# Sumstone - Math Puzzle Game > Number puzzle game combining six numbers to reach a target using arithmetic. (iPhone/iPad app by Ethan Newman.) - Source: https://appshunter.io/ios/app/sumstone-math-puzzle-game/id6767787936 (this page in markdown: same URL + `.md`) - Developer: [Ethan Newman](https://appshunter.io/developer/1448582809) - Category: Games - Price: Free with in-app purchases - Rating: 5.00/5 from 3 App Store ratings - Age rating: 4+ - Requires: iOS 15.0 · 57 MB - Languages: English - Released: 2026-05-17 - Data updated: 2026-07-06 - Monetization: subscription - User reviews in markdown: https://appshunter.io/ios/app/sumstone-math-puzzle-game/id6767787936/reviews.md ## What is Sumstone? Six numbers. One target. Can you crack it? Sumstone is a number puzzle inspired by the Countdown game show. Combine six numbers using addition, subtraction,multiplication, and division to reach the target, or get as close as you can before time runs out. DAILY PUZZLE A new challenge every day, the same for every player. Difficulty rises through the week, from Easy on Monday to Expert on Sunday. Share your score, compare with friends, and build your streak. PRACTICE MODE Play unlimited puzzles at your own pace across four difficulty levels: Easy, Medium, Hard, and Expert. SCORED ON THREE DIMENSIONS Every round is scored out of 100 based on proximity (how close you got), elegance (fewest operations), and speed (time to solve). Chase the perfect 100. DESIGNED TO FEEL GOOD Satisfying animations, haptic feedback, and a clean minimal interface that stays out of the way. No clutter. PLAY OFFLINE No internet needed. Your puzzles, your stats, your progress are all stored on your device. Track your stats, review your score history, and watch yourself improve over time. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://enewman00.github.io/countdown-game-website/#privacy Terms and Conditions: https://enewman00.github.io/countdown-game-website/#terms ## Key features - Daily puzzles - Practice mode - Offline play - Score tracking - Minimalist interface - Haptic feedback ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Sumstone Pro - Monthly | $1.99 | per month | | Sumstone Pro - Yearly | $17.99 | per year | ## Frequently asked questions about Sumstone ### What is Sumstone? Sumstone is a number puzzle game inspired by the Countdown game show. Players combine six numbers using addition, subtraction, multiplication, and division to reach a target number. ### Does Sumstone have ads? The provided data does not specify if Sumstone contains advertisements. However, it does offer optional subscription plans for 'Sumstone Pro'. ### Can I play Sumstone offline? Yes, Sumstone is designed to be played offline. Your puzzles, stats, and progress are stored directly on your device, allowing you to play without an internet connection. ### How is scoring calculated in Sumstone? Each round in Sumstone is scored out of 100 based on three dimensions: proximity (how close you got to the target), elegance (the fewest operations used), and speed (the time taken to solve the puzzle). ### What are the different game modes in Sumstone? Sumstone features a 'Daily Puzzle' with a new challenge each day that increases in difficulty throughout the week, and a 'Practice Mode' where you can play unlimited puzzles across four difficulty levels: Easy, Medium, Hard, and Expert. ### What are the subscription options for Sumstone Pro? Sumstone Pro offers two subscription plans: a monthly subscription for $1.99 and a yearly subscription for $17.99, providing access to premium features. ### What is the age rating for Sumstone? Sumstone has an age rating of 4+, making it suitable for a wide range of players. ### How often is Sumstone updated? Sumstone was last updated on May 18, 2026, with version 1.1. The release date was May 17, 2026, suggesting recent development activity. ## Version history (last 1 release) ### 1.1 — 2026-05-18 BLITZ MODE Race the clock with the all-new Blitz Mode! Toggle it on for a 30-second countdown timer that adds a thrilling speed challenge to any puzzle. Solve it before time runs out to earn a guaranteed full speed bonus. No penalty for cutting it close. Available for both free play and daily puzzles, with your Blitz results tracked and included in your daily share. Think fast! Minor Enhancements - Text changes to increase readability ## More apps by Ethan Newman - [SproutAwake - Loud Alarm Clock](https://appshunter.io/ios/app/sproutawake-loud-alarm-clock/id6761698232) - [Choreganized: Life Admin](https://appshunter.io/ios/app/choreganized-life-admin/id6765558965) - [Stellar Habits](https://appshunter.io/ios/app/stellar-habits/id6765559935) All apps by Ethan Newman: https://appshunter.io/developer/1448582809 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-06.*