One plan. Everything you need.
Interview Fitness covers all three pillars interviewers test — Technical, Behavioral, and System Design — for less than a coffee a day.
Billed monthly • Cancel any time
~$0.97/day
Less than a coffee
What's covered
All three interview pillars
Most platforms only cover algorithms. We cover everything interviewers actually test.
Technical
70%
of readiness score
Behavioral
20%
of readiness score
System Design
10%
of readiness score
Interview Fitness
/ month
~$0.97 per day
All three pillars. Unlimited practice. Real readiness tracking.
No credit card required · Cancel any time
Billed monthly. Cancel from account settings.
How we compare
Complete prep at 1/10th the price
Pricing as of March 2026. LeetCode Premium $35/mo, Exponent $300+/mo.
FAQs
Common questions
What patterns are included?
38 patterns total: 18 technical algorithms (Arrays, Graphs, Dynamic Programming, Trees, Heaps, Backtracking, Tries, and more), 14 system design patterns (Caching, Load Balancing, Sharding, Replication, Message Queues, API Rate Limiting, and more), and 6 behavioral patterns (Leadership, Conflict, Technical Challenges, Failures, and more).
What is the learning loop?
The learning loop is a five-stage method built into every pattern: read the material, explain it back in your own words, practice applying it, test your recall the next day, then review your updated readiness score. Each cycle takes 10–30 minutes.
Can I cancel any time?
Yes. Cancel from your account settings at any time. Your access continues through the end of the current billing period. No pro-rata refunds.
What does my readiness score mean?
Your readiness score is a 0-100 score weighted across Technical (70%), Behavioral (20%), and System Design (10%). A score of 85%+ means you are prepared to interview confidently at the mid-level or senior engineer level. codezilla tracks your score in real time as you complete patterns.
How long until I reach 85%+ readiness?
Most engineers reach 85%+ in 6-8 weeks at 10-30 minutes per day. The platform adapts to your schedule — 10 minutes on Tuesday and 3 hours on Saturday both count. There is no penalty for skipping days.
Stop hoping you're ready.
Know you are.
Join engineers who are keeping their skills sharp so a layoff never catches them unprepared. Less than $1/day.