Tideline: Light Puzzle
Steer light, wake the harbor
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Tideline is a calm puzzle game about steering colored light.
A sleepy harbor has gone dark. Turn mirrors, place glass, and send each beam to the lighthouse, lamp, or buoy that is waiting for its color. When the light arrives, the harbor wakes up.
SAIL ISLAND TO ISLAND
Every level is an island on your sea chart. Solve one and your boat sails on to the next. Reach the end of a place and the storm over the next one parts.
A NEW IDEA IN EVERY PLACE
Mirrors in the Harbor, stones you place to shield the Breakwater, splitters in the Channel, filters in the Glasshouse, prisms at the Lighthouse, combiners in the Estuary, placing your own pieces in the Workshop, and everything at once on the Open Sea. The Harbor Master explains each new idea the first time you meet it.
DAILY LIGHT
One new puzzle every day, the same for everyone. Beat par, keep your streak, and share your result without spoilers.
FRIENDS ON THE WATER
Seals lounge on the rocks, puffins stand on the pier, otters float in the estuary, a crab scuttles on the sandbar, and now and then a whale comes up to say hello.
MADE FOR ONE THUMB
Tap to turn and drag to place. No timers and no ads.
FIVE LIVES
The Harbor is yours to learn in, free. After that, each level gives you a few moves beyond par. Run out and you lose one of five lives, and they come back one every twenty minutes.
PEARLS
Earn Pearls as you solve levels and play the Daily Light. Spend them on an undo that gives the move back or a hint, buy a few more moves when the tide runs out, or save up for a new board theme.
• 120 hand-picked levels across eight places
• Three stars for solving at or under par
• Game Center: a Daily Light leaderboard, a stars leaderboard, and 16 achievements
• Colorblind mode adds patterns and shapes to every color
• Drawn entirely in code, with gentle synthesized sound and haptics
Optional in-app purchases: Pearl packs, board themes, the Deep Water chapter pack, and a Supporter bundle. The Daily Light never uses hints, lives, or anything paid.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Two new chapter packs: The Reef and The Ice Coast. Or get all three packs, Deep Water included, in one bundle.
- A tide chest washes up every day with free Pearls.
- Optional videos: watch one for a free hint, a life, 5 more moves, or double Pearls. They only play when you tap an offer, and never in Daily Light.
- Keeper's Pass: unlimited lives, every video reward without the video, and double Pearls from levels.
- Daily Light Archive: play any day from the past year.
- Reminders when your lives are full and when today's Daily Light is waiting. Turn them off in Settings.
- The Glasshouse is rebuilt: every filter now changes the light, and light always comes out the color of the glass. Filter levels in other chapters were rebuilt the same way.
The developer, Intuitive Workz, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Intuitive Workz Inc.
- Size
- 7.6 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Keeper's Pass $5.99
- The Ice Coast $1.99
- Daily Light Archive $2.99
- Starter Chest $1.99
- All Chapter Packs $3.99
- The Reef $1.99
- 1500 Pearls $9.99
- 600 Pearls $4.99
- 100 Pearls $0.99
- Ember Theme $0.99
- Copyright
- © 2026 Intuitive Workz Inc.

