One tap. Five changes.
Switch one bulb and its neighbors flip with it. Every move reshapes the board.
A circuit puzzle for iPhone & iPad
Simple rules hide brilliant challenges. Tap a bulb to flip it and its neighbors—then turn every light on in as few moves as possible.


How it works
The goal is clear. The path is yours to discover.
Switch one bulb and its neighbors flip with it. Every move reshapes the board.
Build momentum across three puzzle sizes, from quick 3×3 sparks to deeper challenges.
Solve in fewer moves, collect more stars, and light your way through every level.

Easy to learn
Start with the center. Watch the circuit respond. Plan the next move. On—Off turns a familiar grid into a compact test of pattern recognition and logic.
“Simple rules.
Brilliant challenges.”
Player support
Tell us what happened and we’ll open a ready-to-send email to the Red Hawk Studios support team.
support@redhawk-studios.comYour information
Effective July 20, 2026
This Privacy Policy explains how Red Hawk Studios (“we,” “us,” or “our”) handles information when you use the On—Off mobile game and this support website.
On—Off stores game progress, settings, sound preferences, and purchase entitlement locally on your device. Red Hawk Studios does not require an account and does not receive this locally stored gameplay information. You can remove it by deleting the app.
The free version uses Google AdMob. Google and its advertising partners may process device and advertising identifiers, IP-address-derived approximate location, ad interactions, and app or device diagnostics to deliver and measure ads, prevent fraud, maintain security, and personalize ads only when permitted. Where required, the app presents Google’s consent message. See the Google Privacy Policy and partner technologies page.
Apple processes in-app purchases. On—Off receives transaction status and stores whether the full game is unlocked. Red Hawk Studios does not receive payment-card details. Apple’s handling of purchase information is governed by the Apple Privacy Policy.
If you contact support@redhawk-studios.com, we receive information you choose to provide, such as your email, device details, and issue description. We use it to respond, resolve your request, and maintain On—Off’s safety and reliability.
Red Hawk Studios does not sell personal information. Information may be processed by Google for advertising, Apple for purchases, and providers that deliver email or website infrastructure. We may disclose information when required by law or to protect users, rights, or security. Support emails are retained only as reasonably necessary, then deleted or anonymized.
On—Off is not directed to children under 13, and we do not knowingly collect personal information directly from children under 13. If you believe a child provided information through support, contact us so we can review and delete it as appropriate.
We use reasonable administrative and technical measures to protect information, but no transmission or storage method is completely secure. Third-party providers may process information in other countries, subject to applicable safeguards and their privacy policies.
Manage available advertising consent choices in the app and remove locally stored game data by deleting the app. To request access to or deletion of support information, email support@redhawk-studios.com with “On-Off Privacy Request” in the subject. We may need to verify your request.
We may update this policy when On—Off, service providers, or legal requirements change. The effective date identifies the latest version, and material changes will be communicated here or in the app when appropriate. For privacy questions, email support@redhawk-studios.com.