Fantasy Startup vs 66 Days
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fantasy Startup
Learn startup investing skills and strategy risk-free through an interactive simulation. Analyze real startup scenarios, build a virtual portfolio, and track your investments' success or failure. Gain practical knowledge for venture capital and wealth building.
- Virtual portfolio with $1,000 starting capital
- 50 real-world startup case studies
- 150 bite-sized venture capital lessons
- Leaderboard competition with friends
- Completion certification for investors
- Realistic startup outcomes (IPO, acquisition, failure)
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Want to learn how to invest in startups — without risking real money? Fantasy Startup® is the #1 interactive simulation for learning the skills, strategy, and decision-making of startup investing. Perfect for college students, young professionals, or anyone curious about venture capital and building wealth. With $1,000 in your virtual portfolio, you’ll discover, analyze, and invest in real startup scenarios. Each company is broken down into Market Size, Team, Signals, Valuation, and Risks — just like actual investors review. You’ll need to decide in minutes whether to invest or pass. Over the course of the game, you’ll unlock up to 50 startup opportunities, track your portfolio, and watch as your investments succeed or fail through realistic startup outcomes like IPOs, acquisitions, or failures. Every in-game “day” equals a year in a startup’s life — so you’ll quickly see the results of your decisions. Key Features: - Start with $1,000 and build your own startup portfolio - 50 real-world startup case studies with instant investment choices - 150 bite-sized lessons on venture capital, angel investing, and entrepreneurial finance - Compete with friends on the leaderboard and compare portfolios - Earn points, unlock quizzes, and prove your investing skills Completion Certification: Analyze 25+ deals and achieve a 3X return multiple to become a Certified Startup Investor by Doriot Why It Matters: Startup investing is one of the fastest-growing areas of wealth building. Studies show even small exposure to private markets (up to 10% of net worth) can diversify and strengthen long-term returns. Fantasy Startup® makes this world accessible, fun, and risk-free — helping you prepare for when you’re ready to invest for real. Whether you dream of becoming a venture capitalist, want an edge in finance and entrepreneurship classes, or simply want to learn how to build wealth smarter — Fantasy Startup® is your gateway to the investing economy of the future.
66 Days
Master banking and consulting interviews with daily AI-powered practice. Track your progress on a 66-day journey with personalized feedback on technical, behavioral, and case questions. Improve your resume and gain confidence for top firms.
- AI interview coach with personalized feedback
- Daily drills for behavioral, technical, and case questions
- 66-day progress heat map
- Resume checker
- Excel and valuation tools
- Analytics dashboard
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66 Days Prep is an AI-powered career preparation platform designed to help candidates master interviews for banking and consulting roles through structured, daily progress. The app combines personalized coaching, habit tracking, and analytics to transform your preparation into a consistent 66-day journey. Each day you’ll train across behavioral, technical, cases or market-based questions while receiving instant feedback from an AI coach. The goal is simple — make interview mastery a daily habit. Your progress is visualized through a 66-day heat map that tracks consistency, focus, and improvement. Every session compounds your learning so that when interview season arrives, you’re confident, sharp, and ready to perform. Key features: • AI interview coach for personalized feedback on real questions • Daily drills in behavioral, technical, cases, and market news • 66-day heat map that tracks performance and consistency • Resume checker to strengthen clarity and impact • Excel and valuation tools for technical accuracy • Productivity features including timers and streak reminders • Analytics dashboard that highlights your growth over time Built by former bankers and consultants, 66 Days Prep mirrors real recruiting standards at leading firms such as Goldman Sachs, Morgan Stanley, McKinsey, and Bain. The app ensures that every minute spent practicing is focused on what matters most — structured thinking, confident delivery, and business intuition. Whether you are recruiting for your first internship, preparing for post-graduate consulting interviews, or advancing your career in finance, 66 Days Prep provides a disciplined path to daily improvement. Consistency is what separates good candidates from great ones. 66 Days Prep helps you build that consistency through smart repetition, clear feedback, and visible progress you can track. Build momentum, develop confidence, and master your interviews with 66 Days Prep — your AI career partner for banking and consulting success. Some features, including the AI interview coach, require a subscription. Please review our Privacy Policy at https://www.66daysprep.com/privacy. By using this app, you agree to the terms outlined in https://www.66daysprep.com/terms and https://www.apple.com/legal/internet-services/itunes/dev/stdeula/.
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Verdict
The clearest difference is rating: 66 Days at 4.8 against Fantasy Startup's 4.2. 66 Days also leads on update cadence (every 10 days vs every 9 months) and ratings volume (258 vs 45). Fantasy Startup's advantage is iOS requirement (15.1 vs 17.0). On price, review sentiment, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Fantasy Startup sells 6 one-off in-app purchases and 66 Days sells 2 in-app purchases, starting at $15.99 per month. Whichever you choose, the download price is not the number that matters.
66 Days holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: 66 Days has 258 ratings behind it against 45, so its average is the more settled of the two. Written reviews point the same way: 43% of Fantasy Startup's written reviews are positive against 50% of 66 Days's.
Fantasy Startup ships an update every 9 months, 66 Days every 10 days. The most recent releases landed on October 11, 2026 and October 23, 2026 respectively.
| Parameter | Fantasy Startup | 66 Days |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (45 ratings) | 4.8 (258 ratings) — better |
| Positive reviews | 42.9% of reviews | 50.0% of reviews — better |
| Number of ratings | 45 | 258 — better |
| Update frequency | Every 9 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 34 MB | 110 MB |
| Age rating | 4+ | 4+ |
| Developer | Doriot Markets LLC | Uru Technologies, LLC |
Customer experience
Fantasy Startup
66 Days
In-app purchases
Fantasy Startup
- Deal every 12 hours$0.99
- $10,000 in-game cash$1.99
- Deal every 6 hours$2.99
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- $25,000 in-game cash$3.99
- $50,000 in-game cash$4.99
- At your own pace$5.99
66 Days
- 66 Days Prep Pro$15.991 Month
- 66 Days Prep Pro$49.991 Year









