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Tapolo is a logic puzzle game for iPhone. Each board holds lights that point in one direction. Tap them in the right order and their glowing tubes fill the whole board.

Tapolo is available only on the App Store. There is no Android, computer or browser version.

Tap a light. Its tube runs in the direction of the arrow until it reaches the edge of the board, a lit tube or another light. Light up every tile to solve the board. Tapping in the wrong order costs a heart.

The full rules, with pictures, are on How to play.

Levels unlock one after another: solve a board to open the next. Each level awards up to three stars — three for a clean solve, two for one slip, one otherwise. A mistake or a hint counts as a slip.

You can replay any level you have already solved to improve your stars.

Each board gives you three hearts. If they run out, you can give up the level, which costs one of your five lives. Lives come back over time.

Daily is one puzzle for each calendar day, separate from the regular levels. Open the Daily tab to play today’s board.

Solving Daily on consecutive days builds a streak. The Daily screen shows your current streak, your best streak and a calendar of the days you have solved. After solving, you can share a short result with the puzzle number, your mistakes, your time and your streak. It does not reveal the solution.

Tap the hint button during a level and Tapolo points to a light you can tap next while keeping the board solvable. Each hint uses one from your hint count, which is shown on the button.

A hint counts as a slip, so a level solved with a hint earns at most two stars.

Open Settings › Skin and choose a skin you own. The board changes straight away. Skins change only the look; every level plays the same in all of them.

Neon comes with the game. Skins you do not own yet are marked as locked.

Premium is a yearly subscription. While it is active, you get:

• no forced full-screen ads;
• every skin, including the ones we add later;
• 30 hints, once per Apple Account, added when the first paid year begins.

Premium may start with a free trial. You are not charged during the trial, and the 30 hints arrive with the first paid period, not at the start of the trial. If you do not want to continue, cancel at least 24 hours before the trial ends. The price and the length of the trial are shown in the App Store before you subscribe.

Subscriptions are managed by Apple. You can cancel in either place:

• in iOS Settings, tap your name, then Subscriptions, and choose Tapolo;
• in Tapolo, open the Shop and tap Manage subscription .

Cancel at least 24 hours before the end of the current period to stop the next renewal. Premium stays active until the period you have paid for ends. After that, full-screen ads come back and skins unlocked only by Premium are locked again. One-time purchases, such as Remove Ads and skins you bought, and hints you have already received stay.

Purchases belong to the Apple Account used to buy them. On a new or reset iPhone:

• Sign in to the App Store with the same Apple Account you used to buy.
• Open Tapolo.
• Tap Restore Purchases in Settings or in the Shop .

Restoring brings back Premium, Remove Ads and the skins you bought. Items that are used up, such as hints and lives, are not restored by the App Store.

Try these steps in order:

• Check that you are signed in to the App Store with the Apple Account you used to buy the skin.
• Make sure your iPhone is online, then tap Restore Purchases in Settings or in the Shop .
• If the skin came with Premium, check in the Shop that Premium is still active.
• Update Tapolo to the latest version from the App Store.
• Open Settings › Skin again.

If the skin is still missing, email pj.dev.apps@gmail.com with the date of the purchase and, if you have it, the order ID from Apple’s receipt email. Never send your password or card details.

Ads keep Tapolo free to play. A full-screen ad may appear after you complete a level, but never before level 6, never in the first five minutes of your first session, never in Daily, and at most once every three levels and once every two minutes. There are no banner ads.

To turn the full-screen ads off, buy Remove Ads or subscribe to Premium in the Shop .

Rewarded ads, which give you a hint, extra hearts, a life or a skin trial, are always optional. They appear only when you choose to watch one.

After you complete your second level, iOS asks whether Tapolo may track your activity across other companies’ apps and websites. If you allow it, Google can use your device’s advertising identifier to show you more relevant ads. If you do not, you see the same number of ads, just less tailored.

You can change your answer at any time in iOS Settings › Privacy & Security › Tracking. In the European Economic Area, the United Kingdom and Switzerland, Google’s consent form also asks for your choices before the first ad; the Privacy Policy explains how to change them.

Tapolo follows your iPhone’s language by default. To choose another, open Settings › Language and pick one of the eleven languages. Choose System to follow your iPhone again.

This website has its own language menu at the top of every page.

Yes. Text follows the text size you set on your iPhone, and screens rearrange to fit larger text.

With VoiceOver, the board tells you how many tiles are lit, and each light is announced with its direction, its column and row, and how many tiles it will light.

Direction is always shown by an arrow, not by colour alone. Tapolo also has light and dark themes.

Open Settings › Send feedback in Tapolo, or email pj.dev.apps@gmail.com . Please include the details listed under What to include.

Tapolo has no accounts. Your progress and settings are stored on your iPhone, and deleting the app removes them from the device.

To stop ads from Google being linked to your device, turn off tracking for Tapolo in iOS Settings › Privacy & Security › Tracking.

To have your purchase data deleted at RevenueCat, write to pj.dev.apps@gmail.com with the date of the purchase.

If you have emailed us, write to pj.dev.apps@gmail.com and we will delete your messages. The Privacy Policy explains what data exists and how to remove it.