Your PC · your phone second screen

Secondline

Capture interview audio and quiz questions. Get clear answers on your desktop — or quietly on your phone. Download free; buy a lifetime license when you’re ready.

Download free Buy lifetime license

How it works

Install the app, add your AI key, activate your license, and use your phone as a second screen.

1. Download and install Get Secondline for Windows or Mac below. Open the app after install.
2. Get a free Gemini API key (recommended) Go to aistudio.google.com/apikey → sign in with Google → click Create API key → copy the key. In Secondline open Settings → choose Gemini → paste the key → Save.
Or use an OpenAI key Go to platform.openai.com/api-keys → sign in → Create new secret key → copy it. In Secondline Settings → choose OpenAI → paste the key → Save.
3. Buy and activate your lifetime license Pay once with PayPal below. We email your license key to the address you use at checkout. In the app open License → paste the key → Activate. Each license works on up to 2 computers.
4. Use your phone as a second screen In the app open Phone screen → Show QR & pair. Scan with your phone (same Wi‑Fi). Keep that browser tab open during interviews.

Download

Free to download. Add your AI key and license to get started.

Windows macOS

Windows: if SmartScreen warns, More info → Run anyway (until code-signed).
macOS: if Gatekeeper blocks, right-click → Open.

Buy a lifetime license

One-time purchase — no subscription. Download is free; a lifetime license unlocks Secondline on up to 2 computers. Pay with PayPal — we email your key to the address you use at checkout.

$99 One-time · lifetime · 2 computers · key emailed after payment

Buy lifetime license

After paying, check your inbox (and spam). Then open Secondline → License and paste the key.