A circuit puzzle for iPhone & iPad

Find the move.
Light the board.

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.

150Puzzles
3Board sizes
Aha moments
On-Off level progression screen
On-Off circuit puzzle gameplay

How it works

A puzzle that
clicks.

The goal is clear. The path is yours to discover.

01

One tap. Five changes.

Switch one bulb and its neighbors flip with it. Every move reshapes the board.

02

150 handcrafted puzzles

Build momentum across three puzzle sizes, from quick 3×3 sparks to deeper challenges.

03

Master every circuit

Solve in fewer moves, collect more stars, and light your way through every level.

On-Off introduction explaining how to light the circuit

Easy to learn

Every tap changes
everything.

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

Hit a snag?
Let’s fix it.

Tell us what happened and we’ll open a ready-to-send email to the Red Hawk Studios support team.

support@redhawk-studios.com

This uses your device’s email app. Please do not include passwords or payment information.

Your information

Privacy Policy.

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.

Information stored on your device

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.

Advertising and diagnostics

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.

In-app purchases

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.

Support communications

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.

Sharing, sale, and retention

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.

Children’s privacy

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.

Security and international processing

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.

Your choices and requests

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.

Policy changes and contact

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.

Ready to light the board?

Download On—Off for iPhone and iPad.

Download on the App Store