Sudoku Blocks vs RackRush
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Sudoku Blocks
This game combines Sudoku and block puzzle mechanics on a 9x9 grid. Strategically place blocks to complete lines and squares, aiming for combos and streaks to achieve high scores. It offers a relaxing yet challenging brain-training experience for all ages.
- Sudoku and block puzzle hybrid
- 9x9 grid gameplay
- Line and square completion
- Combo and streak scoring
- No time limit
- Theme customization
- Blast Mode
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Sudoku Block is a fabulous combination of sudoku and block puzzle games. It’s a simple yet challenging puzzle you won’t be able to put aside. Match blocks to complete lines and squares to get them removed. Keep the board clean, and beat your high score. HOW TO PLAY: - Drop the blocks on the 9x9 grid. - Fill up lines and squares to keep the board clean. - Destroy several elements at once to make a Combo. - Make several successful moves in a row to get a Streak. - Beat your high score, and compete with other players in Game Center. - Customize the game with a theme of your choice. - Blast Mode is fun to play. - Fun for the whole family - kids, teens and adults, girls and boys! HOW TO BECOME A SUDOKU BLOCK MASTER? • There is no time limit, so no rush. Think one step ahead if you have to face a difficult move. It might be your last one. • Try to place blocks on the board to destroy lines or 3x3 squares with every move in order not to fill up the board. • Find your zen by balancing between destroying figures as quickly as possible and getting as many combos and streaks as you can to score higher. • Score more points by making streaks. The emptier the board is – the better for you! • It's always risky to wait for a good block – you may quickly run out of moves. When you see a chance to destroy any figure, do it. Relieve stress, or train your brain with a relaxing, yet challenging, game of Sudoku Block anywhere, anytime! Download now but don't get too addicted!
RackRush
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Challenge players to fast-paced word duels! Build the longest word from your rack of letters before time runs out. No turn waiting — both players play at the same time. Rounds last under a minute; a full match takes about five. FREE TO PLAY - Online PvP — Free real-time battles in 9-letter mode. If nobody's free right now, you'll warm up against a bot instead - Daily Challenge — Everyone gets the same letters; compete on the global leaderboard and build your streak - Challenge Links — Send a rack to a friend, they play it right in their browser - Bot Warm-up — Practice in Quick-7 mode against the Easy AI - Friends & weekly ladder — Add rivals by friend code and climb the Monday-to-Sunday ladder - Daily Quests — Earn coins, unlock free tile skins RACKRUSH PRO — ONE-TIME PURCHASE, YOURS FOREVER - Bot upgrades: Medium & Hard difficulty plus 4 personality bots with unique playstyles - Extra letter modes: extra solo/practice racks plus extra party/custom racks - Party Mode: pass & play on one device, local WiFi play, and private invite-code lobbies for up to 8 friends - Tournament Mode: run brackets and crown a champion - Detailed match statistics - Premium customisation: Pro tile skins HOW TO PLAY 1. Get a rack of random letters 2. Build the longest word you can — bonus tiles multiply your score 3. Submit before the timer runs out 4. The highest total score across the match wins Fair play guaranteed: every word is checked on our servers, and everyone in the Daily Challenge gets the same rack and bonuses. Online PvP is free in 9-letter mode. Pro unlocks deeper solo, party, tournament, and custom play options.
Screenshots
Verdict
The clearest difference is in-app purchases: Sudoku Blocks at none against RackRush's 1. Sudoku Blocks also leads on iOS requirement (11.0 vs 15.6). RackRush's advantage is ads (none vs shown). On price, update cadence 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
Both are free to download. RackRush sells 1 one-off in-app purchase. Sudoku Blocks asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on November 3, 2026 and November 9, 2026 respectively.
| Parameter | Sudoku Blocks | RackRush |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (75 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 75 — better | — |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 72 MB | 47 MB |
| Age rating | 4+ | 12+ |
| Developer | 衍旋 廖 | Btltech Ltd |
In-app purchases
Sudoku Blocks
No in-app purchases
RackRush
- RackRush Pro$2.99
Questions
Is Sudoku Blocks free?
Is RackRush free?
Do Sudoku Blocks or RackRush have ads?
Which is updated more often, Sudoku Blocks or RackRush?
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