AI-Generated Apps vs Agencies: What the Real Costs Reveal
Budgets are tight, timelines tighter. Should you spin up an app with an online AI app builder or hire an agency? Here's a pragmatic, CFO-friendly breakdown that speaks to engineering, product, and procurement alike.
The cost anatomy
- Build: agency day rates ($900-$1,600), contractors ($80-$180/hr), or AI website generator plans ($30-$300/mo) plus add-ons.
- Infra: hosting, DB, auth, observability ($50-$2,000/mo depending on scale).
- Change: iteration cycles, meetings, QA, refactors-often 30-50% of build cost.
- Compliance: SOC 2, SSO/SAML, DPA review; agencies bill, platforms price as tiers.
- People: internal PM, tech lead, and support after launch.
Three scenarios with 12-month TCO
1) Prototype CRM for a field team (2 workflows, mobile, sheets data). Using Glide or similar AI app builder: $99-$249/mo, 40 hours internal setup, launch in a week. TCO ≈ $7k-$14k. Agency: 6-8 weeks, $45k-$85k. Traditional from-scratch dev: 10-14 weeks, $120k-$220k.
2) Partner portal with role-based access, PDF generation, webhook/API orchestration. Online AI app builder plus paid connectors: $300-$600/mo, 120 hours internal, TCO ≈ $25k-$55k. Agency: $120k-$200k. From-scratch: $220k-$380k.
3) Regulated workflow (PII, SOC 2, SSO, fine-grained audit). Low-code + premium security: $800-$2,000/mo, 200-300 internal hours, audits. TCO ≈ $80k-$180k. Agency with compliance expertise: $250k-$600k. From-scratch enterprise build: $500k+.
Glide vs AI app builder: where each saves money
- Glide: fastest for data-backed CRUD, mobile-first, App Store bypass. Savings: PM time and user training.
- Generic AI website generator: cheapest for brochureware, microsites, and content flows. Savings: copy/design.
- Programmable online AI app builder (with APIs, scripts): best for integrations, role logic, and ops tools. Savings: backend/DevOps headcount.
- Custom code: wins when unique algorithms, extreme scale, or specialized security are nonnegotiable.
Hidden costs to model
- Vendor limits: row, ops, or API quotas that trigger plan jumps.
- Lock-in: migration projects can erase year-one savings; demand exportable schemas.
- Performance: cold starts and rate limits add toil; test with peak data.
- Support: who owns 2 a.m. incidents-your team, the platform, or the agency?
Procurement checklist
- Map workflows to platform primitives (tables, roles, actions).
- Price for peak usage, not averages; include staging and test tenants.
- Verify SSO, DLP, audit logs, and DPAs before build.
- Negotiate roadmap items (connectors, quotas) up front.
- Set exit plan: export, code escrow, or API-first mirroring.
For developers, model cost by endpoints, tokens, and triggers: count API calls, background jobs, and AI inference. Validate SDK limits, scheduled tasks, and observability charges. In Glide vs AI app builder debates, prototype both; even an AI website generator plus scripts may beat bespoke stacks today.
Bottom line: AI builders collapse time-to-value and slash TCO for 60-70% of business apps. Agencies still shine for ambiguous discovery, complex integrations, and regulated delivery. Choose the curve that fits your risk, not the hype.
