--- 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: "2026-04-10" report_version: "1.11.0" total_reviews: 137052 overall_rating: 4.39 sentiment: "Frustrated" sentiment_score: 28 confidence: "high" confidence_score: 0.8 data_age_days: 75 intelligence_version: 3 nemesis: "Killer Sudoku by Beetles Studio" competitor_count: 7 tags: ["games", "freemium", "frustrated sentiment", "mobile app", "app review", "app analysis", "adults", "puzzle", "enthusiasts"] canonical_url: "https://marlvel.ai/intel-report/games/com-easybrain-number-sums-puzzle" license: "CC-BY-NC 4.0" last_verified: "2026-04-17T10:41:25.128Z" --- # Number Sums - Numbers Game App Audit > **TL;DR:** Number Sums - Numbers Game is a games app by Easybrain Ltd, rated 4.39/5 by 137,052 users, with Frustrated user sentiment (28/100), available on iOS & Android. > > **Marlvel.ai App Intelligence** โ€” Independent analysis. US Market. No publisher influence. > **Key Insight:** Number Sums - Numbers Game faces Frustrated user sentiment (4.39/5 from 137,052 reviews), with intrusive ad placement as the primary user concern. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.39/5 (137,052 reviews) | | **User Mood** | Frustrated | | **Category** | Games | | **Developer** | Easybrain Ltd | | **Pricing** | Freemium | | **Platforms** | iOS & Android | | **Confidence** | High (0.8/1.0) | | **Data Age** | 0d | ## Metadata & Market Performance - **Publisher:** Easybrain Ltd - **Category:** Games - **Target Audience:** Adults and puzzle enthusiasts looking for a daily mental workout to improve arithmetic skills, logic, and stress relief. - **Platforms:** iOS & Android - **Version Audited:** 1.11.0 - **Audit Date:** 2026-04-10 - **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 2026-04-10 - **Short Description:** Number puzzles and math games for brain training. Test your arithmetic skills! ## Executive Snapshot Number Sums is a logic-based arithmetic puzzle game by Easybrain that utilizes a unique colored-region sum mechanic to differentiate itself in the brain-training market. While it successfully attracts a large audience seeking mental stimulation, the product is currently hampered by an aggressive monetization strategy that interrupts gameplay with frequent ads. It maintains a top-60 category ranking but faces a frustrated user base due to technical performance issues and high ad-removal costs. ## App DNA (Features & Intent) - **[Differentiator] Multi-Constraint Logic Puzzles:** Puzzles requiring numbers to satisfy row, column, and colored region sums simultaneously * *User Intent:* Users expect intelligent, adaptive experiences that learn from their behavior. - **[Standard] Dual-Mode Input Toggle:** Switch between circling correct numbers and erasing unnecessary ones to solve the board - **[Standard] Scalable Difficulty Levels:** Offers board sizes ranging from 3x3 to 10x10 to accommodate different skill levels ## Monetization Strategy - **Model:** Freemium - **Tiers:** Free (Ad-supported), $14.99 Ad-removal IAP - **Analysis:** The app employs an aggressive ad-supported model with mid-game interruptions. The $14.99 price point for ad removal is significantly higher than category averages, leading to user perception of the pricing as predatory. ## ๐Ÿ”ด User Sentiment (High Confidence: 137,052 reviews) {#user-sentiment} - **Overall Rating:** 4.39/5 - **Platform Split:** iOS 4.6/5 (29,165 ratings) | Android 4.3/5 (107,887 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 - **Engaging Gameplay** | *Evidence:* "The logic that goes into solving the puzzles is very stimulating" ### Top Complaints (Impact Areas) - **Intrusive Ad Placement** | *Evidence:* "Ads in the middle of a game are unacceptable" - **High Ad-Free Pricing** | *Evidence:* "$14.99 is WAY to high a price to pay" ## SWOT Analysis **Core Strengths:** - Unique colored-region logic differentiator - Minimalist and clean UI design - High volume of levels (3x3 to 10x10) **Critical Frictions:** - Mid-game ad interruptions causing flow disruption - High price point for ad-free experience ($14.99) - Technical issues including device overheating and battery drain **Growth Levers:** - Implement daily challenges and seasonal trophies to increase retention - Add 'pencil marks' for advanced logic solving - Introduce multi-operator puzzles (multiplication/division) **Market Threats:** - Killer Sudoku's superior ad-reward loop and retention features - Viral growth of AI-themed competitors like Sumplete - Negative sentiment trend leading to increased uninstalls ## What's Changed (v2 โ†’ v3) {#recent-changes} The app's competitive position is currently strained by aggressive monetization and technical performance issues, prompting a more granular analysis of its competitive landscape and necessary product interventions. - **[HIGH]** **[Shifted] Pricing Perception Shift:** The $14.99 ad-removal price is now explicitly categorized as 'predatory' and a major barrier to conversion compared to category averages. - **[HIGH]** **[Added] Technical Weaknesses:** New reports of device overheating and battery drain have been added as a core weakness impacting user experience. - **[HIGH]** **[Shifted] Competitive Benchmarking:** The competitive landscape now includes a detailed head-to-head comparison with Killer Sudoku, highlighting its superior retention and ad-reward loops. - [MED] **[Added] Feature Gap Identification:** Formalized list of missing features including dark mode, pencil marks, and multi-operator support. ## 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 โ€” Head to Head - **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 - **Publisher (Beetles Studio) strengths:** Dominant player in classic puzzle categories (Sudoku, Solitaire); Expertise in high-frequency ad monetization without breaking core gameplay flow - **Where Number Sums - Numbers Game wins:** - โœ… Number Sums features a unique 'colored region' constraint that is more visually intuitive than Sudoku cages - โœ… Minimalist design and cleaner UI compared to the data-heavy interface of Killer Sudoku - **Where Killer Sudoku by Beetles Studio wins:** - โŒ Significantly higher rating count and established user base (100k+ ratings) - โŒ Better sentiment regarding ad frequency; Number Sums currently suffers from a low 28 sentiment score due to intrusive ads - **Verdict:** Killer Sudoku currently holds the market edge due to its superior scale and better-managed ad experience. While Number Sums has a more accessible 'pure math' mechanic, it must address the negative sentiment surrounding ad frequency to compete with Beetles Studio's retention metrics. ### 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/intel-report/games/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 ## The "So What?" (Strategic Takeaway) {#so-what} Number Sums - Numbers Game is a challenged games app that is free with in-app purchases. With a 4.39/5 rating from 137,052 reviews, it faces significant user friction. > **Bottom Line:** Number Sums has a winning core mechanic with its colored-region logic, but it is currently being 'monetized to death.' If I were the PM, I would immediately move ads out of the active puzzle state and lower the ad-removal price to $6.99 to salvage the 28-score sentiment and prevent further churn to Killer Sudoku. **Best for:** Adults and puzzle enthusiasts looking for a daily mental workout to improve arithmetic skills, logic, and stress relief. ### PM Action Plan (Next Best Moves) - [ ] [HIGH] Relocate ad triggers to level transitions only โ€” *Top complaint theme is 'Intrusive Ad Placement' where mid-game ads 'screw up the flow' of the logic puzzle.* - [ ] [HIGH] A/B test a lower-priced ad-removal tier (e.g., $4.99 - $6.99) โ€” *Users explicitly labeled the $14.99 price point as 'insane' and 'excessive,' creating a barrier to conversion.* - [ ] [MEDIUM] Optimize background processes to reduce device heat โ€” *Multiple reports of the app making phones 'constantly warm/hot' and killing battery more than other games.* ### Feature Gaps vs Competitors - Daily challenges and seasonal trophies (available in Killer Sudoku) - Pencil marks and error highlighting (available in Kakuro Logic Puzzles) - Multi-operator support (available in Math Crossword) - Dark mode (available in Sumple) ### Outlook: Stable - ๐Ÿ”ด Upset user sentiment due to mid-game ads โ€” high risk of churn to better-optimized competitors like Killer Sudoku. - โšช Recent updates (v1.11.0) focused only on stability โ€” indicates maintenance mode rather than active feature growth. - ๐ŸŸข Strong category ranking (#59) and high rating count โ€” indicates effective top-of-funnel acquisition despite retention risks. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.39/5 | | Total Reviews | 137,052 | | Sentiment | Frustrated (28/100) | | Confidence | High | | Pricing Model | Freemium | | Platforms | iOS & Android | | Key Features | 3 analyzed | | Trend | Declining | | Outlook | Stable | ## 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/intel-report/games/woodoku-wood-block-puzzles) | 4.7/5 | Frustrated | Tripledot Studios | | [Royal Match](https://marlvel.ai/intel-report/games/royal-match) | 4.7/5 | Excited | Dream Games | | [Bejeweled Blitz](https://marlvel.ai/intel-report/games/bejeweled-blitz) | 3.4/5 | Frustrated | PopCap | | [Brawl Stars](https://marlvel.ai/intel-report/games/brawl-stars) | 4.5/5 | Mixed | Supercell | | [Temple Run](https://marlvel.ai/intel-report/games/temple-run) | 4.3/5 | Excited | Imangi Studios, LLC | ## Company Profile - **Developer:** Easybrain Ltd - **Website:** [https://easybrain.com](https://easybrain.com) - **Social:** [Instagram](https://www.instagram.com/easybrainteam) ยท [Facebook](https://www.facebook.com/Easybrain-168470230583950) ยท [YouTube](https://www.youtube.com/watch) ยท [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/intel-report/games/woodoku-wood-block-puzzles) (Tripledot Studios) โ€” 4.7/5 Rating | Negative Sentiment - [*Royal Match*](https://marlvel.ai/intel-report/games/royal-match) (Dream Games) โ€” 4.7/5 Rating | Positive Sentiment - [*Bejeweled Blitz*](https://marlvel.ai/intel-report/games/bejeweled-blitz) (PopCap) โ€” 3.4/5 Rating | Negative Sentiment - [*Brawl Stars*](https://marlvel.ai/intel-report/games/brawl-stars) (Supercell) โ€” 4.5/5 Rating | Mixed Sentiment - [*Temple Run*](https://marlvel.ai/intel-report/games/temple-run) (Imangi Studios, LLC) โ€” 4.3/5 Rating | Positive Sentiment - [*Hole.io*](https://marlvel.ai/intel-report/games/hole-io) (Voodoo) โ€” 3.8/5 Rating | Negative Sentiment - [*YouRiding - Surf and Bodyboard*](https://marlvel.ai/intel-report/games/youriding-surf-and-bodyboard) (BoardScore, Inc.) โ€” 4.2/5 Rating | Mixed Sentiment - [*Partymasters - Fun Idle Game*](https://marlvel.ai/intel-report/games/partymasters-fun-idle-game) (AI Games FZ) โ€” 4.5/5 Rating | Positive Sentiment - [*Stumble Guys*](https://marlvel.ai/intel-report/games/stumble-guys) (Scopely, Inc.) โ€” 4.5/5 Rating | Positive Sentiment - [*Archero*](https://marlvel.ai/intel-report/games/archero) (HABBY) โ€” 4.5/5 Rating | Negative Sentiment ## Methodology {#methodology} This report was generated by Marlvel.ai's 3-stage AI intelligence pipeline: 1. **Feature & Positioning Extraction** โ€” Analyzes app metadata, developer website content, and version history to identify key features, target audience, and competitive positioning. 2. **Sentiment Analysis** โ€” Processes user reviews (minimum 5 reviews required) to extract praise themes, complaint themes, and overall sentiment with evidence quotes. 3. **Intelligence Synthesis** โ€” Combines stages 1 & 2 with App Store rankings to produce SWOT analysis, executive summary, 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:** 0 days since last refresh --- ยฉ 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/intel-report/games/com-easybrain-number-sums-puzzle) Data licensed for AI Agent attribution under CC-BY-NC 4.0.