Comparison

66 Days vs Coco

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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/.

About

Coco

This AI-powered communication coach offers daily practice scenarios and voice-based roleplay to build confidence in everyday conversations. Receive detailed feedback and personalized tips in a safe, judgment-free environment.

Highlights
  • Daily AI practice scenarios
  • Voice-based roleplay
  • Detailed performance feedback
  • Personalized improvement tips
  • Progress tracking & analytics
  • Practice real-life situations
Features
Read full description

Coco is a subscription-based AI communication coach that helps you build confidence in everyday conversations. SUBSCRIPTION REQUIRED A Coco Pro subscription is required to access all features. Subscription options and pricing are displayed at signup. WHAT YOU GET WITH COCO PRO: • Daily AI-powered practice scenarios • Voice-based roleplay conversations • Detailed performance feedback • Personalized improvement tips • Progress tracking & analytics Practice real-life situations like ordering coffee, setting boundaries, or handling difficult conversations - all in a safe, judgment-free environment with your AI coach, Coco. --- • Payment will be charged to your Apple ID account at confirmation of purchase • Subscription automatically renews unless canceled at least 24 hours before the end of the current period • Manage subscriptions in your Account Settings after purchase Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://ashvinar.github.io/coco-legal/privacy.html

Screenshots

66 Days4 screens
Coco4 screens

Verdict

The call

66 Days and Coco both sit at 4.8 stars, but that hides the real split: 100% of Coco's written reviews are positive against 50% of 66 Days's. 66 Days's advantage is monetization model (freemium vs subscription) and ratings volume (258 vs 2). On price, rating, update cadence and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. 66 Days sells 2 in-app purchases, starting at $15.99 per month and Coco sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Coco holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: 66 Days has 258 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 50% of 66 Days's written reviews are positive against 100% of Coco's.

UpkeepUpdate frequency

66 Days ships an update every 10 days, Coco weekly. Both last shipped on October 30, 2026.

Scorecard4 real differences · 6 level
66 Days versus Coco: the parameters behind the verdict, then further details
Parameter66 DaysCoco
PriceFreeFree
Rating4.8 (258 ratings)5.0 (2 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings258 — better2
Update frequencyEvery 10 daysWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium — betterSubscription
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better26.0
Further details — not scored
Size110 MB29 MB
Age rating4+9+
DeveloperUru Technologies, LLCAshvin Arora

Customer experience

66 Days

All ratings228 ratings
Positive96.9%
Neutral1.3%
Negative1.8%
Written reviews6 reviews
Positive50.0%
Neutral16.7%
Negative33.3%

Coco

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

66 Days

Subscriptions2
  • 66 Days Prep Pro$15.991 Month
  • 66 Days Prep Pro$49.991 Year
3 purchases

Coco

Subscriptions3
  • Coco Pro Monthly3 Days trial$9.991 Month
  • Coco Pro Monthly$9.991 Month
  • Coco Pro Yearly3 Days trial$69.991 Year

Questions

Is 66 Days free?
66 Days is free to download, with in-app purchases available.
Is Coco free?
Coco is free to download, with in-app purchases available.
Which has better reviews, 66 Days or Coco?
Coco is rated higher. 66 Days averages 4.8 out of 5 from 258 ratings, while Coco averages 5.0 from 2 ratings.
Do 66 Days or Coco have ads?
Neither 66 Days nor Coco shows ads.
Which is updated more often, 66 Days or Coco?
66 Days ships an update every 10 days, and Coco weekly. Most recently, 66 Days was updated on October 30, 2026 and Coco on October 30, 2026.

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