NAILDD
Nail your next tech interview — 10 minutes a day
Practice real questions for software engineers, product managers, designers, and data roles. Worked solutions, streaks, no fluff.
Real questions from actual interview loopsWorked solution after every answerFrom sign-up to offer — 4-8 weeksStreaks, leagues, and quests to stay consistent
4,000+users
1,500+questions
30+company guides
Interview loops at:GoogleMetaAmazonMicrosoftAppleNetflixStripeAirbnbUberNotion
Sound familiar?
📚
Read a dozen guides and still freeze on basic interview questions
🔍
Found Glassdoor question lists — but no worked solutions, just hints
🤷
No idea where your gaps are or what to actually drill
Who it's for
01
Switching companies
Refresh fundamentals before interview loops at FAANG and top tech.
02
Switching roles
Moving from engineering to PM, IC to manager, analyst to data scientist — train the new skill stack.
03
First tech interview
New grad or junior — understand what interviewers actually ask and close base gaps.
What's inside
1,500+
questions and cases
Software engineering, product management, design, data analytics — sourced from actual interview loops.
Worked solution after every answer
Not just "correct/incorrect" — full reasoning, common pitfalls, and the why interviewers want to hear.
Multiple tracks, one product
Engineer, PM, designer, data analyst, scientist, engineer, systems analyst. Pick your role, get your bank.
30+ company guides
What to expect at Google, Meta, Amazon, Microsoft, Stripe, and 25+ other top tech employers.
Leagues and quests
Weekly leaderboards and daily quests with rewards — turns prep into a habit.
10 minutes a day
Short sessions, no cramming. Streaks and energy keep the rhythm.
How it works
1
Join the waitlist
Drop your email — we'll let you know the day the app drops on iOS and Android.
2
Pick your role
Select role, experience, target companies — the app calibrates the question mix.
3
Train every day
Answer questions, read worked solutions, climb the leaderboard. 10 minutes is enough.
Topics
Pick a role — the app surfaces the right topic mix.
More than drilling
Stats, leagues, quests — designed so you come back every day, not quit on day three.
Stats
Leagues
Quests
More tracks coming
We're expanding into adjacent roles. Tap «Want this» to push it up the queue.
💻Software Engineer
Data structures, system design, leetcode-style problems, behavioral loops🎨Product Designer
Design critiques, portfolio review, UX case studies, design systems👥Engineering Manager
People management, technical leadership, system design, behavioralWhat people say
«Trained for 2 months. Got the Stripe offer. The questions feel like actual interview loops, not textbook stuff.»
Sarah
Data analyst, Stripe
«Hated the "basic" questions at first — turned out my fundamentals were the gap. Third interview I stopped freezing on joins.»
David
Junior data analyst, Brex
«Was an analyst 3 years, wanted to move into product. The case-interview drills were exactly what online courses didn't give me.»
Carlos
Switched DA → PM, DoorDash
«I open it on the subway, sometimes at lunch. Not studying — just a habit. Couple of months in and it stuck.»
Emily
Mid-level data analyst, Notion
«Practiced JTBD and case interviews on the commute. Got the offer at Airbnb without breaking a sweat.»
Marcus
Senior PM, Airbnb
«Premium paid for itself in a week. The mistake-review feature is the killer — you see exactly where the gaps are.»
Priya
Product analyst, Figma
Pricing
The basics are free forever. Premium is for people who want more.
Free
$0
forever
- ✓1,500+ questions across all topics
- ✓Worked solution after every answer
- ✓Streaks, leagues, quests, and chests
- ✓Referral program
- ✓25 energy / day — refills
- ✓New role tracks — free
Premium
$6
per month
or $29 for 6 months · ≈ $0.16 per day
- ✓Everything in Free
- ✓Unlimited energy
- ✓Mistake review and weak-spot drills
- ✓Bookmarks
- ✓Advanced stats and topic radar
Be there at launch
The iOS and Android apps drop soon. Drop your email — we'll send you the App Store / Play Store link the day public access opens, plus a free PDF cheat sheet with the 50 most-asked questions while you wait.
Join the NAILDD waitlist
Free PDF cheat sheet with the 50 most-asked interview questions on signup. One email when the app launches.
No spam. One email when the app launches.
4,000+ engineers, PMs, and analysts already on the list.
FAQ
iOS and Android apps are in private beta. Join the waitlist and we'll send you the App Store / Play Store link the day public access opens — plus a free PDF cheat sheet with the 50 most-asked questions while you wait.