calculate the monthly total — it should be under $200
If it's not under $200, you have redundancy. Find it and cut it.
The goal isn't to spend as little as possible. It's to spend on tools that actually move the business forward. Everything else is overhead.