The starter sales stack
For founders running their first outbound by hand, on a budget that notices.
The cheapest honest way to start selling. A prospecting tool whose free tier hands you real contact data and basic sequencing, a general assistant to research each prospect and write outreach that does not read like a template, and a free-tier CRM logging email and calendar activity so the record keeps itself. It will not scale to a team, but it takes a founder from a blank list to sent emails without a subscription stack.
The stack, step by step
- 01
Apollo.io
Find and reach: contact data and basic sequencing on a free tier, enough to run first outbound by hand.
Swap options- Instantly when cold email is the whole motion and sending volume with warmup discipline matters more than an all-in-one platform, accepting that the move gives up Apollo's free tier See the comparison
Apollo's free tier supplies the contact data and basic sequencing; ChatGPT supplies the words, researching each prospect and drafting outreach that does not read like a template. The list comes from one tool and the reason to reply comes from the other.
- 02
ChatGPT
Research and write: dig into a prospect, draft the email, tailor the follow-ups.
Swap options- Claude when prospect research runs on longer source material and the outreach needs a more careful written register See the comparison
- Google Gemini when the founder already works in Gmail and wants research and drafting beside the inbox See the comparison
Outreach only compounds if what happened gets recorded, and Attio logs email and calendar activity automatically on a free three-seat plan. The founder sells while the record keeps itself, which is the only version of CRM discipline a one-person motion actually sustains.
- 03
Attio
Keep the record: a free three-seat CRM logging email and calendar activity automatically.
Swap options- HubSpot AI (Breeze) when the plan is to grow marketing, sales and service on one platform with CRM-grounded AI from the start See the comparison
What it costs
Free tiers carry the early work, and the step up to paid stays at solo-operator prices. Deliberately the cheap entry point, upgraded only when volume demands it.
| Tool | Entry tier | What drives cost up |
|---|---|---|
| Apollo.io | Freemium (Free tier + paid plans)from $49 | Free tier for light prospecting; paid plans per user per month with credit allowances for contact data and sequencing. |
| ChatGPT | Freemium (Free tier + paid plans)from $8 | Plus for individuals; Business per seat, or Enterprise (custom). |
| Attio | Freemium (Free tier + paid plans)from $35 | Attio is freemium with a usable floor: the free plan carries up to three seats with real-time contact syncing, automatic enrichment and the AI agents themselves, enough for a founding team's system of record. Usage is metered by a two-pool credit system, seat credits per user and shared workspace credits that refill monthly and scale by tier, rather than by switching features on or off, so the agents are available on every plan within their credit allowance. Free-plan workspace credits cannot be topped up, so the practical question on the free plan is how far the monthly credits stretch, not whether the agentic product is present. |
Compare the members
Written comparisons between these tools and their nearest substitutes.
Built for
The three tiers of this stack
Ready · this stack
The starter sales stack
For founders running their first outbound by hand, on a budget that notices.
Competitive
The professional sales stack
For a small sales team running a repeatable outbound motion.
World-Class
The revenue engine stack
For a scaled revenue org industrialising go-to-market.
Common questions
What does this stack actually cost per month?
All three tools here have a genuine free tier, so a working configuration costs nothing while you evaluate it. The 03 COSTS table above breaks down each tool's pricing. Three meters climb with use: Apollo's credit allowances for contact data and sequencing, ChatGPT's message and file caps, and the seats across the roster as the founding team grows. Apollo's credits tend to bite first as the list expands, which is a sign the outbound is working. Each upgrade is an independent decision, not a bundle.
Do I need all three tools from day one?
Rarely. Apollo and ChatGPT are the core: Apollo's free tier hands you contact-data credits and sequencing, ChatGPT researches each prospect and writes outreach worth answering, and together they send the first email. The numbered steps are workflow order, find then write then record, not a buying sequence. Connect Attio to your email and calendar early anyway: it logs activity passively, and back-filling deal history by hand later is the tax you avoid.
I already use ChatGPT. What changes?
Then you already own the writing half. ChatGPT researches each prospect and drafts outreach that does not read like a template, and your subscription covers that. What it cannot do is find people or remember them. Apollo supplies contact data and sequencing tools to reach a list you lack; Attio logs email and calendar activity so the deal history keeps itself. Add the list and the memory around writing you already trust.
Where do these tools overlap, and which wins?
Apollo and ChatGPT both touch the outreach message, the one real overlap here. The dividing rule is who the email is for. ChatGPT wins when the message is researched and written for a single named prospect: the personalised opener, the follow-up that references something specific. Apollo's built-in sequencing wins when the same message goes to a whole segment, where send mechanics matter more than a bespoke line.
When do I outgrow this stack?
Two signals, both scope not price. The first is more than the founder selling: once outbound is a team sport, you need shared lists and sequences a free CRM floor and hand-sent emails cannot coordinate. The second is volume outgrowing manual work: when reaching the list needs multichannel cadences and deliverability tooling, not a founder sending by hand, the motion breaks. Both point to the competitive tier, the professional sales stack.
What can I safely put into these tools?
Keep confidential material off ChatGPT until it is on a business or enterprise tier: consumer plans may train on your inputs unless you opt out, so customer lists, deal terms and credentials stay out. Attio's auto-enrichment and activity logging are personal-data processing: settle your lawful basis and scope which mailboxes connect before switching them on. Where its call intelligence records a call, telling everyone on the line is your obligation.
Before sharing confidential or personal data, check this tool's data-governance and training policies. They differ between providers and can change.
Last checked: August 2026
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Tool facts last checked August 2026