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Alternatives

Products that do what GridSum does

iOS Game, Puzzle, Math

  1. 1FI

    Hello, HN! Figure is a little side project I’ve been working on. Someone described it as Bejeweled meets Wordle. I built the puzzle interface and website in Next.js and React, which was a first for me and overall a great learning experience. The daily puzzle data is queued up in a PostgreSQL table. Another table stores anonymous solve stats. Once a day, a cron job hits a serverless API that promotes the next puzzle as “live” and prompts Next.js to update the prebaked static site with the new data. The game state is managed with Redux and your stats are persisted to localStorage. Framer…

    2022 · figure.game

  2. 2IM

    This is the first iteration of a short game I’m making that tries to interactively explain some of my favorite math questions / ideas. My goal is mostly to get the player curious and not necessarily to explain absolutely everything. There were a lot of fun technical parts to building this: - For implementation reasons, it’s much easier if the lines all have integer intersection points with each other. To do this, when a new line is added I “cheat” by rounding intersections to integers and then splitting the old lines at the intersection into new linds (with potentially different slopes)…

    2024 · rahulilango.com

  3. 3

    A fun little daily brain workout, free in your browser

    2022

  4. 4PG
  5. 5

    A daily online two minute number game, have a quick try now

    2023

  6. 6DF

    Domino fit is a domino tiling puzzler I spent a lot of time both making and playing. Its like sudoku but with a geometric angle, the sum of the dots must match the row and column numbers. It's running on Betsy, the server under my couch, and was made with typescript. I'm proud of it. I hope you give it a shot, and appreciate any thoughts or criticisms!

    2024 · dominofit.isotropic.us

  7. 7IM

    Hey there! I'm the brains behind the math crossword game on my site. This game is all about making math a little more fun – users just drag and drop numbers to fill in the blanks and move on to the next level if they get it right. Let me know if face any issues or have any suggestions! :)

    2024 · scientific.place

  8. 8TL

    I’ve been building a few small games to help kids (and curious adults) build reasoning and logic skills. Think Word Ladder, Prime Hunter, Math Maze ,all in the browser, no installs. Would love feedback or suggestions for new types of puzzles

    2025 · quizmathgenius.com

  9. 9CA

    Hey HN! I just finished building a puzzle game called Corral, and I’d love to share it with you. It’s a logic puzzle played on a rectangular grid, where some of the cells contain numbers. Your goal is to mark which cells are inside a single continuous loop that encloses all the numbers. For each numbered cell, the number tells you how many cells are visible in the four orthogonal directions (up, down, left, right) until a wall of the loop is hit, plus the cell itself. So a cell with a 2 must see one empty cell before hitting the loop boundary. Gameplay is all about deduction: you can mark…

    2025 · mohammed321.github.io

  10. 10IM

    Hey, maker here. After launching a daily word search game, I randomly thought of this math game while driving. Finally got around to making it and I think it turned out pretty cool. It’s a math search game that’s meant to help you practice your quick addition, subtraction, multiplication, and division skills. I’m hoping it’ll help people (even those like me who aren’t big on math) learn and increase their speeds. (There are also some settings you can enable to make the game harder) If you try it out, please let me know if you found it fun, if you have anything you’d like me to add, or if you…

    2024 · worchle.com

  11. 11

    Sudoku, 2048 and a logic puzzle, in one app.

    Jul 2026 · logiqura-ads.web.app

  12. 12

    A hazzle free sudoku experience for iOS

    Apr 2026 · apps.apple.com

  13. 13DA

    Hello HN! We're Rory and Chris, and we've made a game called Dozenal[0], a grid-based number puzzle game where the objective is to use all the tiles on the board to create totals of 12 (hence the name). We think the mechanic is quite unique, although keen to hear if people know of similar games! You essentially drag tiles across the board, and the distance between two numbers decides the arithmetic operation when they connect to each other: zero spaces is addition, one space is subtraction, two spaces is multiplication: e.g. 5 → 4 = 9 5 → _ → 4 = 1 5 → _ → _ → 4 = 20 We've spent the past…

    Jul 2026 · dozenal.game

  14. 14IB

    Hi, I built Equatile, a logic-based puzzle game where you arrange number tiles on a grid to make every row and column equal their target values. It's built using Expo and is available for free on iOS, Android, and the Web. It's a game I've had in mind for almost 10 years now but never got to actually develop, until I came across Expo which made the process incredibly easy. I might open source the code on GitHub. I hope you enjoy playing it!

    2025 · equatile.com

  15. 15IM

    I've been playing with this for quite some time and I think it's finally ready for public consumption. All feedback welcome.

    2025 · madmonk13.github.io

  16. 16IM

    2024 · triword.net

  17. 17FA

    Hi everyone, I built FuseCells, a minimalistic logic puzzle game where every level is handcrafted (no procedural generation). It started as a personal challenge to design a clean rule-set and scale it to thousands of puzzles without losing difficulty balance. What’s unique: • 2,500 handcrafted levels across multiple grid sizes • Deterministic logic — no guessing required • A rule system inspired by constraint-solving and path-finding concepts • Daily challenges and global progress tracking • Fully built as a solo dev project Technical notes for those curious: • Level generation tools I wrote…

    Dec 2025 · apps.apple.com

  18. 18
    Twenty84

    Match tiles. Get to Twenty.

    2015

  19. 19
    Sum 2.073

    How fast can you add?

    2019

  20. 20SA
  21. 21

    Twelve FREE daily logic puzzles with 400+ achievements!

    Jul 2026 · dailygrid.app

  22. 22

    Free daily logic grid puzzle with encrypted clues.

    Mar 2026

  23. 23
    Mosaic3

    A logic puzzle game designed for everyone

    Jun 2026 · mosaic-game.uk

  24. 24GA

    Feb 2026 · gridlgame.com

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