DSA Vault

Your private LeetCode archive — offline on your phone.

v1.0.5 4.5 MB Android 8+

⤓ Download APK (v1.0.5)
Install steps
  1. Tap Download APK above.
  2. Open the downloaded file. If Android warns about "unknown sources", tap Settings → Allow from this source, then back and Install.
  3. Open DSA Vault, sign in with your WhatsApp number (OTP), then tap ⤓ Sync to save all problems offline.
  4. Use 🗑 Free up anytime to remove the offline copy.

The Solutions tab loads live from LeetCode (needs internet); everything else works fully offline once synced.