LeetFlash vs DeveloperCards
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LeetFlash
Read full descriptionHide full description
Mastering algorithms isn’t just about solving problems — it’s about reviewing them effectively! LeetFlash applies spaced repetition techniques, inspired by the Ebbinghaus forgetting curve, to help you deeply memorize and retain LeetCode problems, making your technical interview prep smarter and more efficient. Key Features: - Intelligent Review Scheduling: Automatically plan optimal review times based on your performance. - Easy Problem Capture: Use our Chrome Extension to save problems. - Cross-Device Sync: Keep your study progress in sync across mobile and desktop. Who is it for? - Students and professionals preparing for technical interviews - Developers aiming to strengthen their algorithm foundation - Learners looking to build a sustainable and effective study habit Let LeetFlash be your coach for algorithm mastery — turn your practice into lasting success! Note: Adding new problems is currently supported via the LeetFlash website. The iOS app focuses on reviewing your existing saved problems. Privacy Policy: https://www.leetflash.com/privacy Terms of Use: https://www.leetflash.com/terms
DeveloperCards
Read full descriptionHide full description
DeveloperCards: Spaced Recall helps developers build durable understanding of core programming concepts—so you can explain them clearly in interviews and use them correctly in real projects. What you get • Curated concept cards with clear explanations • Practical code examples (Full Stack Questions) • Spaced‑repetition review so you remember long‑term • A concise calendar for preview Who it’s for • Newer entering software development • Developers strengthening fundamentals • Full‑stack interview preparation Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://tartan-tortoise-e81.notion.site/DevCards-Spaced-Recall-Privacy-Policy-2bfa758eb54580db99a3ed89369f9a13
Screenshots
Verdict
LeetFlash and DeveloperCards are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. LeetFlash sells 2 in-app purchases, starting at $4.99 per month and DeveloperCards sells 1 in-app purchase, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | LeetFlash | DeveloperCards |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 10 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 32 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | 润田 何 | TimeAwake Limited |
In-app purchases
LeetFlash
- LeetFlash Premium$4.991 Month
- LeetFlash Premium$49.991 Year
DeveloperCards
- DeveloperCards Premium$2.991 Month
Questions
Is LeetFlash free?
Is DeveloperCards free?
Do LeetFlash or DeveloperCards have ads?
Other comparisons















