We Replaced a $4,600/Year SaaS Tool with Custom AI — Here's How

Every small business has that one SaaS subscription that makes them wince every time the invoice hits. For us, it was our project management tool. Twenty-two users at $17.50 per seat per month. That's $4,620 per year for a kanban board we used maybe 30% of.

We had columns, cards, and drag-and-drop. We also had a thousand features we never touched — Gantt charts nobody opened, automations that fired incorrectly, and an admin panel so complex it needed its own training session. We were paying enterprise prices for sticky notes on a wall.

So we replaced it. Built a custom kanban board from scratch. Then we did the same thing with our email marketing CRM — another bloated platform costing us over $3,000 a year. This article is the honest breakdown of what that looked like, what it cost, and whether we'd recommend it.

The Project Management Replacement: $4,620/Year to $0

What We Were Paying For (and What We Actually Used)

Our project management tool was a well-known platform. Premium tier. Twenty-two seats. Here's the uncomfortable audit we ran before making the switch:

• Features we used daily: Kanban boards, card assignments, due dates, drag-and-drop between columns
• Features we used occasionally: Labels, checklists, card comments
• Features we never used: Timeline view, calendar sync, custom fields, dashboard widgets, power-ups, Butler automations, workspace templates, advanced admin controls

We were paying for a Swiss Army knife when all we needed was a really good blade. The premium tier existed because we'd hit the free tier's limits on automations and board views — features we could have lived without if the alternative was $385/month.

What We Built

The replacement is dead simple by design. A web-based kanban board backed by a database, with drag-and-drop cards, column management, and a clean interface. No Gantt charts. No dashboards. No automations engine. Just the core workflow our team actually used every day.

But here's where it gets interesting — because we built it ourselves, we could add things the SaaS tool couldn't do:

• Recurring cards. Tasks that repeat weekly or monthly auto-generate on schedule. No manual duplication, no forgotten recurring work.
• AI card creation. Describe a project in plain language and the system breaks it into cards with realistic timelines. Not a gimmick — it pulls from our historical data on similar projects.
• Direct API access. Other systems in our stack can create, update, and move cards programmatically. An email comes in, a card appears. A ticket closes, a card moves to Done. No third-party integration platform needed.
• Custom views. Built exactly the filtered views our managers needed — not the generic ones a SaaS product assumes every team wants.

Total development time: about two weeks of focused work. Ongoing hosting cost: effectively zero — it runs on infrastructure we already had.

The Real Numbers

Category	SaaS Tool	Custom Build
Annual cost	$4,620	~$0 (existing infrastructure)
Build time	N/A	~2 weeks
Features used daily	4 of 30+	All of them
Custom integrations	Limited (paid add-ons)	Unlimited (direct API)
Recurring card automation	Buggy, required workarounds	Built-in, reliable

The CRM Replacement: $3,000+/Year to Under $50

The Problem with Our Email Marketing Platform

Our CRM was an even more egregious case. We were paying a legacy email marketing platform over $250/month for what amounted to: maintaining a contact list, sending a weekly email, and tagging subscribers by interest. That's it.

The platform had landing pages, sales pipelines, appointment scheduling, e-commerce features, campaign builders — a massive product built for a use case three sizes too big for ours. We were paying for a marketing automation suite when we needed a mailing list with tags.

Worse, the platform's deliverability was declining. Emails were landing in spam. The editor was clunky. And their API was so dated that integrating it with anything modern required constant workarounds.

What We Built

A custom email system backed by a proper transactional email service. The components:

• Contact database with tagging, segmentation, and engagement tracking
• Email composer with a rich text editor and template support
• Send engine using a high-deliverability email service (pennies per thousand emails instead of hundreds of dollars per month)
• Activity feed — opens, clicks, bounces, all tracked per contact
• Tag management — segment contacts by interest, engagement level, or any custom criteria

The migration took about a week. We exported contacts from the old platform, imported them into the new system, verified deliverability (DKIM, SPF, DMARC — all configured properly), and sent our first campaign. Open rates immediately improved because we were sending from our own domain through a service with a clean reputation, not a shared platform IP that hundreds of other businesses were also using.

The Real Numbers

Category	Legacy CRM	Custom Build
Annual cost	$3,000+	~$36/year (email sending fees)
Contacts supported	Tiered (pay more for more)	Unlimited
Deliverability	Declining (shared IPs)	Excellent (own domain, dedicated)
Features used	3 of 40+	All of them
Integration flexibility	Legacy API, constant workarounds	Full control, direct database access

Combined Savings: $7,600+/Year

Between the two replacements, we eliminated over $7,600 in annual SaaS spend. The custom alternatives cost effectively nothing to run — they use infrastructure and services we'd already be paying for regardless.

But the savings aren't even the best part. The best part is that both tools now do exactly what we need and nothing else. There's no feature bloat. No confusing admin panels. No "upgrade to unlock" gates. No surprise price increases when the vendor decides to move upmarket.

The most expensive software isn't the software with the highest price tag. It's the software that charges you for complexity you never use while lacking the one specific thing you actually need.

When You Should NOT Do This

We'd be dishonest if we painted this as a universal playbook. Replacing SaaS with custom builds makes sense in specific situations and is a terrible idea in others. Here's when to stay on the SaaS:

• When the tool is genuinely complex and well-suited to your needs. If you're using 70%+ of a platform's features, you're getting your money's worth. Don't rebuild something that's already working well.
• When compliance or certification matters. Your accounting software, your HIPAA-compliant patient portal, your SOC 2-certified data platform — these carry certifications that a custom build would need to earn independently. That's expensive and time-consuming.
• When you don't have access to someone who can build and maintain it. A custom tool with nobody to maintain it is worse than an expensive SaaS tool that just works. The build is the easy part. The ongoing support is what matters.
• When the SaaS cost is trivial relative to the risk. If a tool costs $50/month and works fine, the juice isn't worth the squeeze. Focus your custom build energy on the $300+/month tools where the savings actually move the needle.

The Decision Framework

Before replacing any SaaS tool with a custom alternative, run this quick audit:

1. What percentage of features do you actually use? If it's under 30%, you're a strong candidate for replacement.
2. What's the annual cost? Below $500/year, probably not worth the effort. Above $2,000/year, worth a serious look.
3. What's missing? If you're constantly working around the tool's limitations or paying for third-party integrations to fill gaps, that's a signal.
4. Is the data yours? Can you export everything cleanly? If the vendor makes migration difficult, that's both a red flag about the vendor and a reason to leave sooner rather than later.
5. Who maintains the replacement? If you can't answer this clearly, don't build it yet.

The pattern we've seen across dozens of small businesses is consistent: most are paying for 5-10 SaaS tools. Two or three of those tools are bloated, overpriced, and underused. Those are your replacement candidates. The rest are fine where they are. For a deeper look at this pattern, see our breakdown of how custom AI can replace your most expensive SaaS subscriptions.

What We'd Do Differently

Two things, if we did this over:

First, we'd have migrated the CRM sooner. We kept the legacy platform for months after we knew it was wrong for us, partly out of inertia and partly because migration felt risky. It wasn't. The export was clean, the import was straightforward, and we should have done it six months earlier. That's $1,500 in spend we didn't need to incur.

Second, we'd have started with a clearer feature ceiling. When you build custom, there's a natural temptation to keep adding things because you can. We caught ourselves early, but the discipline of saying "this tool does these three things and nothing else" is important. Feature creep is how SaaS tools got bloated in the first place. Don't recreate the problem you just escaped.