--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Number Sums - Numbers Game" developer_entity: "Easybrain Ltd" bundle_id: "com.easybrain.number.sums.puzzle" app_store_id: "6449427809" category: "Games" primary_platform: "ios" primary_monetization: "Freemium" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2025-11-07" report_date: "2026-07-30" last_verified: "2026-07-30T00:00:00.000Z" report_version: "1.17.1" total_reviews: 137478 overall_rating: 4.4 sentiment: "Frustrated" sentiment_score: 25 confidence: "high" confidence_score: 0.8 top_praise_theme: "Stimulating logic puzzles provide a rewarding mental workout for players who enjoy number-based challenges" top_complaint_theme: "Excessive ad frequency during active gameplay disrupts concentration and makes the experience feel unplayable" review_sample_size: 142 total_review_count: 142 analyzed_review_count: 60 data_age_days: 18 momentum_velocity: "maintenance" intelligence_version: 4 nemesis: "Killer Sudoku by Beetles Studio" competitor_count: 7 tags: ["games", "freemium", "frustrated sentiment", "mobile app", "app review", "app analysis", "adults", "seeking", "mental"] canonical_url: "https://marlvel.ai/apps/com-easybrain-number-sums-puzzle" license: "CC-BY-NC 4.0" content_version: "v2" --- # Number Sums - Numbers Game Intelligence Report ## TL;DR {#tldr} - **Category**: Games · Freemium - **Signal**: Rating 4.39 · Sentiment Frustrated - **Recent focus**: Excessive ad frequency during active gameplay disrupts concentration and makes the experience feel unplayable (top complaint) · Stimulating logic puzzles provide a rewarding mental workout for players who enjoy number-based challenges (top praise) > **TL;DR:** Number Sums - Numbers Game is a games app by Easybrain Ltd, rated 4.39/5 by 137.5K users, with Frustrated user sentiment (25/100), available on iOS & Android. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Number Sums - Numbers Game faces Frustrated user sentiment (4.39/5 from 137.5K reviews), with users reporting excessive ad frequency during active gameplay disrupts concentration and makes the experience feel unplayable as the primary concern. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.39/5 (137.5K reviews) | | **User Mood** | Frustrated | | **Category** | Games | | **Developer** | Easybrain Ltd | | **Pricing** | Freemium | | **Platforms** | iOS & Android | | **Confidence** | High (0.8/1.0) | | **Data Age** | 18d | ## Metadata & Market Performance - **Publisher:** Easybrain Ltd - **Category:** Games - **Target Audience:** Adults seeking mental math practice and logic-based brain training. - **Platforms:** iOS & Android - **Version Reviewed:** 1.11.0 - **Report Date:** 2026-07-30 - **Signal Count:** 142 reviews analyzed - **Confidence:** High (0.8/1.0) - **App Store ID (iOS):** 6449427809 - **Bundle ID:** com.easybrain.number.sums.puzzle - **Google Play ID:** com.easybrain.number.sums.puzzle - **Performance Trend:** Declining - **Data Window:** Analysis based on signals collected up to 2026-07-30 - **Short Description:** Number puzzles and math games for brain training. Test your arithmetic skills! ## Executive Snapshot **What it is:** Number Sums is a grid-based math puzzle game for adults, offering arithmetic challenges across varying board sizes on iOS and Android. **Why users hire it:** The app removes the friction of finding structured mental math practice, serving users who want a quick, logic-based brain workout without complex narratives. ## App DNA (Features & Intent) - **[Standard] Math Puzzle Logic:** Grid-based number puzzles requiring row, column, and region sums to match target clues. - **[Standard] Toggle Mode:** Switching mechanism between circling correct numbers and erasing incorrect ones. - **[Standard] Difficulty Scaling:** Board sizes ranging from 3x3 to 10x10 with varying complexity. ## Market Position {#market-position} Number Sums maintains a stable presence in the puzzle category, though its monetization strategy is currently misaligned with user expectations. The high price for ad-free access creates a barrier that limits the conversion of casual players. ## Monetization Strategy - **Model:** Freemium - **Tiers:** Free with ads - **Analysis:** Monetization relies on ad-supported free play, which users report is currently too aggressive. ## 🔴 User Sentiment (High Confidence: 60 of 142 reviews analyzed) {#user-sentiment} - **Overall Rating:** 4.39/5 - **Platform Split:** iOS 4.6/5 (29.3K ratings) | Android 4.3/5 (108.2K ratings) - **Overall Sentiment:** Frustrated - **Note:** The 4.39/5 store rating reflects cumulative history, while the Frustrated sentiment reflects recent user reviews analyzed by our AI pipeline. ### Top Praises - **Stimulating logic puzzles provide a rewarding mental workout for players who enjoy number-based challenges** ### Top Complaints (Impact Areas) - **Excessive ad frequency during active gameplay disrupts concentration and makes the experience feel unplayable** ## SWOT Analysis {#swot} **Core Strengths:** - Minimalistic logic mechanics provide a high-value mental workout **Growth Levers:** - Zoom feature for larger grids improves accessibility ## Recent Changes (v3 → v4) {#recent-changes} Development momentum has stalled into an eight-month maintenance cycle, causing the outlook to shift from stable to declining as unresolved ad-frequency and technical complaints persist. **Overall trend**: Declining **Compared at**: 2026-07-30 ### High-impact changes - **[Declined] Development Stagnation** (positioning) - **[Declined] Outlook Downgrade** (sentiment) ### Medium-impact changes - **[Added] Accessibility Opportunity** (swot) - **[Removed] Feature Gap List Cleared** (features) ## Rivals Landscape {#rivals} > Competitive positioning identified by AI analysis of app features, category, and market signals. ### Number Sums - Numbers Game vs Killer Sudoku by Beetles Studio - **Killer Sudoku by Beetles Studio** by Beetles Studio: The most direct competitor in the high-volume math-logic space, combining arithmetic sum constraints with grid-based logic to target the exact same 'brain training' demographic. - **Key differences:** - Combines classic Sudoku constraints with the sum-based 'cages' mechanic - More complex puzzle depth requiring both elimination and arithmetic - Highly optimized ad-reward loop that typically sees better user retention in the logic sub-genre ### Contenders (Strong Challengers) - **Math Crossword - Number Puzzle** by Guru Puzzle Game: A top-tier arithmetic puzzle game that uses crossword-style grids to test addition, subtraction, and multiplication skills. - Includes multiple operators (multiplication/division) whereas Number Sums focuses on addition - Crossword-style layout provides a different visual logic flow - **Kakuro Logic Puzzles** by Conceptis Ltd: The digital gold standard for the 'Cross Sums' genre that Number Sums is based on, offering high-fidelity, hand-crafted puzzles. - Focuses on professional-grade, hand-crafted puzzles rather than algorithmically generated ones - Advanced features like 'pencil marks' and error highlighting for serious enthusiasts - **Sumple** by Thinh Nguyen: A mechanically identical competitor where users must select numbers in a grid to match target sums on the edges. - Extremely lightweight app size - Offers a 'dark mode' that is highly praised by its niche user base ### Peers (What They Do Better) - **[Woodoku](https://marlvel.ai/apps/woodoku-wood-block-puzzles)** by Tripledot Studios: While a block puzzle, it shares a near-identical user demographic looking for minimalist, logic-based stress relief. - Spatial reasoning focus rather than arithmetic - Tactile 'wood' aesthetic compared to Number Sums' digital minimalist look - **Sudoku - Classic Sudoku Puzzle** by Beetles Studio: The primary alternative for users seeking number-based logic without the specific addition mechanics. - Pure logic/elimination without math calculations - Massive global community and competitive leaderboards ### New Kids on the Block (What's Innovative) - **Sumplete** by Lukas Hernandez: A rising threat based on the viral AI-generated puzzle concept (originally designed by ChatGPT), featuring the exact same grid-sum mechanics. - Viral origin story attracts a tech-savvy audience - Extremely clean, modern interface with zero legacy bloat ## What's New - **Latest (v1.17.1, 8 months ago):** General performance and stability improvements. ## App Momentum (Maintenance) {#momentum} - Ships only stability and performance improvements. - No new feature builds in eight months. > **Cadence:** 2 total versions · 0 majors in last 6 months · 264 days since last update · 16 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} Number Sums - Numbers Game is a games app that is free with in-app purchases. With a 4.39/5 rating from 137.5K reviews, it draws more critical themes in recent reviews than its store average suggests. > **Bottom Line:** Aggressive ad placement during active play is invalidating the core value of the mental-math mechanic, and a pivot to a more balanced ad-load would unlock the retention potential of the existing user base. **Best for:** Adults seeking mental math practice and logic-based brain training. ### PM Action Plan (Next Best Moves) - [ ] [PIVOT] Cut ad frequency during active puzzle sessions because it is the #1 complaint driving churn → improve retention. ### Outlook: Declining The casual puzzle market is consolidating around titles with active live-ops and balanced monetization. Number Sums' current maintenance-mode cadence and aggressive ad-load leave it exposed to churn, as the core mental-math value is currently overshadowed by user frustration. - 🔴 Excessive ad frequency disrupts active gameplay, leading to mass uninstalls and a negative sentiment trend. - 🔴 The lack of feature updates for eight months leaves the app vulnerable to more active, live-ops-driven puzzle competitors. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.39/5 | | Total Reviews | 137.5K | | Sentiment | Frustrated (25/100) | | Confidence | High | | Pricing Model | Freemium | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Trend | Declining | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Number Sums - Numbers Game** (this app) | 4.39/5 | Frustrated | Easybrain Ltd | | [Woodoku - Wood Block Puzzles](https://marlvel.ai/apps/woodoku-wood-block-puzzles) | 4.7/5 | Mixed | Tripledot Studios | | [Royal Match](https://marlvel.ai/apps/royal-match) | 4.7/5 | n/a | Dream Games | | [Archero](https://marlvel.ai/apps/archero) | 4.5/5 | N/A | HABBY | | [Bejeweled Blitz](https://marlvel.ai/apps/bejeweled-blitz) | 3.3/5 | n/a | PopCap | | [Brawl Stars](https://marlvel.ai/apps/brawl-stars) | 4.5/5 | n/a | Supercell | ## Company Profile - **Developer:** Easybrain Ltd - **Website:** [https://easybrain.com](https://easybrain.com) - **Social:** [Instagram](https://www.instagram.com/easybrainteam) · [Facebook](https://www.facebook.com/Easybrain-168470230583950) · [YouTube](https://www.youtube.com/watch) · [LinkedIn](https://www.linkedin.com/company/27103989) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/number-sums-numbers-game/id6449427809?uo=2) - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=com.easybrain.number.sums.puzzle&hl=en&gl=us) - **Dev Site:** [Official Website](https://easybrain.com) - **Sources:** Developer website content, App store metadata, User reviews. ## Related Intel Reports - [*Woodoku - Wood Block Puzzles*](https://marlvel.ai/apps/woodoku-wood-block-puzzles) (Tripledot Studios) · 4.7/5 Rating - [*Royal Match*](https://marlvel.ai/apps/royal-match) (Dream Games) · 4.7/5 Rating - [*Archero*](https://marlvel.ai/apps/archero) (HABBY) · 4.5/5 Rating - [*Bejeweled Blitz*](https://marlvel.ai/apps/bejeweled-blitz) (PopCap) · 3.3/5 Rating - [*Brawl Stars*](https://marlvel.ai/apps/brawl-stars) (Supercell) · 4.5/5 Rating - [*Hole.io*](https://marlvel.ai/apps/hole-io) (Voodoo) · 3.8/5 Rating - [*Partymasters - Fun Idle Game*](https://marlvel.ai/apps/partymasters-fun-idle-game) (AI Games FZ) · 4.5/5 Rating | Positive Sentiment - [*Stumble Guys*](https://marlvel.ai/apps/stumble-guys) (Scopely, Inc.) · 4.6/5 Rating - [*Temple Run*](https://marlvel.ai/apps/temple-run) (Imangi Studios, LLC) · 4.3/5 Rating - [*YouRiding - Surf and Bodyboard*](https://marlvel.ai/apps/youriding-surf-and-bodyboard) (BoardScore, Inc.) · 4.2/5 Rating ## Frequently Asked Questions {#faq} ### Is Number Sums suitable for casual players? While the puzzles are designed for mental math practice, current user reviews suggest that the high frequency of ads and the cost of the ad-free version make it less ideal for casual players on a budget. ### Does Number Sums have intrusive ads? Yes, many users report that ads appear mid-puzzle multiple times per session, which disrupts the gameplay experience and breaks concentration. ### What are some alternatives to Number Sums? If you enjoy Number Sums but want a different experience, games like Number Match or Kakuro are often cited as similar logic-based puzzle alternatives. ## Methodology {#methodology} This report was generated by Marlvel.ai's 5-stage AI intelligence pipeline: 1. **Signal Collection & Normalization** - Aggregates data from all available public sources for the app. Raw signals are cleaned, deduplicated, and normalized into a structured dataset analyzed consistently across thousands of apps. 2. **Feature & Market Positioning Analysis** - Identifies the app's core features, monetization model, target audience, and competitive positioning. Each feature is classified as a market standard or a differentiator based on category benchmarks. 3. **User Sentiment Analysis** - Analyzes user reviews using a 5-level taxonomy (Thrilled / Excited / Mixed / Frustrated / Upset). Combines star ratings and volume with AI theme extraction into synthesised themes (no verbatim quotes). 4. **Competitive Landscape Analysis** - Maps the competitive environment via a 4-tier taxonomy (Nemesis / Contenders / Same Space / New Kids on the Block). Prioritizes same sub-genre over broad category. 5. **Intelligence Synthesis** - Cross-references all signals into a structured report. Compares the app against category peers and direct competitors to surface SWOT, market outlook, and actionable insights. - **Confidence Score:** 0.8/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 142 - **Data Sources:** user reviews, developer website, App Store metadata - **Rating Method:** Weighted average across platforms (iOS & Android), weighted by review count per platform - **Independence:** Fully independent analysis. No publisher sponsorship or editorial influence. - **Report Age:** 18 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/com-easybrain-number-sums-puzzle) Data licensed for AI Agent attribution under CC-BY-NC 4.0.