Comparison

Sum vs Nummora

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Sum

A logic puzzle game where players fill in missing squares to match row and column totals. It offers various modes like Standard, Time Attack, and Grid Blitz, suitable for casual play or skill sharpening.

Highlights
  • Fill missing squares to match totals
  • Standard mode with adjustable difficulty
  • Time Attack mode against the clock
  • Grid Blitz mode for speed and accuracy
  • Sharpen quick addition skills
  • Suitable for all ages
Features
Read full description

In Sum-Squares, fill in the missing squares to match the totals at the end of each row and column! Jump into an assortment of unique modes: Standard - Pick a grid size and difficulty, then solve the missing squares as fast as you can! The better your logical deduction skills, the more points you'll earn. Time Attack - Race against the clock to see how many grids you can complete before time runs out! Grid Blitz - The grids are small in this mode, but your deduction skills will be put on full display in this test of speed and accuracy! This free-to-play, addictive puzzle game is sure to be fun for all ages. It can be enjoyed as a casual experience or to help sharpen your quick addition skills. Ready to test your logic? Download now and start solving!

About

Nummora

Features
Read full description

Sharpen your mind with Nummora, a beautifully crafted Sudoku experience for every skill level. From your first puzzle to expert-level challenges, Nummora delivers a polished, immersive experience right in your pocket. FOUR DIFFICULTY LEVELS Pick the challenge that matches your skill: - Easy — 46 givens, perfect for learning the ropes - Medium — 36 givens, a balanced and satisfying challenge - Hard — 30 givens, for experienced players - Expert — 24 givens, the ultimate brain teaser Each difficulty has its own scoring system with time bonuses, so every puzzle rewards focus and speed. SMART HINTS THAT TEACH Unlike ordinary number puzzle hints, Nummora explains WHY a number belongs in a cell. Learn 8 real Sudoku techniques as you play: - Last Remaining in Row, Column, or Box - Naked Single detection - Hidden Single in Row, Column, or Box - Advanced Technique deduction Each hint shows the technique name and a clear explanation so you actually improve your logic skills, not just fill in answers. DAILY CHALLENGES & STREAKS A fresh puzzle awaits you every day. Complete daily challenges to build your streak and develop a powerful daily habit. Watch your streak counter climb and stay consistent day after day. POWERFUL TOOLS AT YOUR FINGERTIPS - Notes Mode — Use pencil marks to track candidates in every cell - Smart Hints — Get hints with real technique explanations - Undo — Reverse your last move instantly - Erase — Clear a cell and start fresh - Auto-Check Errors — Catch mistakes in real time as you play - Smart Highlighting — Same numbers, rows, columns, and boxes light up as you select cells FEEL EVERY MOVE Haptic feedback on every tap, sound effects for correct placements and mistakes, and glow animations when you complete a row, column, or box. Everything is fully customizable in Settings. LEVEL UP & EARN ACHIEVEMENTS Your score grows with every puzzle you complete. Climb through 8 rank titles from Beginner all the way to Sudoku Master. Unlock achievements like Speed Demon, No Mistakes, and 30 Day Streak as you improve. TRACK YOUR PROGRESS Dive into detailed statistics that show your growth: - Games played, win rate, and average completion time - Personal best times for every difficulty level - Current and longest streaks - Recent activity log with your latest results 8 STUNNING BOARD THEMES Personalize your board with beautifully designed themes: Classic, Ocean Deep, Sunset Blaze, Emerald Forest, Midnight Gold, Rose Petal, Arctic Frost, and Volcano. AVAILABLE IN 13 LANGUAGES Play in your preferred language — English, Japanese, Chinese, Korean, Spanish, Portuguese, German, French, Italian, Russian, Turkish, Arabic (with RTL support), and Hindi. BUILT FOR EVERY PLAYER - Interactive 7-step tutorial walks beginners through every feature - How to Play guide available anytime from the game board - Customizable mistake, hint, and undo limits to match your play style - Optimized for both iPhone and iPad - Fully offline — no internet connection required to play - Auto-save, timer with pause, and share your results with friends Disclaimer: Some features and game modes are available only with an in-app purchase or an active subscription. Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your account settings on the App Store after purchase. Privacy Policy: https://sites.google.com/view/ub-web/privacy-policy Terms and Conditions: https://sites.google.com/view/ub-web/terms-of-use Download now and start training your brain today.

Screenshots

Sum4 screens
Nummora4 screens

Verdict

The call

The clearest difference is in-app purchases: Sum at none against Nummora's 2. On price, update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Nummora sells 2 in-app purchases, starting at $4.99 per month. Sum asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. Both last shipped on November 5, 2026.

Scorecard1 real difference · 9 level
Sum versus Nummora: the parameters behind the verdict, then further details
ParameterSumNummora
PriceFreeFree
Rating5.0 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size28 MB7 MB
Age rating4+4+
DeveloperAllen KagleUday Bodar

In-app purchases

None

Sum

No in-app purchases

2 purchases

Nummora

Subscriptions2
  • Pro Monthly3 Days trial$4.991 Month
  • Pro Yearly7 Days trial$29.991 Year

Questions

Is Sum free?
Sum is free to download, with no in-app purchases.
Is Nummora free?
Nummora is free to download, with in-app purchases available.
Do Sum or Nummora have ads?
Neither Sum nor Nummora shows ads.
Which is updated more often, Sum or Nummora?
Sum ships an update weekly, and Nummora weekly. Most recently, Sum was updated on November 5, 2026 and Nummora on November 5, 2026.

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