Comparison

ThinkGrid vs Sundown

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

ThinkGrid

Features
Read full description

Eleven logic puzzles in one app. No ads, no timers, no energy bars — just a grid and the part of your brain that likes being asked something. THE PUZZLES Suguru — fill each cage with unique numbers Star Battle — place stars so no two touch Masyu — loop through black and white pearls Nonogram — reveal the picture from row and column clues Color Link — connect matching colors and cover the board Hashi — connect islands with bridges Light Up — place bulbs to light every white cell Kakuro — fill runs with digits that sum to each clue Fillomino — fill the grid so each number group has the right size Tents — pitch a tent next to every tree Bomb Digger — deduce where every mine is hidden Every puzzle is generated with a unique solution and is solvable by logic alone. You never have to guess. A NEW DAILY IN EVERY GAME Eleven daily puzzles, one per game, every day. Keep a streak, track which games you return to, and see your solving habits build up over the months. SIX DIFFICULTIES Easy, Medium, Hard, Expert, Master, Grandmaster. Easy is a coffee break. Grandmaster is not. LEARN ANY OF THEM Each game has a step-by-step guide that plays out on a real board, one move at a time, explaining why each move is the only one that works. No prior knowledge needed for any of the eleven. NO ADS, EVER The free tier is complete: every game, every daily, four difficulty tiers. There is no advertising anywhere in ThinkGrid and there never will be. THINKGRID PLUS For players who want the deep end: - Master and Grandmaster difficulty across every game - Daily archive — replay any past daily, back to launch - Seven extra themes: Paper, Midnight, Dusk, OLED, Blossom, Cobalt and Aurora - Solving insights: heatmaps, technique breakdowns, a monthly summary Yearly with a 7-day free trial, or a one-time payment for lifetime access. After the 7-day free trial, payment is charged to your Apple ID account. The yearly subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period. Manage or cancel it in your App Store account settings. Available in English, Dutch and Spanish. Your progress stays on your device, and you can back it up and restore it yourself. Privacy policy: https://deappmakers.nl/legal/thinkgrid-privacy/ Terms of use: https://deappmakers.nl/legal/thinkgrid-terms/

About

Sundown

A logic puzzle game where you fill grids with suns and moons using pure deduction. Offers daily challenges, adjustable grid sizes and difficulty, and hints to guide your problem-solving. Track your progress and achievements as you master the puzzles.

Highlights
  • Pure logic deduction puzzles
  • Daily Challenge puzzles
  • Multiple grid sizes (6x6 to 12x12)
  • Adjustable difficulty levels
  • Step-by-step deduction hints
  • Puzzle sharing via codes
  • Stats, streaks, and achievements
Features
Read full description

Sundown is a clean, challenging logic puzzle game about filling a grid with suns and moons. Every puzzle has one solution and can be solved by pure deduction. No guessing, no trial and error. Fill each 6x6, 8x8, 10x10, or 12x12 grid by following simple logic rules: each row and column needs an equal number of suns and moons, no three matching symbols can appear in a row, and edge clues show when neighboring cells must match or differ. Play a fresh Daily Challenge every day, choose new puzzles by size and difficulty, or share a puzzle code so friends can solve the same board. Sundown is great for fans of logic games, number puzzles, grid puzzles, brain training, Sudoku, Tango, binary puzzles, and deduction games. Stuck? Step-by-step hints teach the next deduction without immediately spoiling the answer. Track your stats, solve streak, best times, and achievements as you improve. Sundown is free to play with optional rewarded ads. Premium is a one-time purchase that unlocks unlimited play, Expert puzzles, premium themes, custom sun and moon symbols, and removes ads. No subscription. Features: • Pure logic puzzles with one solution • Daily Challenge puzzle • 6x6, 8x8, 10x10, and 12x12 grids • Easy, Medium, Hard, and Expert difficulty • Step-by-step hints that teach deduction • Puzzle codes for sharing boards • Stats, streaks, best times, and achievements • Streak reminders and freeze safeguards • Premium themes and custom symbols • No account required

Screenshots

ThinkGrid4 screens
Sundown4 screens

Verdict

The call

The clearest difference is ads: ThinkGrid at none against Sundown's shown. Sundown's advantage is update cadence (every 10 days vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ThinkGrid sells 5 in-app purchases, starting at $17.99 per year and Sundown sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

ThinkGrid ships an update every 3 months, Sundown every 10 days. The most recent releases landed on October 17, 2026 and October 18, 2026 respectively.

Scorecard2 real differences · 8 level
ThinkGrid versus Sundown: the parameters behind the verdict, then further details
ParameterThinkGridSundown
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 3 monthsEvery 10 days — better
AdsNo — betterYes
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size40 MB36 MB
Age rating4+4+
DeveloperDe AppmakersNicholas Coleman

In-app purchases

5 purchases

ThinkGrid

Subscriptions1
  • ThinkGrid Plus Yearly$17.991 Year
One-time4
  • ThinkGrid Tip Espresso$1.99
  • ThinkGrid Tip Latte$3.99
  • ThinkGrid Tip Pot$8.99
Show 1 more
  • ThinkGrid Plus Lifetime$29.99
1 purchases

Sundown

One-time1
  • Unlimited Play$2.99

Questions

Is ThinkGrid free?
ThinkGrid is free to download, with in-app purchases available.
Is Sundown free?
Sundown is free to download, with in-app purchases available.
Do ThinkGrid or Sundown have ads?
Sundown shows ads; ThinkGrid does not.
Which is updated more often, ThinkGrid or Sundown?
ThinkGrid ships an update every 3 months, and Sundown every 10 days. Most recently, ThinkGrid was updated on October 17, 2026 and Sundown on October 18, 2026.

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