PROTO - circuit simulator icon

PROTO - circuit simulator

PROTO
★ 4.4 (14,110 ratings)
⬇ 1,000,000+ downloads
Est. actual: 3,857,105
Free
Released: Oct 25, 2021
IAP: $2.99 - $19.00 per item
No ads
Rated: Everyone

Signals

4 this week · 2 positive · 2 warnings All of this week's signals →
  • 📈Last 7 days +15K installs — 19% slower than the week before (+18K) · 2K/day since Sep 26
  • 🏆Among Education apps top 1% by installs gained this week (1452 peers growing)
  • ⭐Rating ★ 4.51 → 4.36 since Sep 26 — around the 1.53.0 update (Oct 31, 2026)
  • 🛠Updates actively updated · updated 10 days ago · every ~25 days (3 updates tracked)
Installs since launch
0 1.9M 3.9M 3.9M Oct 25, 2021 today
+80,418 installs · +222 ratings since Sep 26
Update history
1.53.0 Oct 31, 2026 · seen Nov 5, 2026
• New component [MISC PACK]: Speaker — listen to your circuit<br>• New component [MISC PACK]: Net label — connect nodes by name, without wires<br>• New example: Beeper (IC 555)<br>• Bug fixes and stability improvements
1.52.0 Oct 10, 2026 · seen Oct 15, 2026
• New CMOS logic ICs: 4518 (dual BCD counter) and 4520 (dual 4-bit binary counter)<br>• New Script IC with 32 inputs and 32 outputs<br>• PROTO is now available in French<br>• Bug fixes and stability improvements
1.51.0 Sep 11, 2026 · seen Sep 26, 2026
• New CMOS logic ICs: 4008 adder, 4024 counter, 4027 flip-flop, 4077 XNOR<br>• New in-app datasheets for TTL and CMOS logic ICs<br>• New Screen margin setting for devices with rounded corners<br>• Bug fixes and stability improvements
PROTO - circuit simulator trailer Trailer
PROTO - circuit simulator screenshotPROTO - circuit simulator screenshotPROTO - circuit simulator screenshotPROTO - circuit simulator screenshotPROTO - circuit simulator screenshotPROTO - circuit simulator screenshotPROTO - circuit simulator screenshotPROTO - circuit simulator screenshot

PROTO - circuit simulator is an education app by PROTO with 1,000,000+ downloads (about 3.9M estimated). +15K installs in the last 7 days. Rated 4.4 from 14K ratings. Released Oct 25, 2021. Install growth, rank history, SDKs and ad networks.

From the store listing: “Are you looking for tools like Multisim, SPICE, LTspice, Proteus, Altium or PhET simulations? That's great! PROTO is an real time electronic circuit simulator which means you are able to setup a circuit with various components and simulate behaviour of the electronic circuit ⚡ During simulation you can check voltages,…”