GridSum

What it does

I've been obsessed with logic puzzles for years, so I built one. GridSum: a 7×7 grid of numbers. Each row and column has a target sum at the edge. Select which cells add up to it. One solution. Pure logic. No guessing. ✅ Free ✅ Daily puzzle (fresh every day) ✅ 20 puzzle packs if you want more ✅ No forced ads, no pay-to-win If you like Sudoku, Kakuro, or anything that makes your brain work — give it a shot. 👇 iOS: https://apps.apple.com/us/app/gridsum-math-puzzle/id6762402160

Download GridSum - Math Puzzle by Ori Hyams on the App Store. See screenshots, ratings and reviews, user tips, and more apps like GridSum - Math Puzzle.

Puzzle Developer Ori Hyams Language EN English Size 9.6 MB iPhone, iPad A fresh number puzzle every day. Select cells to hit your targets — logic only, no guessing. Easy to learn, hard to put down. Train your mind with GridSum, the satisfying number puzzle game that's easy to learn and hard to master. How it works: Select cells in a 7x7 grid so that each row and column adds up to its target number. Every puzzle has exactly one solution, solvable by pure logic. What's inside: - Daily Puzzle: a fresh challenge every day - Puzzle Packs: hundreds of puzzles across 20 hand-crafted packs - Three difficulty levels: Easy for a quick fix, Medium to sharpen your focus, Hard to truly test your logic -…from apps.apple.com

• 
  Sumplete – A logic puzzle game invented by ChatGPT2023 · sumplete.com · ▲27

  Solve today’s 5x5 Sumplete grid in under 5 minutes. Delete numbers until each row and column hits its target sum. Track streaks, compare stats — play free on any device.

• 
  Gridl – A daily block puzzle gameFeb 2026 · gridlgame.com · ▲5

  Play Gridl, a free daily block puzzle. Drag pieces onto an 8x8 grid, clear rows and columns, and share your score. Same puzzle for everyone, one attempt per day.

• 
  Perfect Grid – my first iOS numbers puzzle game2014 · itunes.apple.com · ▲20

  The latest macOS offers the world’s best way to play — and add to — your collection of music, movies, TV shows, podcasts, audiobooks, and more.

• 
  Grid Rush Game2025 · apps.apple.com · ▲12

  A casual puzzle style iOS mobile game

• CA
  Corral – A Visual Logic Puzzle About Enclosing Numbers2025 · mohammed321.github.io · ▲26

  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…

• 
  LogiquraJul 2026 · logiqura-ads.web.app · ▲4

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

• 
  SimCity, but with Permits▲930

  A free city-building game in your browser. You are the mayor. You know what the city needs. Now get it past the zoning board, the neighbors, the appeals court and the next election.

  Life & fun · 2d ago · permit.petercai.com

• IV
  I've been paying for a rural Tanzanian's education for 10 years▲778

  Life & fun · 14d ago · tanzaniaeducationproject.org

• 
  Bigwords.page – Turn any screen into a sign. The URL is the app▲728

  Turn a phone, tablet or TV into a sign. Type a message and it fills the screen: welcome signs, timers, Wi-Fi passwords and more. No app, no account, free.

  Life & fun · 15d ago · bigwords.page

• 
  Guitoro, a virtual guitar you strum with your keyboard▲573

  Play a free virtual guitar online with your keyboard or by touch. Slow songs down and see every chord, string and strum. Acoustic, classic, electric and bass.

  Life & fun · 9d ago · guitoro.com

• 
  See *almost* any carriers phone settings▲432

  Carrier settings from iPhone, Pixel and Galaxy firmware, decoded and compared: APNs, VoLTE, 5G and Wi-Fi Calling per carrier, and what each build changed.

  Life & fun · 13d ago · carrierexplode.com

• 
  The whole Solar System and every tracked satellite, live in the browser▲407

  Life & fun · 23d ago · space.bl2.net

• 
  Brew ▲900

  Like Claude design for email marketing

  AI · May 2026 · brew.new

• 
  Kilo Code for VS Code▲896

  Parallel agents, diff reviewer, and multi-model comparisons

  Dev tools · May 2026 · kilo.ai

• 
  StoreClaw▲806

  Grow your store profits with agents that know how to sell

  AI · May 2026 · storeclaw.ai

• 
  PollyReach▲795

  Give your agent a real number and voice to make calls.

  AI · May 2026 · pollyreach.ai

• 
  Needle: We Distilled Gemini Tool Calling into a 26M Model▲776

  Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…

  Life & fun · May 2026 · github.com

• 
  Files.md – Open-source alternative to Obsidian▲730

  🌱 Private, quiet space for thinking. Simple app for .md files. - zakirullin/files.md

  Dev tools · May 2026 · github.com