Comparison

Medium Sudoku vs Bubble Hard

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

Head to head
About

Medium Sudoku

Features
Read full description

This app is designed for thoughtful, satisfying play—where each puzzle invites focus, logic, and a touch of persistence. The difficulty steps up, but never overwhelms. There are no timers, no tricks, and no rush. You’re allowed up to ten mistakes per puzzle—enough room to explore, but not coast. It’s fair, firm, and quietly rewarding. Puzzles are organized into themed packs that encourage curiosity and gradual mastery. Play them in any order—jump ahead, circle back, or complete the whole set at your own rhythm. There are no hints, animations, or flashy effects. Just a clean interface, steady concentration, and the quiet satisfaction of solving something real.

About

Bubble Hard

Features
Read full description

Bubble Hard is a hard‑but‑fair arcade game where rushing costs you. Pop the right bubble under pressure, chase streaks, and climb the leaderboard. New Daily Challenge every day. - Pop Order mode: Careful selection beats speed. - Calm Under Pressure mode: Avoid the forbidden bubble - Pop Count mode: Number rules that punish autopilot. Daily Challenge + Game Center leaderboards Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://picturing-bits.com/bubblehard/privacy-policy

Screenshots

Medium Sudoku4 screens
Bubble Hard4 screens

Verdict

The call

The clearest difference is in-app purchases: Medium Sudoku at none against Bubble Hard's 2. Bubble Hard's advantage is ads (none vs shown). On price, device support 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

Both are free to download. Bubble Hard sells 2 in-app purchases, starting at $8.99 per year. Medium Sudoku asks for nothing beyond the download.

Scorecard2 real differences · 3 level
Medium Sudoku versus Bubble Hard: the parameters behind the verdict, then further details
ParameterMedium SudokuBubble Hard
PriceFreeFree
AdsYesNo — better
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.6 — better18.6
Further details — not scored
Size12 MB20 MB
Age rating4+4+
DeveloperH Valeurpicturing bits

In-app purchases

None

Medium Sudoku

No in-app purchases

2 purchases

Bubble Hard

Subscriptions1
  • Bubble Hard Yearly$8.991 Year
One-time1
  • Bubble Hard Lifetime$19.99

Questions

Is Medium Sudoku free?
Medium Sudoku is free to download, with no in-app purchases.
Is Bubble Hard free?
Bubble Hard is free to download, with in-app purchases available.
Do Medium Sudoku or Bubble Hard have ads?
Medium Sudoku shows ads; Bubble Hard does not.

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