Comparison

Codeclock vs Preparo

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

Head to head
About

Codeclock

This app helps competitive programmers track coding contests from major platforms. It provides a comprehensive schedule, allows users to set reminders, and integrates with their device's calendar to prevent missed events.

Highlights
  • Comprehensive contest schedule
  • Support for major platforms (Codechef, Codeforces, LeetCode)
  • Set contest reminders
  • Add contests to device calendar
  • User-friendly interface
Read full description

The ultimate competitive programming app! Stay on top of all the action with our comprehensive schedule of all coding contests happening on the biggest websites such as Codechef, Codeforces, LeetCode, and more. Codeclock is the ultimate tool for competitive programmers looking to stay ahead of the game. With our comprehensive schedule of coding contests happening on the biggest websites like Codechef, Codeforces, LeetCode, and more, you'll never miss an important event again. Our user-friendly interface makes it easy to browse upcoming contests and set reminders, so you can stay on track and always be prepared. Plus, you can even add contests directly to your calendar app, so you're always up to date. Whether you're a seasoned pro or just starting out, Codeclock has everything you need to take your coding skills to the next level. So why wait? Download Codeclock today and start dominating the world of competitive programming!With Codeclock, you'll never miss a coding challenge again. Our user-friendly interface makes it easy to browse through all upcoming contests and set reminders so you can stay on track. You can even add contests directly to your calendar app, so you never forget about an important event

About

Preparo

Features
Read full description

Preparo is a FREE interview tracking and AI-assisted preparation app. The Easy Way to DSA. Track your progress through 75 tried and tested DSA problems. Use the inbuilt timer to simulate real-world DSA interviews. Get a hint if you’re stuck, go through the solution after your attempt in the language of your choice or sit back and watch a video solution for the problem, all from within the app. With AI, You Never Start From 0. Save previously faced interview questions to give you a head start for the next interview. Fret not if it’s your first interview, AI will generate as many questions as you want. Be One Step Ahead of Schedule. Focus on the prep as Preparo takes care of reminding you to revise or nudges you minutes before an interview with your interview notes. Get timely reminders to store the questions you faced in the interview. You don’t have to leave the app for answers - AI will do it for you at the tap of a button. ExportInterviewExperience.pdf Easily share your round- or keyword-filtered breakup of questions as a PDF with your friends. Accessible by Default Experience the app in different text sizes and in light and dark modes for a truly native experience. Notes Before and After the Interview Save your to-do list to remind yourself to fill the water bottle on your desk or check your Meet permissions for a seamless interview experience. Journal your thoughts after an interview to learn from your experience later on.
 Prep Across Devices Sync your progress across devices using iCloud.

Screenshots

Codeclock4 screens
Preparo4 screens

Verdict

The call

The clearest difference is update cadence: Preparo at every 3 weeks against Codeclock's every 3 months. Codeclock's advantage is iOS requirement (12.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Codeclock ships an update every 3 months, Preparo every 3 weeks. The most recent releases landed on June 4, 2026 and May 16, 2026 respectively.

Scorecard2 real differences Β· 6 level
Codeclock versus Preparo: the parameters behind the verdict, then further details
ParameterCodeclockPreparo
PriceFreeFree
Positive reviews50.0% of reviewsβ€”
Update frequencyEvery 3 monthsEvery 3 weeks β€” better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeβ€”
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS12.0 β€” better17.0
Further details β€” not scored
Size46 MB4 MB
Age rating12+4+
DeveloperNaman AnandGowtham Ravichandran

In-app purchases

None

Codeclock

No in-app purchases

None

Preparo

No in-app purchases

Questions

Is Codeclock free?
Codeclock is free to download, with no in-app purchases.
Is Preparo free?
Preparo is free to download, with no in-app purchases.
Do Codeclock or Preparo have ads?
Neither Codeclock nor Preparo shows ads.
Which is updated more often, Codeclock or Preparo?
Codeclock ships an update every 3 months, and Preparo every 3 weeks. Most recently, Codeclock was updated on June 4, 2026 and Preparo on May 16, 2026.

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