Comparison

Echodots vs CrispSudoku

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

Head to head
About

Echodots

This daily pattern game challenges you to memorize and repeat a 5-digit sequence within five attempts. Track your progress, compete with friends, and enjoy a visually engaging and customizable memory exercise.

Highlights
  • Daily 5-digit sequence challenges
  • Pattern recognition gameplay
  • Streak tracking and leaderboards
  • Shareable gameplay summaries
  • Customizable game board and audio cues
  • Adjustable sequence play speed
Features
Read full description

Echodots is a delightful daily pattern game. Each day, a new 5-digit sequence is displayed on the game board. Players have 5 chances to repeat it back in the correct order. Track your streaks, share with friends, and go for the win! == Gameplay == • Focus your memory and pattern recognition by watching the daily sequence play on the color game board • Repeat the pattern and double-tap your last entry to submit the row • Use the feedback provided to determine if your guesses were in the right spot, the wrong spot, or not in the sequence at all • Tap a wrong color? Tap the Undo button before submitting a row • Need to see the sequence again? Tap the Echo button to rewatch the sequence. But be careful! Echos are a precious resource in Echodots! Free to play • Echodots is committed to delivering a delightful, uninterrupted experience, free of ads and subscriptions. For players seeking that extra edge, Echodots+ is available as a one-time purchase, offering immediate and lasting value. Casual play • Pick up and put down Echodots without worry of losing your progress for the day. Submitted guesses are saved and the path to victory is ready when you are. Personalize your gameplay • Fancy some audio cues? Prefer a high contrast game board? Adjust your gameplay as you see fit. Echodots+ players can customize gameplay even further. See details below! Climb the ranks • Claim your spot at the top by achieving the highest maximum win streak. See how you rank with friends and players around the world. Share with friends • Dominate the sequence on your first try? Sneak by on your final guess? Share your gameplay summary with friends and family without revealing the answer. == Echodots+ Perks == Unlock the Echo Chamber: Go from the standard 3 Echos to a whopping 7 freeEchos every week. Whether you're just starting out or you're a seasoned player, these additional Echos promise more gameplay, more strategies, and more victories. Newcomers will revel in an immediate boost to 7 Echos for immediate value. Master Your Momentum: Gameplay too sluggish or too speedy? With the ability to tweak the sequence play speed from a deliberate 0.2x to a blistering 3x, you control the rhythm of your game. This means every session is tailored to your preference, making your victories always within reach. Color Your Challenges: Elevate your experience with Exclusive Game Palettes, offering a fresh lens to tackle each sequence. Choose from a selection that includes calming Earth tones, the soothing Blues, the warm Reds, or the glowing Neon among others. Each palette not only changes the game's appearance but also brings a new mood and strategy to your play. Personalize Your Home Screen: Your game, your icon. With premium alternate app icons, choose from distinctive designs to reflect your style right on your home screen. Whether you’re drawn to the sleekness of Dark, the unassuming Grays, or the inclusivity of Miniature, your app icon can be as personal as your gameplay. Future Benefits: Gain new Plus features and perks with future app updates == Accessibility == Echodots strives to be accessible to all players of all abilities. Features like sound effects, visual overlays, and custom sequence speeds means everyone can join in the fun. Strategize with Numbers: Enhance your gameplay with a Number Overlay, allowing you to visualize colors with numbers for a different strategy approach. This feature is perfect for players who find numbers more intuitive, adding an extra layer of strategy. Visualize with Sybmols: Elevate your experience with a symbol overlay, enabling you to visualize colors through SF Symbols for a visual strategic approach. This feature is ideal for players who find symbols more intuitive, adding an additional dimension of strategy. Symbols randomize upon toggling. == Terms & Privacy == https://thatvirtualboy.com/echodots#privacy https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

CrispSudoku

Features
Read full description

CrispSudoku is a polished, ad-free Sudoku game with real depth — five rule variants, six grid sizes, and a built-in tutor that explains how to solve every board. PLAY YOUR WAY • Five variants: Classic, Jigsaw (irregular regions), Sudoku-X (diagonals), Killer (summed cages) and Thermo (digits climb along each thermometer) • Six grid sizes: 4×4, 6×6, 8×8, 9×9, 10×10 and 12×12 • Four difficulties, from Easy to Expert • A new Daily Challenge every day — the same board for everyone LEARN AS YOU PLAY • "Explain the solve" walks through any board step by step, naming each technique (naked singles, hidden singles, locked candidates, X-wing and more) • "Next logical step" hints tell you what to play next, and why • Every puzzle gets an honest difficulty rating based on the hardest technique it actually requires THOUGHTFUL TOUCHES • Pencil-mark notes, unlimited undo, and live conflict highlighting • A mistake limit that scales with difficulty • Per-difficulty hint budgets, so hints stay meaningful • Beautiful themes you unlock as you play • Achievements, streaks and detailed statistics PRIVATE BY DESIGN • 100% offline — no account, no ads, no tracking, no data collection • Every puzzle is guaranteed to have exactly one solution CrispSudoku is free software, open source under the GNU AGPL-3.0.

Screenshots

Echodots4 screens
CrispSudoku4 screens

Verdict

The call

The clearest difference is in-app purchases: CrispSudoku at none against Echodots's 4. CrispSudoku also leads on iOS requirement (15.0 vs 17.0). Echodots's advantage is update cadence (every 2 days vs fortnightly). On price, 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. Echodots sells 4 one-off in-app purchases. CrispSudoku asks for nothing beyond the download.

UpkeepUpdate frequency

Echodots ships an update every 2 days, CrispSudoku fortnightly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
Echodots versus CrispSudoku: the parameters behind the verdict, then further details
ParameterEchodotsCrispSudoku
PriceFreeFree
Rating4.5 (11 ratings) — better—
Positive reviews71.4% of reviews—
Number of ratings11 — better—
Update frequencyEvery 2 days — betterFortnightly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size20 MB20 MB
Age rating4+4+
DeveloperrakTech LLCChristian Strobele

In-app purchases

4 purchases

Echodots

One-time4
  • Echo 3 Pack$0.49
  • Echo 10 Pack$1.49
  • Echo 20 Pack$2.49
Show 1 more
  • Echodots+$7.99
None

CrispSudoku

No in-app purchases

Questions

Is Echodots free?
Echodots is free to download, with in-app purchases available.
Is CrispSudoku free?
CrispSudoku is free to download, with no in-app purchases.
Do Echodots or CrispSudoku have ads?
Neither Echodots nor CrispSudoku shows ads.
Which is updated more often, Echodots or CrispSudoku?
Echodots ships an update every 2 days, and CrispSudoku fortnightly. Most recently, Echodots was updated on October 24, 2026 and CrispSudoku on October 25, 2026.

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