# Summation

> Puzzle

Canonical page: [https://chrome-stats.com/d/id1219879009](https://chrome-stats.com/d/id1219879009)

## Overview

- **ID:** `id1219879009`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Lemon Jam Technology Co., Ltd.
- **Category:** Puzzle
- **Rating:** 4.20 / 5 (58 ratings)
- **Version:** 1.2.1
- **Last updated:** 2018-04-28
- **First published:** 2017-05-09
- **Size:** 110 MB
- **Data as of:** 2026-09-05
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/summation/id1219879009)
- **Website:** [http://www.lemon-jam.com](http://www.lemon-jam.com/)

## Description

Summation is a minimalist Chrome extension game where you rearrange numbers to solve puzzles. It starts simple and grows toward level 100, delivering a brain workout in a clean, distraction-free interface.

Key features include endless levels, unlockable themes, and upcoming game modes. Get in touch: game@lemon-jam.com, Twitter: twitter.com/lemonjamstudio, Facebook: facebook.com/lemonjamstudio.

## Rankings

- #171,521 — Overall

## Review summary

Players enjoy the calming, brain‑teasing puzzle and offline play, with varied modes and a flexible hint system. However, recurring problems include heavy ads and stability glitches (crashes/freezes) and occasional hints/UI bugs, which significantly affect the experience for multiple users.

### Pros

- Calming, engaging puzzle that feels unique and brain‑teasing.
- Multiple modes (Endless, Challenge, Timed) offer varied pacing and challenge.
- Playable offline without WiFi.
- Flexible hint system (option to earn clues by watching ads or buy clues) that adds accessibility without forcing a single path.

### Cons

- Excessive, intrusive ads (full-screen video ads, including after leaving the app) that persist even for some users who paid to remove them.
- Stability issues like crashes and freezes (startup crashes, blue dot crash) disrupting gameplay.

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1219879009)