Comparison

Number Spy vs Block Blast

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

Head to head
About

Number Spy

A number guessing game where players hunt for a mystery number between 1 and 999. Compete against friends or AI opponents using visual clues and hint arrows to find the target number first.

Highlights
  • Mystery number hunt
  • AI opponents (Average, Smart, Peeking)
  • WiFi multiplayer mode
  • Customizable game settings
  • Hint arrows and range indicators
  • Parental peek feature
Features
Read full description

Number Spy – The Ultimate Number Hunt Begins! Ready for a brain-teasing challenge that’s as fun as it is addictive? Number Spy reinvents the classic "Hot or Cold" game with a thrilling twist—hunt down a mystery number between 1 and 999 before your opponent does! Whether you’re facing off against a friend over WiFi or outsmarting a crafty computer opponent, every guess brings you closer to victory—or defeat. How It Works: - Spin the number wheels and make your guess. - Watch the clues light up: Purple (Cold) for way off, Red (Ouch!) for oh-so-close, and everything in between. - Follow the Hint Arrows (Up or Down) to zero in on the target. - Strike the Mystery Number first and claim your win! Why You’ll Love It: - Solo Mode: Test your skills against a computer opponent—choose Average for a casual duel, Smart for a real challenge, or Peeking for a nail-biting race. - WiFi Mode: Challenge a friend and see who’s the ultimate Number Spy. Sync up, set your avatars, and let the showdown begin! - Custom Fun: Pick your avatar, set the number of games per match (1-10), and tweak the odds to keep it exciting for everyone. - Secret Edge: Parents, hold the Cold (Blue) indicator for 2 seconds to sneak a peek at the Mystery Number—perfect for guiding younger players! Quick to Learn, Tough to Master: With colorful Range Indicators and clever opponents that adapt, every round is a fresh thrill. Will you outguess the competition with strategy, or rely on luck to steal the win? Download Number Spy Now! Grab it free from your app store. Get ready to hunt, guess, and triumph—your next obsession starts here!

About

Block Blast

Features
Read full description

A block puzzle built so that every piece of information reaches you three ways at once - visual, audio and haptic. Lose any one of those channels and the board is still fully readable, and still fully playable. Eight by eight grid. Three pieces at a time. Fill a row or a column to clear it. THE IDEA • Colour is never the only signal. All seven block colours carry a distinct pattern - dots, horizontal stripes, vertical stripes, crosshatch, diagonals, checkerboard, waves - and the pattern is always drawn, never an opt-in extra. • The board can be heard. Every cell has a pitch from its row and a place in space from its column, rendered through a spatial audio environment. Scan by ear and build a map of the board. • Nothing requires dragging. Drag, tap-tap and dwell all drive the same game state, so you can switch between them in the middle of a run. • Mistakes are cheap. Undo is earned as you play, near-misses snap to a legal spot, and Zen mode has no game over at all. BLIND AND LOW VISION Every cell and every tray slot is a labelled VoiceOver element: "Row 3, column 5, red with dots, fits here, clears 2 lines." Piece descriptions lead with size, because size is what decides whether a piece still fits. Audio explore turns the board into a direct-touch surface: drag a finger to hear each cell as you cross it, lift to hear it described, triple-tap to place the piece in hand. This is the mode for playing with Screen Curtain on. Every sound is synthesised on your device as it plays, so the pitch mapping used for navigation stays exact. COLOUR BLIND Seven colours, seven patterns, always drawn. Deuteranopia, protanopia, tritanopia and achromatopsia simulation can be switched on for the whole game rather than a preview swatch, so you can check a palette in the situation you actually play in. Block borders thicken automatically under Increase Contrast, and a block key lists every colour with its pattern name. MOTOR AND SWITCH CONTROL • Drag and drop - the piece floats above your finger and a near-miss snaps to a legal spot. • Sticky drag - tap a piece, every legal landing spot lights up, tap one. • Dwell control - tap a piece, rest on a cell, and it places itself. Works with Switch Control, adjustable from 0.4 to 4 seconds. Plus optional confirm-before-placing, full Reduce Motion support, and a one-tap maximum accessibility preset that sets high contrast, patterns, tap-to-place, spatial audio, haptics and verbose speech together. HAPTICS A looping heartbeat while a piece is in hand, a sharp tick when it crosses a cell where it fits, a dull thud where it does not, and a burst that grows with the number of lines cleared. MAKE IT YOURS • Six themes: Classic, Neon Glow, Pastel Soft, High Contrast, Nature, and Minimal - which paints every block the same white, because pattern carries all the identity a block needs. • Four sound packs: Synthetic, Organic, Retro and Nature. • Four clear effects, three levels of speech detail, and score announcements on or off. TWO MODES Classic keeps score, grows a combo up to five times over, and ends when nothing fits. Zen never ends - when no piece fits, the fullest rows dissolve and play carries on. PRIVACY No accounts. No ads. No analytics. No network calls of any kind. Your settings and your best score stay on your device, and nothing else is ever collected. English and Indonesian throughout, including VoiceOver labels and spoken feedback. Siri knows both: "Start Block Blast" and "Mulai Block Blast". I kept the app's British spelling ("colour") since that's what the UI strings use. If you'd rather match US storefront convention, swap to "color" in the description — the keyword field already uses "colorblind".

Screenshots

Number Spy4 screens
Block Blast4 screens

Verdict

The call

The clearest difference is iOS requirement: Number Spy at 16.0 against Block Blast's 18.0. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 9 level
Number Spy versus Block Blast: the parameters behind the verdict, then further details
ParameterNumber SpyBlock Blast
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 5 weeks—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better18.0
Further details — not scored
Size20 MB4 MB
Age rating4+4+
DeveloperNeil RohanMuhammad Fadhil Abidin

In-app purchases

None

Number Spy

No in-app purchases

None

Block Blast

No in-app purchases

Questions

Is Number Spy free?
Number Spy is free to download, with no in-app purchases.
Is Block Blast free?
Block Blast is free to download, with no in-app purchases.
Do Number Spy or Block Blast have ads?
Neither Number Spy nor Block Blast shows ads.

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