Comparison

Word Gravity Collection vs Lucky Twin Echo

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

Head to head
About

Word Gravity Collection

This collection offers six distinct word games, all featuring a gravity-based mechanic. Players find words in letter grids, with letters falling and rearranging after each successful word. It's a free, ad-free experience with no in-app purchases.

Highlights
  • Six unique word games
  • Gravity-based gameplay
  • Word dropping puzzles
  • Letter grid challenges
  • No in-app purchases
  • Completely free
Features
Read full description

WORD GRAVITY COLLECTION is a 6-in-1 word game collection all driven by gravity. Totally free. No in-app purchases!!  WORD DROP - Find words in a grid of letters. Once a word is scored the letters are removed from play and all remaining letters fall into place PERPETUAL WORDS - Pick words from a grid of letters. After the word scores it will be removed from the board and the remaining letters and replacement letters will fall into place and the game continues. WORD PLUNGE - Fill the top row with five letters. When full the top row will fall onto the play field. The bottom row will then be complete and will score. If you score > 0 the bottom row will disappear and the remaining letters will fall into place. =If you fail to score > 0 the bottom row will BLOCK. GRAVITY WORD - One-by-one DROP random letter tiles into a grid. Every word of two letters or more in any row or column will score. You also get bonus points for scoring multiple words in the same row or column. LETHAL LETTERS - Like Perpetual Words except red letters are deadly and you must you them before they hit the bottom or the game is over. WORD SLIP - A Word Drop game where after each word scored an entire row of letters falls onto the board.

About

Lucky Twin Echo

A unique puzzle game where you solve challenges using recordings of your own past actions. Each round involves creating an 'echo' of your movements to interact with the environment and overcome obstacles. With multiple echoes and intricate mechanics, master eleven distinct chambers.

Highlights
  • Record and replay your actions as echoes
  • Solve puzzles with up to three echoes
  • Interact with plates, levers, and wheels
  • Eleven unique chamber layouts
  • Undo last echo without restarting
  • No accounts, ads, or in-app purchases
Features
Read full description

A puzzle game where the only other player is a recording of you. Each round lasts twelve seconds. Record a route, tap stop, and it becomes an echo that repeats forever. Stand where someone needs to stand, then step away and be elsewhere. Up to three echoes at once, in cyan, blue and violet. Plates need weight held down. Levers and wheels need a hand at the right moment. A door opened by an echo on a plate stays open only as long as it waits. Eleven chambers, each with its own layout. A bridge that extends only while someone holds the lever behind you. A lamp carried into a shadowed corridor to make it walkable. A mirror that turns a beam into the door controller. A filter that ignores your first echo and answers only to a later one. Two mechanisms live for two and a half seconds each, so the window where they overlap is the whole puzzle. A clock core that opens the last door only if plate, lever, wheel and core wake in that order. If a chamber looks impossible, watch one full loop before recording. What blocks you is usually a detail on the board, not a limit on what you may do. Undo removes your last echo without restarting the chamber, so a mistimed route costs one recording and nothing else. No accounts, no ads, nothing to buy, no network requests. One save on your own device.

Screenshots

Word Gravity Collection4 screens
Lucky Twin Echo4 screens

Verdict

The call

The clearest difference is update cadence: Lucky Twin Echo at every 3 weeks against Word Gravity Collection's every 2 months. Word Gravity Collection's advantage is iOS requirement (9.0 vs 17.0). On price, rating, review sentiment and ratings volume 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

On the App Store both sit at effectively the same score — 1.0 for Word Gravity Collection against 1.0 for Lucky Twin Echo. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

UpkeepUpdate frequency

Word Gravity Collection ships an update every 2 months, Lucky Twin Echo every 3 weeks. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Word Gravity Collection versus Lucky Twin Echo: the parameters behind the verdict, then further details
ParameterWord Gravity CollectionLucky Twin Echo
PriceFreeFree
Rating1.0 (1 ratings)1.0 (2 ratings)
Positive reviews0.0% of reviews0.0% of reviews
Number of ratings12 — better
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better17.0
Further details — not scored
Size30 MB31 MB
Age rating4+4+
DeveloperMmpApps Corp.Daan Meijer

Customer experience

Word Gravity Collection

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

Lucky Twin Echo

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Word Gravity Collection

No in-app purchases

None

Lucky Twin Echo

No in-app purchases

Questions

Is Word Gravity Collection free?
Word Gravity Collection is free to download, with no in-app purchases.
Is Lucky Twin Echo free?
Lucky Twin Echo is free to download, with no in-app purchases.
Which has better reviews, Word Gravity Collection or Lucky Twin Echo?
Word Gravity Collection and Lucky Twin Echo are both rated 1.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do Word Gravity Collection or Lucky Twin Echo have ads?
Neither Word Gravity Collection nor Lucky Twin Echo shows ads.
Which is updated more often, Word Gravity Collection or Lucky Twin Echo?
Word Gravity Collection ships an update every 2 months, and Lucky Twin Echo every 3 weeks. Most recently, Word Gravity Collection was updated on November 6, 2026 and Lucky Twin Echo on October 31, 2026.

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