Codeclock vs Preparo
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
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.
- Comprehensive contest schedule
- Support for major platforms (Codechef, Codeforces, LeetCode)
- Set contest reminders
- Add contests to device calendar
- User-friendly interface
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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
Preparo
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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 youβre 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 itβs 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 donβt 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.β¨ Prep Across Devices Sync your progress across devices using iCloud.
Screenshots
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
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.
| Parameter | Codeclock | Preparo |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | β |
| Update frequency | Every 3 months | Every 3 weeks β better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | β |
| Devices | iPhone, iPad, iPod β better | iPhone, iPad |
| Requires iOS | 12.0 β better | 17.0 |
| Further details β not scored | ||
| Size | 46 MB | 4 MB |
| Age rating | 12+ | 4+ |
| Developer | Naman Anand | Gowtham Ravichandran |
In-app purchases
Codeclock
No in-app purchases
Preparo
No in-app purchases









