Lisa's equation solver icon

Lisa's equation solver

Harnisch Gesellschaft m.b.H.

⬇ 100,000+ downloads

Est. actual: 133,523

Free

Released: Jan 28, 2015

No in-app purchases

Contains ads

Signals

3 this week · 1 positive · 1 warning All of this week's signals →

📈Last 7 days 0 installs — 100% slower than the week before (+19) · 1/day since Oct 7
🏆Among Education apps bottom 0% by installs gained this week (1707 peers growing)
🛠Updates quiet · updated 95 days ago

Installs since launch

+19 installs since Oct 7

Update history

0.9.7t Aug 8, 2026 · seen Oct 24, 2026

★ Basic support for Android 16

Only the current version so far — new entries appear as the app ships updates.

Lisa's equation solver is an education app by Harnisch Gesellschaft m.b.H. with 100,000+ downloads (about 134K estimated). Released Jan 28, 2015. Install growth, rank history, SDKs and ad networks.

From the store listing: “Solve quadratic / cubic / quartic equations and systems of linear equations”