The Fallacy of the All-in-One HR Monolith

When you choose an applicant tracking system, you’re making a 3 to 5 year commitment. Your candidate database, your hiring history, your interview notes, your team’s workflows, all of it lives inside that vendor’s infrastructure. The choice is at least as much about the vendor’s long-term alignment as it is about current features.

Enterprise HR vendors pitch “all in one” as a feature. For startups, it’s a trap. This page explains why.

What vendors mean by “all-in-one”

When enterprise HR software vendors pitch an all-in-one platform, they typically mean a bundle that includes:

• Applicant tracking system (ATS)
• Candidate relationship management (CRM)
• Onboarding workflows
• Performance reviews and goal tracking
• Payroll and benefits administration
• Time tracking and PTO
• Learning management
• HRIS for employee records
• Compensation planning

The pitch is that you buy one platform, integrate your HR data once, and avoid the complexity of stitching together multiple tools. For a 5,000-person enterprise with a dedicated HR operations team, this can make sense. For a 20-person startup, it’s overkill by about 80%.

Three problems with the monolith for startups

Problem 1: You pay for features you don’t use

A typical enterprise HR suite charges for the full bundle whether you use it or not. A 25-person startup that needs an ATS and basic onboarding ends up paying for performance reviews, compensation planning, and learning management they don’t want, because those modules are part of the base license.

The math gets worse as you upgrade. Greenhouse’s Essential tier includes the ATS but not the candidate CRM. To get CRM, you upgrade to Advanced or Expert, which run $12,000 to $50,000+ per year. An increase justified almost entirely by features most startups don’t need yet.

Modular alternatives let you pay for exactly what you use. A 25-person startup might spend $0 to $1,200/year on CurriculoATS for hiring plus Gusto for payroll plus Lattice for performance (later on, if at all). Total HR tech spend is a fraction of an enterprise suite, and every dollar is going to functionality the team actually uses.

Problem 2: Feature gating creates permanent upgrade pressure

Monolithic HR suites use feature gating strategically. The feature you actually need is always in the next tier up. Custom reporting lives on Enterprise. API access lives on Enterprise. Advanced analytics lives on Enterprise. SSO lives on Enterprise. Audit logs live on Enterprise.

The base tier is designed to be almost sufficient so you upgrade. Every 6 to 12 months, there’s a new “must-have” feature gated behind a higher plan. Lever locks custom reporting behind Enterprise. Greenhouse locks the CRM behind Advanced/Expert. Workable locks AI sourcing behind Premier.

CurriculoATS deliberately avoids feature gating. Every feature is on the free plan with a 1-job limit. Pro ($100/month, early bird $50) just adds unlimited active jobs and priority support. Enterprise adds Full API access, SSO/SAML, custom integrations, dedicated account manager, and SLA guarantees. There’s no “upgrade to unlock analytics” or “upgrade to unlock Slack integration” because those are included on every plan.

Problem 3: Vendor lock-in gets expensive fast

The bigger your monolithic HR suite gets, the harder it is to leave. Multi-year contracts, data export restrictions, proprietary workflow configurations, custom integrations, bespoke reporting dashboards. Industry estimates put HR tech migration costs at $2,000 to $20,000+ depending on data volume and integration complexity.

Lock-in is worse when the vendor has been acquired by a private-equity rollup. Lever is owned by Employ Inc., which also owns JazzHR and Jobvite. PE ownership in HR tech has a consistent pattern: engineering teams shrink, product roadmaps slow, support contracts to save costs, and the vendor’s incentive shifts from serving customers to maximizing returns.

Modular alternatives reduce lock-in by construction. If Curriculo stops serving you well, you export your candidates via one-click CSV and switch to another ATS without touching your payroll, onboarding, or performance review tools. The blast radius of any single vendor’s failure is much smaller.

The modular HR stack for a 20-100 person startup

Here’s what a lean, modular HR stack looks like:

• ATS: CurriculoATS (applicant tracking, AI scoring, hiring pipelines, interview scheduling)
• Payroll + Benefits: Gusto or Rippling (payroll runs, benefits admin, basic HRIS)
• Onboarding: Built-in to payroll, or lightweight standalone like Sapling
• Performance: Nothing under 30 employees. Lattice or 15Five at 30-100.
• Learning: External courses (Udemy, Coursera) rather than a dedicated LMS
• Time tracking: Only if relevant. Toggl, Harvest, or nothing.

Each tool does one thing well. Each has an API. Each can be swapped for a better alternative when the team outgrows it. The stack evolves with the company rather than forcing the company to fit the stack.

Why CurriculoATS is built modular

CurriculoATS is deliberately not an HR suite. We do one thing: applicant tracking with outcome-based AI scoring.

• Lean feature set. AI scoring with written reasoning. Hiring pipelines. Gmail-style inbox. Interview scheduling. Slack integration. Google Workspace SSO. Recruitment analytics. Branded careers portal. Email-based apply. No performance reviews, no payroll, no benefits admin.
• Every feature on every plan. The free plan has the complete feature set with a 1-job limit. Pro and Enterprise add unlimited jobs, priority support, and (on Enterprise) Full API access plus SSO/SAML.
• API-first on Enterprise. Plug Curriculo into your existing stack rather than replacing it.
• One-click migration from Greenhouse, Ashby, Workable, or Lever.
• No contracts, no cancellation fees. Switch away from Curriculo whenever you want.

The vendor independence question

There’s a broader consideration: the state of HR tech consolidation in 2026.

Private equity firms have been rolling up HR software vendors aggressively. Employ Inc. owns Lever, JazzHR, and Jobvite. Other rollups own multiple payroll platforms, performance review tools, and benefits administration systems. The consolidation trend has direct consequences for customers:

• Product roadmaps slow as PE owners cut engineering costs
• Support quality degrades as call centers get outsourced
• Customer success teams get smaller
• Price increases accelerate as PE owners optimize for returns
• Feature gating intensifies to drive upgrade revenue

Curriculo is founder-led and independent. Dev, an ex-Amazon and ex-Synopsys engineer, runs the product. The team of 10 is accountable to customers. We are not owned by a PE rollup.

When the monolith actually makes sense

To be fair, all-in-one HR suites do make sense for some companies:

• Enterprises with 1,000+ employees and dedicated HR operations teams
• Companies with complex compliance requirements that benefit from unified reporting
• Organizations that value a single vendor relationship over modular flexibility
• Teams with the budget to pay for features they don’t fully use

For startups in the 5 to 200 employee range, none of these apply. You’re better off with a modular stack of best-in-class tools you can swap independently as you grow.

Start with just an ATS. The minimum viable HR tech stack is ATS + payroll. Everything else can wait until there’s a real reason.

CurriculoATS handles the ATS piece with outcome-based AI, email-based apply, and flat pricing that doesn’t scale with team size. The free plan is free forever with all features. Pro is $100/month flat ($50/month during early bird) with unlimited active jobs. No contracts. No lock-in. Swap us out whenever you find something better.

Related: features, integrations, blog post on avoiding HR monoliths.