Comparison

simian.interface++ vs Sliding Puzzle

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

Head to head
About

simian.interface++

An abstract puzzle game that challenges players with pattern recognition and intuition. It features a unique soundtrack, an original version of the game, and a new infinite mode with procedurally generated content for endless replayability.

Highlights
  • Abstract puzzle experience
  • Pattern recognition challenges
  • Intuitive gameplay
  • Original game included
  • Infinite_loop mode
  • Procedurally generated levels
Features
Read full description

simian.interface++, the fully featured update to the Flash game simian.interface, is an abstract puzzle experience for simian participants of all ages and abilities. There are no explicit rules, no instructions, and very simple controls. Inspired by tabletop puzzles, modern art, and cognitive psychology experiments, simian.interface++ presents challenges that must be solved using pattern recognition, intuition, and experimentation. features: - an incredible soundtrack composed by chiptune artist Note! - the original simian.interface - the new 'infinite_loop' mode, with procedurally generated levels, and randomized music and story content! infinite replay value! *This is essentially the same version of the game that was published on iOS by Chillingo from 2014-2017. However, it has been updated for modern devices, and is now self-published so we can ensure that it stays functional and available. Apologies to anyone who purchased the old version.

About

Sliding Puzzle

Features
Read full description

Features: Board Sizes: Choose your challenge from 3×3 to 8×8 grids. Auto Save & Resume: Exit the app anytime—your progress is always saved. Next Number Hint: color hints help you find your next tile faster and with less frustration. Match Number Animation: Enjoy satisfying visual feedback when a tile reaches its correct position. Line Match Effect: Get rewarded with extra feedback every time you complete a full row—keeps the game engaging even mid-play. Retry Same Board: Play the same shuffled board again to improve your time or challenge a friend to beat it. Shuffle Option: Don’t like the initial layout? Reshuffle as many times as you like before starting. — Sliding Puzzle: Essential is a modern take on the classic 15 puzzle (number puzzle) experience. Designed with minimal visuals and a focus on tactile satisfaction, this game is perfect for quick sessions or deep focus play.

Screenshots

simian.interface++4 screens
Sliding Puzzle4 screens

Verdict

The call

The clearest difference is in-app purchases: Sliding Puzzle at none against simian.interface++'s 1. simian.interface++'s advantage is ads (none vs shown) and update cadence (daily vs every 2 days). 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. simian.interface++ sells 1 one-off in-app purchase. Sliding Puzzle asks for nothing beyond the download.

UpkeepUpdate frequency

simian.interface++ ships an update daily, Sliding Puzzle every 2 days. The most recent releases landed on June 5, 2026 and September 11, 2026 respectively.

Scorecard3 real differences · 7 level
simian.interface++ versus Sliding Puzzle: the parameters behind the verdict, then further details
Parametersimian.interface++Sliding Puzzle
PriceFreeFree
Rating5.0 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyDaily — betterEvery 2 days
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size152 MB62 MB
Age rating4+4+
Developervested interest LLCHiroki Nakamura

In-app purchases

1 purchases

simian.interface++

One-time1
  • Buy Full Game$1.99
None

Sliding Puzzle

No in-app purchases

Questions

Is simian.interface++ free?
simian.interface++ is free to download, with in-app purchases available.
Is Sliding Puzzle free?
Sliding Puzzle is free to download, with no in-app purchases.
Do simian.interface++ or Sliding Puzzle have ads?
Sliding Puzzle shows ads; simian.interface++ does not.
Which is updated more often, simian.interface++ or Sliding Puzzle?
simian.interface++ ships an update daily, and Sliding Puzzle every 2 days. Most recently, simian.interface++ was updated on June 5, 2026 and Sliding Puzzle on September 11, 2026.

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