Daily · Suguru
Today
12-day streak. Not solved yet.
03 — Puzzles
ThinkGrid Logic puzzles, offline and ad-free
Classic logic puzzles in one calm app. No ad breaking your concentration, no lives running out, no account. Just a grid, a rule and the satisfaction of the moment it clicks.
- Free to download
- No ads
- No trackers
- Works fully offline
Inside the app
This is what ThinkGrid looks like.
Real screens from the app: your daily puzzles, the game types, the difficulty tiers and a game in progress.
The games
One app, a different kind of thinking each time.
Every puzzle type has its own logic and its own pace. Pick whatever suits your head today — quick and visual, or slow and merciless. The list keeps growing: new types are added regularly.
01
Suguru
Fill each region with 1 to N so that equal numbers never touch — not even diagonally.
02
Star Battle
Place stars so that every row, column and region holds exactly the right count.
03
Masyu
Draw one closed loop through every circle, following strict turn and straight rules.
04
Nonogram
Shade cells so they match the clue sequences for every row and column.
05
Hashi
Connect islands with bridges matching their numbers until everything forms one graph.
06
Akari
Place bulbs that light the whole board without any two bulbs seeing each other.
07
Kakuro
Fill white cells with 1–9 so each run sums to its clue, with no repeats.
08
Fillomino
Split the grid into regions where every cell shows the size of its own region.
09
Tents
Pair each tree with an adjacent tent and keep the row and column counts right.
10
Bomb Digger
Work out where the bombs are from the numbers and clear every safe cell without hitting one.
The experience
Built to make you think, not to hold you hostage.
Puzzle apps usually monetise your impatience: ads after every solve, hints you have to buy, lives that run out. ThinkGrid does none of that.
- Daily
-
One daily puzzle per game
Every game has its own daily puzzle, refreshing at midnight in your timezone. Do one or do them all. Streaks are tracked per game type, so a missed day of Kakuro doesn't cost you your Nonogram streak.
- Six tiers
-
From Easy to Grandmaster
Every game has six difficulty tiers: Easy, Medium, Hard, Expert, Master and Grandmaster. The grid grows with them — Light Up runs from 5×5 up to 10×10. The first four tiers are free and more than enough to keep you busy; the two hardest belong to Plus.
- No penalty
-
Unlimited hints, always free
Stuck? Tap the lightbulb. As often as you like, without paying and without a wait. A wrong move is undone with the undo arrow. Nothing is at stake except your own time.
- Progress
-
XP and levels that sell you nothing
Every solve earns XP — faster and with fewer hints earns more. Levels unlock profile milestones. They give no in-game advantage; they exist so you can look back at what you've done.
- Calm
-
Themes that don't shout
System, light and dark are free. Plus adds Paper, Midnight, Blossom, Cobalt, Aurora, Dusk and OLED among others, plus limited-time seasonal ones. All designed to look at for a long time without tiring your eyes.
Privacy
Zero trackers. Full stop.
ThinkGrid uses no ads, no analytics, no tracking SDKs and no accounts, and asks for no access to location, camera, microphone or contacts. Your progress, times, streaks and settings live in your device's local storage — we don't run a server that receives that data.
| Category | Games · puzzle |
|---|---|
| Platform | Android (Google Play) and iOS (App Store) |
| Package ID | nl.deappmakers.thinkgrid |
| New puzzle types | Added regularly |
| Difficulty tiers | 6 per game |
| Daily puzzles | 1 per game, per day |
| Hints | Unlimited and free |
| Internet required | No — works fully offline |
| Ads | None |
| Account | Not required |
Frequently asked
One more thing.
Question not answered here? Email support@deappmakers.nl — usually a reply within a day or two.
How do I get a hint?
Tap the lightbulb icon during a puzzle. Hints are always free and unlimited. A mistake is undone with the undo arrow, as often as you need — there are no penalties.
What is ThinkGrid Plus and what does it cost?
Plus is an optional subscription that unlocks Master and Grandmaster difficulties, the full daily archive, extra themes, cross-device sync and detailed solving insights. The free tier is complete and stays free. Current pricing is shown in the app.
How do I restore a previous Plus purchase?
Go to Settings → Restore Purchases. If you bought Plus on another device using the same Google Play or App Store account, it restores automatically.
My daily streak reset. What happened?
Streaks reset if you miss a calendar day in your local timezone. They're tracked per game type, so you can have a long Suguru streak and a short Kakuro one at the same time.
The app isn't loading puzzles.
ThinkGrid works fully offline, so this is rarely a connection issue. Close the app completely and open it again. If it persists, email support@deappmakers.nl with your device and Android or iOS version.
How do I cancel Plus?
On Android: Google Play → profile → Payments and subscriptions → Subscriptions → ThinkGrid Plus → Cancel. On iPhone or iPad: Settings → Apple Account → Subscriptions → ThinkGrid Plus → Cancel. You keep access until the end of the paid period.
Can I suggest a new puzzle type?
Please do. Email your suggestion to support@deappmakers.nl — player suggestions genuinely shape what we build next.
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