Comparison

ECHO vs Illusion Corridor

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

Head to head
About

ECHO

Features
Read full description

Every digit you place echoes across the board. ECHO GRID is a fresh kind of logic puzzle about reading the ripples. Place digits 1-3 on a 5x5 board. Each digit sends an echo up, down, left and right, traveling as far as its own value and adding that value to every cell it passes through. Match the target sum of every row and column to clear the stage! SIMPLE TO LEARN, DEEP TO MASTER - One rule: place digits. You'll get it in a minute - A single digit affects several rows and columns at once - plan ahead - Every puzzle has exactly one solution. Pure logic, no guessing SPECIAL CELLS CHANGE EVERYTHING - Walls block echoes - Mirrors bend them 90 degrees - Amplifiers add +1 to passing echoes The same 5x5 board feels completely different with each combination. PLENTY TO PLAY - 100 stages, stepping up from basics to walls, mirrors, amplifiers and beyond - No locks - jump straight to any stage you like - A Daily Challenge shared by players worldwide, with streaks and lifetime stats THINK AT YOUR OWN PACE - Long-press any cell to see exactly which echoes reach it and from where - Stuck? A hint corrects just one cell - Calm neon visuals and soft, soothing sound PERFECT FOR - Fans of sudoku-style and logic puzzles - Short brain workouts on your commute - Quiet, focused play before bed - works offline Available in English and Japanese. Listen to the echoes. One digit changes the whole board.

About

Illusion Corridor

This isometric puzzle game challenges players to manipulate perspective and mechanisms to create impossible paths. Explore seven chapters with 65 handcrafted levels, featuring rotating bridges, sliding platforms, and more. Enjoy a quiet, offline experience with no ads or in-app purchases after the initial unlock.

Highlights
  • Isometric perspective puzzles
  • Manipulate mechanisms and platforms
  • 65 handcrafted levels
  • Offline play
  • No ads or subscriptions
  • Multiple languages supported
Features
Read full description

Illusion Corridor is a quiet isometric puzzle game about perspective. Height and distance cannot always be trusted. Rotate golden mechanisms, slide platforms, raise towers, and align paths that should never meet. When the eye believes, an impossible road appears. Seven chapters and 65 handcrafted levels: - A measured journey from intuitive puzzles to concealed mechanisms, linked axes, and three-character cooperation - Rotating bridges, sliding platforms, lifts, hidden doors, crumbling tiles, and night watchers - No ads, energy systems, loot boxes, or subscriptions - Play all 10 levels of Chapter One plus four later chapter previews for free - One purchase permanently unlocks the remaining 51 levels - Fully offline, with no personal data collection - English, Simplified Chinese, and Japanese Enter the lone tower, cross the court of mechanisms, and walk through the long night until every impossible path becomes one.

Screenshots

ECHO4 screens
Illusion Corridor4 screens

Verdict

The call

The clearest difference is in-app purchases: ECHO at none against Illusion Corridor's 1. ECHO also leads on device support (3 vs 1). On price, ads 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. Illusion Corridor sells 1 one-off in-app purchase. ECHO asks for nothing beyond the download.

Scorecard2 real differences · 7 level
ECHO versus Illusion Corridor: the parameters behind the verdict, then further details
ParameterECHOIllusion Corridor
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequency—Every 2 days
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.0
Further details — not scored
Size101 MB3 MB
Age rating4+4+
Developerwapon Inc.Qingyu Chen

In-app purchases

None

ECHO

No in-app purchases

1 purchases

Illusion Corridor

One-time1
  • Full Game$2.99

Questions

Is ECHO free?
ECHO is free to download, with no in-app purchases.
Is Illusion Corridor free?
Illusion Corridor is free to download, with in-app purchases available.
Do ECHO or Illusion Corridor have ads?
Neither ECHO nor Illusion Corridor shows ads.

Other comparisons