Comparison

X vs SumLock

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

Head to head
About

X

Engage your mind with a fun twist on the classic 15-puzzle. Offers multiple board sizes beyond the standard grid and integrates with Game Center for high score tracking. It's a violence-free brain teaser suitable for all ages.

Highlights
  • Multiple board sizes (3x3 to 5x5)
  • Game Center integration
  • High score leaderboards
  • No in-app purchases
  • Suitable for all ages
  • Runs on iPhone and iPad
Features
Read full description

X Puzzle is the classic sliding puzzle, reimagined as a beautiful wooden set. Slide maple and walnut tiles around a walnut tray and put them back in order in as few moves as you can. Choose your challenge: • Seven boards, from a quick 3×3 to the brand-new 10×10 with 99 tiles • The classic 4×4 "15 puzzle", plus 4×3, 5×3, 5×4 and 5×5 Features: • Realistic wooden tiles, warm lighting and smooth drag-to-slide controls • Slide a whole row of tiles in one move • Every shuffle is random and always solvable • Game Center leaderboards and achievements, plus your personal bests on the device • Challenge friends in the Games app, or send them your board in iMessage • A playable Home Screen widget • Runs on iPhone, iPad, Mac and Apple Watch • No ads. An optional tip jar if you'd like to say thanks. Thanks for playing!

About

SumLock

Features
Read full description

Have you ever wanted a brain teaser that perfectly combines logic, math, and the pure satisfaction of cracking a safe? SumLock is the answer. Most puzzle games rely entirely on vocabulary or repetitive patterns. SumLock is different. It’s a beautifully dark, immersive numbers game where you use deduction and quick arithmetic to break open a 6-digit master code. Crack the Master Code: You have exactly 4 attempts to break the lock. Each row forces you to think strategically, shifting your digits as you hunt for the hidden combination. The Ultimate Math Challenge: There's a catch! Every single guess must consist of 6 completely unique digits, and their total sum must exactly match the Target Sum displayed at the top of your screen. It's a brilliant double-layer challenge for your mind. Color-Coded Clues: Hit "LOCK IN" to submit your combination and see how the vault reacts. Green means the digit is in the perfect spot; Blue means it's part of the code but needs to move; Red means it's not in the code at all. Build Your Winning Streak: Keep your mind sharp and see how many locks you can open in a row. Save your records automatically and push yourself to beat your personal best streak. Why SumLock? Because giving your brain a quick daily workout should be satisfying, crisp, and fun. Complete with clean haptic feedback, daily reminders, and a distraction-free layout, SumLock is the perfect ritual to test your reasoning skills. Download SumLock today—the ultimate challenge to see if you can break the code.

Screenshots

X4 screens
SumLock3 screens

Verdict

The call

The clearest difference is price: X at Free against SumLock's $0.99. X also leads on ads (none vs shown) and device support (5 vs 1). SumLock's advantage is rating (5.0 vs 4.0). On ratings volume, in-app purchases and iOS requirement 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

X is free to download; SumLock costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

SumLock holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Scorecard4 real differences · 6 level
X versus SumLock: the parameters behind the verdict, then further details
ParameterXSumLock
PriceFree — better$0.99
Rating4.0 (1 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings11
Update frequencyWeekly—
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, Mac, Apple TV, Apple Watch — betteriPhone
Requires iOS16.0 — better17.6
Further details — not scored
Size54 MB5 MB
Age rating4+4+
DeveloperPeter PurmonenH Valeur

In-app purchases

None

X

No in-app purchases

None

SumLock

No in-app purchases

Questions

Is X free?
X is free to download, with no in-app purchases.
Is SumLock free?
SumLock costs $0.99, with no in-app purchases.
Which has better reviews, X or SumLock?
SumLock is rated higher. X averages 4.0 out of 5 from 1 ratings, while SumLock averages 5.0 from 1 ratings.
Do X or SumLock have ads?
SumLock shows ads; X does not.

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