Comparison

EPURER vs Logic Puzzle Library

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

Head to head
About

EPURER

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A solid block floats in a bare room. Two walls stand behind it, and each one has a hole cut into it. Turn the block until it fits through both at once. That is the whole game. HOW IT WORKS The block casts two shapes: one against the front wall, one against the side. Turning it changes both at the same time, and that is the difficulty. Line up the front and the side falls apart. Fix the side and the front is gone. Somewhere among the twenty-four ways a solid can sit, there is an angle that answers both. Pick an axis, pick a direction, and the block turns a quarter turn. Rotation costs nothing. Turn as long as you like, in any order, and take the piece apart in your head as you go. When you think you have it, cast. The block leaves your hands. Two copies fly, one at each wall. They pass through, or they do not. WHAT IS INSIDE 924 stages, each one a different solid. Four cells, five cells, six cells. Every stage was checked before it shipped: the shape genuinely fits, the number of solutions is known, and no stage is solved by accident at the angle it starts from. The stages are ordered by how forgiving they are. Early on, a third of all angles will work. By the end, one in twenty-four. Nothing else changes, no new rules arrive, no mechanic is withheld from you. The room stays the same room. Only the margin narrows. Thirty seconds a stage. When the clock runs out the block is cast as it stands, so the timer never simply takes the stage away from you. It makes you commit. Miss, and you try again. There is no limit, no penalty, no score to protect. A wrong angle costs you nothing but the wish to see it work. THE ROOM Everything is drawn the way a full-size plan is drawn on a workshop wall. Ruled paper, thin lines, one earth pigment for the walls and three for the axes. Nothing glows, nothing celebrates. When the block passes through, the wall simply stops being a drawing and becomes light. The music is a piano, written rather than sampled from a loop: a walking bass under a running figure, in the manner of a keyboard prelude. As the stages tighten, the key darkens by one step at a time, from Lydian down to Aeolian. You may not notice it happening. You will notice where you have arrived. PLAYING Tap only. Two taps to turn, one to cast. It works on a phone held in one hand. Your progress is kept on the device. EPURER is French for stripping a thing back to what it is. There is one block, one room, and one right angle. Find it.

About

Logic Puzzle Library

Features
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Logic Puzzle Library Pencil-and-paper logic, one shelf. Start with a relaxing line puzzle, then move on to boards that read like small proofs: lights that may not see each other, diagonals that must never close a loop, bridges that count, a fleet hidden by its numbers. Logic puzzles, all in one app - no account, no sign-in, and every game works offline. DOT CONNECT - NUMBERLINK Draw a path between each pair of matching dots and cover every cell on the board. Redraw a color as often as you like - the old path is erased, never penalised. LIGHT UP - AKARI Tap a cell and a light shines up, down, left and right until a wall stops it. Light every dark cell, but never let two lights see each other. Numbered walls say how many lights touch them. SLANT Every square takes one diagonal. The numbers sit on the dots and count the diagonals that touch them, and the lines may never close a loop. Tap a square to flip its line. HASHI - BRIDGES Each island shows how many bridges must reach it. Drag from island to island, never cross two bridges, and finish with every island joined into one network. BIMARU FLEET LOGIC A fleet is hidden in the grid. The numbers on the edges count the ship squares in each row and column, and ships never touch - not even at the corners. WHAT CHANGED Dot Connect has grown into a collection. One coin balance now covers every game, and the daily bonus comes once a day for the whole app. Your Dot Connect progress and coins carry over. ONE APP, NO ACCOUNT Free, with ads. Nothing is locked behind a purchase. Every board has an answer you can reach by logic alone, and hints are there when you want them.

Screenshots

EPURER3 screens
Logic Puzzle Library4 screens

Verdict

The call

EPURER and Logic Puzzle Library are too close to call on the numbers: across 5 compared parameters โ€” price, ads, in-app purchases and device support among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
EPURER versus Logic Puzzle Library: the parameters behind the verdict, then further details
ParameterEPURERLogic Puzzle Library
PriceFreeFree
Update frequencyโ€”Weekly
AdsYesYes
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, iPod โ€” better
Requires iOS15.615.0 โ€” better
Further details โ€” not scored
Size7 MB31 MB
Age rating4+4+
Developeroffice-canard gamesGyuhyeon Jeon

In-app purchases

None

EPURER

No in-app purchases

None

Logic Puzzle Library

No in-app purchases

Questions

Is EPURER free?
EPURER is free to download, with no in-app purchases.
Is Logic Puzzle Library free?
Logic Puzzle Library is free to download, with no in-app purchases.
Do EPURER or Logic Puzzle Library have ads?
Both EPURER and Logic Puzzle Library show ads.

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