Build vs. buy calculator for presales software
Your internal tool is free. Until you add it up.
Every presales leader has thought about building their own. Before you pull engineers off the roadmap, price out the build, the security reviews and the maintenance nobody budgets for.
Building it
A real presales platform is not a spreadsheet with a login. Engagements, discovery, demo planning, POCs, CRM and calendar sync, call ingestion, reporting: every piece is its own project.
Securing it
The moment it holds customer call notes and deal data, it needs the same scrutiny as any production system: access controls, vulnerability scanning, penetration testing and a security review every year.
Running it, forever
This is the line item that sinks internal tools. Integrations break when vendors change their APIs, dependencies need patching, and every leader wants one more field. Most teams underestimate it badly.
The real cost of building it
$0
To build, secure and run it for three years
$0
Year one
$0
Every year after
$0
Per user, per year
0
Before your team gets anything
Where the money goes over three years
- Building it
- $0
- Maintaining it
- $0
- Securing it
- $0
- Leader time as product owner
- $0
- Hosting, tooling & AI
- $0
PresalesIQ is in production today. Put a quote next to your per-user number and the decision makes itself.
Illustrative estimate based on your inputs. Maintenance starts once the first version ships; security, hosting and product-owner time run from day one. Leader time uses a 46-week year and a 2,080-hour cost basis.
Get a PresalesIQ quote to compareShipping it is the easy part. Owning it is forever.
The APIs change under you
Salesforce, HubSpot, Gong and your calendar provider all ship API changes on their schedule, not yours. Every one is a fire drill for a tool with no dedicated team.
Security never ends
Patches, dependency upgrades, access reviews, the annual pen test, the questionnaire from your own security team. A tool holding deal data never gets to be done.
The backlog only grows
Once the team relies on it, every leader wants one more field, one more report, one more integration. The tool that was a side project becomes somebody's full-time job.
The builder leaves
Internal tools are usually understood by one person. When they move on, you inherit an app nobody wants to touch and a team that depends on it.
Every company has one. The spreadsheet Gary built in 2013, a year before he left. The homegrown CRM Elise built in 2015, six years before she left.
Nobody can upgrade them. Nobody can replace them. Everybody still depends on them. Today's internal presales tool is tomorrow's Gary spreadsheet.
Everything your build would take years to reach.
Internal tools start as an activity tracker and stall there. PresalesIQ is the full command center for presales, built and maintained by a company that does nothing else.
Take the product tour- AI that turns every customer call into structured discovery
- Engagements, activities and demo planning in one workspace
- POCs with users, use cases, success criteria and milestones
- Product gap capture tied to real deals
- Salesforce, HubSpot, Gong, Google and Microsoft calendars, Jira and Slack, all kept current
- Bring-your-own-AI: runs on the AI provider you've already approved
- Continuous releases and upkeep handled for you, so your engineers never have to
Already convinced it's worth buying? See what it gives back to your team →
Build vs. buy questions, answered
Is it cheaper to build or buy presales software?
Building looks cheaper because the first version comes fast. The bill shows up after launch: engineers patching integrations, annual security reviews, and a presales leader acting as product owner. Over three years, an internal tool usually costs far more than a purpose-built platform. Use the calculator above to see your own number.
How much does it cost to build an internal presales tool?
With this calculator's default inputs (20 users, two engineers, six months to a first version, half an engineer on upkeep after launch), the three-year total comes to about $634,000. That works out to roughly $10,600 per user, per year. Adjust the sliders to match your team.
What hidden costs do internal presales tools have?
Four costs get left out of most business cases: integration upkeep when Salesforce, HubSpot, Gong or your calendar provider change their APIs; security work like patching, access reviews and penetration tests; a backlog that grows once the team relies on the tool; and the risk that the one person who understands it moves on.
Does AI make it cheaper to build your own presales tool?
AI coding tools get you to a first version faster. Maintenance, security and integration upkeep still land on your team every year after launch, and that is where most of the three-year cost sits.
How does the build vs. buy calculator work?
It adds up total cost of ownership over three years in five buckets: building the first version, maintaining it after launch, security testing, hosting and AI usage, and the time a presales leader spends as its product owner. Maintenance starts when the first version ships. Everything else runs from day one.
Want the full story? Read why presales teams keep building their own tools →
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