Comparison

HappyBlockBox vs PRISM SLICE

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

Head to head
About

HappyBlockBox

A colorful block puzzle game where you fill rows or columns to trigger satisfying clears. No energy or lives, just strategic piece placement. Features power-ups earned through gameplay and multiple modes.

Highlights
  • 8x8 block puzzle gameplay
  • Fill rows/columns for clears
  • Power-ups earned through play
  • Endless, Daily Challenge, and Levels modes
  • Tap or drag placement options
  • Customizable sound and haptics
Features
Read full description

HappyBlockBox is a colourful 8x8 block puzzle built around satisfying placements and one simple rule: fill an entire row or column to trigger a Surge. There is no energy or lives. Pick a piece, tap or drag it onto the board, and chase the next perfect clear. THE SURGE Every piece carries its own colour. When a complete row or column is filled, it bursts into light and clears from the board. Keep clearing to build your Combo and earn bigger scores. POWER PIECES Bombs clear a 3x3 area. Beams clear a row and column. Prisms recolour nearby blocks. Power Pieces are available through play and never sit behind a paywall. LUCKY STARS Watch for a glowing Lucky Star on an empty cell. Cover it with a block to collect a bonus score boost. WAYS TO PLAY Endless mode is a calm, open-ended board. Daily Challenge gives everyone the same board of the day. Levels provide score targets and unlock progressively as you complete them. MADE TO FIT YOU HappyBlockBox supports tap-to-place as well as drag-to-place. Settings let you tailor background music, sound effects, and haptic feedback. FAIR AND OPTIONAL HappyBlockBox is designed to be enjoyed at your pace. There are no subscriptions, consumable currencies, loot boxes, or gameplay timers.

About

PRISM SLICE

An endless cutting puzzle game where strategic placement of shapes clears glowing tiles. Create combos and manage a growing grid across multiple game modes, including daily challenges and a relaxed Zen Flow option. No internet connection is required to play.

Highlights
  • Endless cutting puzzle gameplay
  • Dynamic board changes
  • Multiple game modes (Endless, Daily, Rift Rush, Zen Flow)
  • Combo building and power-ups
  • Offline play supported
  • No account required
Features
Read full description

Prism Slice is an endless cutting puzzle game where every move changes the board. Instead of matching colors or filling lines, choose a cutter shape and place it over glowing tiles. A clean cut creates empty space. Any tiles left disconnected from the edge become islands and dissolve for bonus points. Build combos, charge Prism Pulse, draft relics, shatter Rift Cores, and manage a growing grid across four ways to play: ENDLESS: Keep the board open for as long as possible. DAILY: Play the shared seeded challenge for the day. RIFT RUSH: Score under escalating time pressure. ZEN FLOW: Solve at your own pace with no failure state. Prism Slice also includes missions, a codex, local progress tracking, and Prism Path trials. No account or internet connection is required.

Screenshots

HappyBlockBox4 screens
PRISM SLICE4 screens

Verdict

The call

The clearest difference is review sentiment: HappyBlockBox at 100% against PRISM SLICE's 0%. HappyBlockBox also leads on rating (5.0 vs 1.0) and ratings volume (7 vs 1). On price, update cadence, ads and in-app purchases 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.

ReceptionRating · Positive reviews · Number of ratings

HappyBlockBox holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: HappyBlockBox has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of HappyBlockBox's written reviews are positive against 0% of PRISM SLICE's.

UpkeepUpdate frequency

HappyBlockBox ships an update fortnightly, PRISM SLICE every 4 weeks. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.

Scorecard3 real differences · 7 level
HappyBlockBox versus PRISM SLICE: the parameters behind the verdict, then further details
ParameterHappyBlockBoxPRISM SLICE
PriceFreeFree
Rating5.0 (7 ratings) — better1.0 (1 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings7 — better1
Update frequencyFortnightly — betterEvery 4 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.615.6
Further details — not scored
Size77 MB108 MB
Age rating4+4+
DeveloperYelyzav ShevchenkoStephanie Frances Fazzi

Customer experience

HappyBlockBox

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

PRISM SLICE

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

HappyBlockBox

No in-app purchases

None

PRISM SLICE

No in-app purchases

Questions

Is HappyBlockBox free?
HappyBlockBox is free to download, with no in-app purchases.
Is PRISM SLICE free?
PRISM SLICE is free to download, with no in-app purchases.
Which has better reviews, HappyBlockBox or PRISM SLICE?
HappyBlockBox is rated higher. HappyBlockBox averages 5.0 out of 5 from 7 ratings, while PRISM SLICE averages 1.0 from 1 ratings.
Do HappyBlockBox or PRISM SLICE have ads?
Neither HappyBlockBox nor PRISM SLICE shows ads.
Which is updated more often, HappyBlockBox or PRISM SLICE?
HappyBlockBox ships an update fortnightly, and PRISM SLICE every 4 weeks. Most recently, HappyBlockBox was updated on October 2, 2026 and PRISM SLICE on October 6, 2026.

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