Report updated Apr 17, 2026
Number Sums - Numbers Game
For adults and puzzle enthusiasts looking for a daily mental workout to improve arithmetic skills, logic, and stress relief.
Number Sums - Numbers Game is a challenged games app that is free with in-app purchases. With a 4.4/5 rating from 137.5K reviews, it faces significant user friction. Users particularly appreciate engaging gameplay, though intrusive ad placement remains a common concern.
What is Number Sums - Numbers Game?
Current Momentum
v1.11
- Performance and stability improvements We read all your reviews and always try to make the game better. Please leave us some feedback if you love what we do and feel free to suggest any improvements. Challenge your brain with Number Sums puzzle and have fun!
What makes this app unique?
What Does It Look Like?
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What Are The Key Features?
Puzzles requiring numbers to satisfy row, column, and colored region sums simultaneously
Switch between circling correct numbers and erasing unnecessary ones to solve the board
Offers board sizes ranging from 3x3 to 10x10 to accommodate different skill levels
How much does it cost?
- Free (Ad-supported)
- $14.99 Ad-removal IAP
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.
Who Built It?
Easybrain
Providing casual gamers and puzzle enthusiasts with accessible, meditative brain-training experiences to decompress and stay mentally active.
Portfolio
13
Apps
What other apps does Easybrain make?
Logic Puzzles - Clue Game
Brick Blast - Ball Breaker
Groovepad - Music & Beat Maker
Art Puzzle - Jigsaw Games
Easy Words - Word Puzzle Games
Number Match - Numbers Game
Explore the full Easybrain report
Portfolio breakdown, audience, momentum, and every app published by Easybrain.
What do users think recently?
High confidence · Latest 100 of 142 total reviews analyzed · Based on 142 reviews. Signal may be noisy.
How did the latest release land?
What is the recent mood?
Recent user voice shows a frustrated sentiment. Users appreciate engaging gameplay, but report intrusive ad placement and high ad-free pricing.
What Users Love
What Frustrates Users
View the full user-sentiment analysis
Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.
What is the competitive landscape for Number Sums - Numbers Game?
How's The Games Market?
How does it evolve in the Games market?
Rank progression
102 active rankings tracked — 30-day window
The rivals identified
The outtake for Number Sums - Numbers Game
Strengths to defend, gaps to attack
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 are the next best moves?
Relocate ad triggers to level transitions only
Top complaint theme is 'Intrusive Ad Placement' where mid-game ads 'screw up the flow' of the logic puzzle.
A/B test a lower-priced ad-removal tier (e.g., $4.99 - $6.99)
Users explicitly labeled the $14.99 price point as 'insane' and 'excessive,' creating a barrier to conversion.
Optimize background processes to reduce device heat
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)
Key Takeaways
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.
Where Is It Heading?
Stable
Upset user sentiment due to mid-game ads — high risk of churn to better-optimized competitors like Killer Sudoku.
Recent updates (v1.11.0) focused only on stability — indicates maintenance mode rather than active feature growth.
Strong category ranking (#59) and high rating count — indicates effective top-of-funnel acquisition despite retention risks.