Route Your Wrong Answers Into the Fix That Matches Them — Free
List your wrong answers and why; the log sorts them and counts each lane.
Free tier — complete on its own
- Any number of wrong answers sorted
- Counts per error lane ranked by cost
- Copy the log as text
- Stateful link to any result
running the sample…
first-load · sample values are illustrative, not verified facts
Everything you paste stays in this browser tab. Nothing is uploaded, there is no account, and no request leaves the page to generate the result; clearing site data removes anything saved locally.
Keep the repair log instead of rebuilding it
$4 one-time · one-time · Your purchase is tied to this device with care — no account needed. Checkout is secure, and your extras are always ready here whenever you return.
- Printable log with each lane's drill listed beside it — estimate: 12 minutes saved per set, basis: 5 errors re-sorted at ~2.4 minutes each
- Saved local history across sets — estimate: 8 minutes saved per set, basis: re-entering 5 errors at ~96 seconds each
$4 one-time
Payment links are filled in after Stripe setup; until then the free tier is the whole tool.