Menu
Frequently Asked Questions

Your Questions, Answered

Everything you need to know about hiring fractional CTOs, building AI features, SaaS development costs, and making strategic technical decisions.

Technical Leadership & Hiring

Questions about fractional CTOs, agencies, full-time hires, and freelancers

What is a fractional CTO and how is it different from a consultant?

A fractional CTO is an ongoing strategic partner who owns technical outcomes, builds your team, and provides hands-on leadership. A consultant gives advice but doesn't execute. Fractional CTOs typically work 10-20 hours/week for 6-12+ months, make architectural decisions, hire and manage developers, and are accountable for shipping product. Consultants do project-based engagements, deliver recommendations, then leave.

Read more: Fractional CTO vs Agency

When should I hire a full-time CTO instead of part-time?

Hire full-time when: (1) You've raised Series A+ (\$3M+), (2) You have 15+ person engineering team, (3) You have strong product-market fit and are scaling fast, (4) You can afford \$250-350K total comp. Before that, part-time CTO provides same strategic value for \$96-144K/year while you validate PMF and grow the team.

Read more: Part-Time vs Full-Time CTO

Can a part-time CTO really manage a development team?

Yes. 10-20 hours/week is enough for strategic oversight, architecture decisions, code reviews, 1-on-1s with team leads, and unblocking developers. They're not coding full-time, they're providing leadership. Most technical decisions need hours of thought, not 40 hours/week of presence. Once team is 15+ people with multiple team leads, you need full-time leadership.

Read more: Part-Time vs Full-Time CTO

Why not just hire freelancers to build my MVP?

Freelancers can work if you have technical oversight and clear specs. Without oversight, you get: fragmented architecture (each freelancer builds differently), no code reviews (quality issues), knowledge silos (freelancer leaves, knowledge disappears), management overhead (you become project manager). A fractional CTO provides that oversight + builds the team + ensures consistency. For well-defined isolated tasks with existing tech leadership, freelancers are fine.

Read more: Fractional CTO vs Freelancers

How do I know if an agency is worth the premium price?

Agencies make sense for: (1) True fixed-scope projects (rare in startups), (2) Short engagements (8-12 weeks), (3) When you need a full team immediately. Red flags: They push proprietary platforms, resist using your preferred tech stack, unclear pricing after discovery, junior devs doing the work. Get 3 references, see actual code from past projects, and ensure contract includes source code ownership.

Read more: Fractional CTO vs Agency

What should I expect to pay for technical leadership?

Part-time CTO: \$8-12K/month for 10-20 hours/week. Full-time CTO: \$200-300K salary + 1-3% equity. Development agency: \$15-25K/month for full team. Senior freelancers: \$100-200/hour (\$8-16K/month full-time equivalent). The cheapest option isn't always the best - consider total cost including management overhead, technical debt, and opportunity cost of delays.

Read more: Part-Time vs Full-Time CTO

AI Strategy & Implementation

Questions about adding AI features, costs, and technical decisions

Should I build an AI-first product or add AI to enhance my existing SaaS?

AI-enhanced if: You have product-market fit, strong moat (data/network), high switching costs, budget <\$200K. AI-first if: Creating new category, no existing solution, incumbents are slow, you have \$500K+ funding + 12+ month runway. Most existing SaaS should go AI-enhanced (lower risk, faster, cheaper). New startups can consider AI-first if AI enables entirely new capability.

Read more: AI-First vs AI-Enhanced Products

Can I start AI-enhanced and pivot to AI-first later?

Yes, but it's expensive (\$200K-\$1M+ to rebuild). Better to choose one strategy and commit. Exception: If AI-enhanced features prove your AI capability works, you can launch AI-first product line alongside (not replacing) your existing product. Example: Adobe added AI to Creative Suite (AI-enhanced) AND launched Firefly standalone (AI-first). Don't rebuild, expand.

Read more: AI-First vs AI-Enhanced Products

Should I use Claude or GPT-4 for my application?

Use Claude for: Long documents (100K+ tokens), complex analysis, technical content, code generation, when you need nuanced understanding. Use GPT-4 for: Creative writing, short responses, general knowledge, conversational interfaces, when you need broad knowledge. Best approach: Hybrid routing - use Claude for complex tasks, GPT-4 for simple tasks, and save 40-60% on costs while maintaining quality.

Read more: Claude vs GPT-4 for Development

What are the hidden costs of AI features beyond API costs?

Hidden costs add 2.5-3x to initial estimates: Prompt optimization (\$10-25K first 6 months), error handling (\$15-30K), monitoring (\$8-15K setup + \$2-5K/month), data storage (\$5-12K + \$500-2K/month), technical debt (\$20-50K first year), team training (\$5-15K), compliance (\$5-15K), ongoing maintenance (\$3-8K/month). Budget 2.5x your development estimate for total first-year cost.

Read more: Hidden Costs of AI Features

When should I use AI agents instead of simple AI features?

Use AI agents when: Task requires multiple steps, needs to use tools/APIs, must make decisions based on context, runs autonomously. Use simple AI when: Single-step task (summarize, classify, generate), predictable input/output, no external tool access needed. Agents cost 3-5x more to build (\$80-150K vs \$30-50K) and have higher ongoing costs. Only use agents when simple AI genuinely can't solve the problem.

Read more: AI Agents for SaaS

How much should I budget for AI features as percentage of total development?

For AI-enhanced products (AI is a feature): Budget 25-35% of total development for AI. For AI-first products (AI is core): Budget 50-60% of total. Include initial development + hidden costs + 6 months ongoing. Example: \$200K total budget for AI-enhanced SaaS = \$50-70K for AI features (dev + setup + 6 months ongoing costs).

Read more: Hidden Costs of AI Features

SaaS Development & Pricing

Questions about building SaaS products, costs, and timelines

How much does it actually cost to build a SaaS MVP?

Realistic range: \$50-150K depending on complexity. Simple SaaS (basic CRUD, 5-8 features): \$50-80K. Moderate SaaS (custom workflows, 10-15 features): \$80-120K. Complex SaaS (AI, real-time features, integrations): \$120-200K. These include design, development, infrastructure, and testing. Beware estimates under \$30K - they usually mean offshore dev with quality issues or incomplete scope.

Read more: SaaS Cost Calculator

How long does it take to build an MVP?

With experienced team: 12-20 weeks for most MVPs. Solo developer: 24-40 weeks (2x longer). Small team (2-3 devs): 16-24 weeks. Agency: 16-26 weeks (slower due to communication overhead). Fractional CTO + developers: 12-20 weeks (fastest with oversight). Add 25% if you're not technical (requirements clarification takes longer). Add 50% if you don't have designs ready.

Read more: MVP Timeline Calculator

What increases the cost of building a SaaS product?

Major cost drivers: (1) Platform - Web is cheapest, mobile adds 50%, web + mobile + native apps adds 100%. (2) Custom design vs templates - adds \$10-20K. (3) Third-party integrations - each adds \$3-8K. (4) Real-time features - adds 30-50%. (5) AI features - adds 25-40%. (6) Complex permissions/multi-tenancy - adds 20-30%. Use our SaaS Cost Calculator to see exactly how each decision affects total cost.

Read more: SaaS Cost Calculator

Should I use an agency or hire a fractional CTO to build my MVP?

Fractional CTO for: Ongoing product development, budget <\$150K, need strategic guidance, building long-term product. Agency for: True fixed-scope project, need full team immediately, short engagement (8-12 weeks), unlimited budget. Cost difference: \$62K (fractional CTO) vs \$150K (agency) over 6 months. For most early-stage founders, fractional CTO provides better value and strategic partnership.

Read more: Fractional CTO vs Agency

Quick-Win Discovery Sprint

Questions about our signature 5-day strategic engagement

What exactly do I get from the Quick-Win Discovery Sprint?

In 5 days for \$5K you get: (1) Complete technical roadmap with timeline and milestones, (2) Architecture decisions documented, (3) Tech stack recommendation with trade-offs, (4) Cost breakdown for MVP and scaling, (5) Risk assessment and mitigation strategies, (6) Figma clickable prototype or technical proof-of-concept (your choice), (7) 90-minute strategy call to review everything. You own all deliverables and can take them to any development team.

Read more: Quick-Win Discovery Sprint

Is Quick-Win Sprint right for my stage?

Perfect for: Pre-seed to seed stage, validating idea before building, have \$50K+ budget for development, non-technical founder or need technical validation, pivoting or rebuilding existing product. Not right for: Already have working MVP and CTO, budget <\$30K for development, need to ship in next 2 weeks, just want to talk (book free call instead).

Read more: Quick-Win Discovery Sprint

Can I build the MVP myself after Quick-Win Sprint or do I need to hire you?

You own everything and can take it to any team. 40% of Quick-Win clients hire other teams to build. 60% continue with us because we already understand the product and have momentum. Zero obligation. The value is in the roadmap, architecture decisions, and de-risking your approach - not in locking you into ongoing work.

Read more: Quick-Win Discovery Sprint

Explore More Resources

Interactive Tools

Use our calculators to estimate costs and timelines for your SaaS product.

Browse Tools

Comparison Guides

Compare fractional CTO vs agency, full-time CTO, and freelancers to make the right choice.

Compare Options

AI Engineering Blog

Deep dives into AI strategy, costs, implementation, and real case studies.

Read AI Articles

Free Resources

Checklists, interview kits, and planning tools for SaaS founders.

Get Resources

Still Have Questions?

Every startup's situation is unique. Let's talk through your specific questions and figure out the best path forward for your product.

Or email us at hello@uxcontinuum.com