Comparison

Yarn the Worm vs HiddenForm

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

Head to head
About

Yarn the Worm

Untangle adorable yarn worms to weave cozy cocoons and hatch them into beautiful butterflies. This logic puzzle game offers a satisfying ASMR experience with hundreds of brain-training levels and helpful boosters. Play offline with no time limits.

Highlights
  • Tap and untangle yarn worms
  • Weave cocoons and hatch butterflies
  • Hundreds of brain-training levels
  • Satisfying ASMR unraveling visuals
  • Helpful boosters: Undo, Shuffle, Add Cocoon
  • Offline play, no time limits
Features
Read full description

Welcome to the vibrant world of Yarn the Worm! Get ready for a brand new color sorting puzzle experience where adorable yarn worms are tangled up in a massive jam. Your mission is to untangle them, weave cozy cocoons, and witness the magic of beautiful butterflies! Tap, Untangle, and Hatch! The rules are simple but require strategic thinking: - Tap on the unblocked yarn worms to collect them. - The worms will automatically unravel their strings and fly up to fill the empty cocoons at the top of the screen. - Once a cocoon reaches 100% capacity, it magically hatches into a beautiful butterfly! - Clear all the tangled worms from the board to win the level and unlock the next challenge. A Satisfying Logic Challenge The yarn worms are rolled, stacked, and tangled into countless fun shapes and mazes, such as hearts, stars, strawberries, and hourglasses. You must observe carefully, find the loose ends, and plan your tapping order so you do not run out of empty cocoon space! Key Features: - Adorable Graphics: Immerse yourself in a colorful world featuring funny and expressive yarn worms. - Satisfying ASMR: Experience the incredibly smooth and relaxing visual of unraveling yarn strings. - Brain-Training Puzzles: Hundreds of diverse levels, from easy warm-ups to brilliantly complex tangled shapes. - Helpful Boosters: Stuck in a tight jam? Use the Undo, Shuffle, or Add Cocoon boosters to turn the tide and keep playing. - Play Anywhere: No time limits, no pressure, and completely playable offline. Download Yarn the Worm! today to untangle the fun and collect the most vibrant butterflies!

About

HiddenForm

Create silhouette jigsaw puzzles with uniquely shaped pieces. Discover hidden details within the artwork and enjoy a tactile, satisfying assembly experience. Three puzzles are always free, with options to unlock more.

Highlights
  • Silhouette jigsaw puzzles
  • Uniquely shaped pieces
  • Hidden details discovery
  • 3D wood/plexiglass pieces
  • Tactile connection sounds
  • Spacious landscape assembly table
  • Progress saving
Features
Read full description

Make room for wonder with HiddenForm: a collection of richly illustrated silhouette puzzles for iPhone and iPad. Build lions, hummingbirds, trees, cats, dogs and more from uniquely shaped pieces. Discover tiny animals and botanical shapes hidden among the cuts, and follow the artwork's natural outline instead of a rectangular border. A TABLE OF YOUR OWN • Choose 24, 48 or 80 pieces. • Explore sculpted 3D wood or plexiglass pieces with rounded edges and tactile connection sounds. • Assemble anywhere on a spacious landscape table. Move connected sections together, pinch to zoom, and use two fingers to tilt and rotate. • Feel magnetic connections as matching pieces snap together. • Open the reference painting, emphasize outer edges, or highlight a matching pair when you want a little help. • Start in fullscreen with the controls tucked away. A FINISH WORTH ENJOYING Celebrate the final connection with a playful, material-inspired reveal. Then zoom into your finished painting and explore its details. Your puzzle progress saves on your device so you can return later. THREE FREE FAVORITES Lion, elephant and zebra are always included. Watch a rewarded video before starting or restarting any additional puzzle, or make a one-time Remove All Ads purchase to play the full collection without videos. No subscription is required. An internet connection is needed for rewarded videos and purchases. No game account is required. Requires iOS or iPadOS 26 or later. Follow @hiddenformpuzzles

Screenshots

Yarn the Worm4 screens
HiddenForm4 screens

Verdict

The call

The clearest difference is update cadence: HiddenForm at every 2 days against Yarn the Worm's every 2 weeks. Yarn the Worm's advantage is iOS requirement (15.0 vs 26.0). On price, rating, ratings volume and ads 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. Yarn the Worm sells 7 one-off in-app purchases and HiddenForm sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Yarn the Worm against 5.0 for HiddenForm. Both are backed by a comparable volume of ratings — 8 and 8 respectively.

UpkeepUpdate frequency

Yarn the Worm ships an update every 2 weeks, HiddenForm every 2 days. Both last shipped on November 6, 2026.

Scorecard2 real differences · 8 level
Yarn the Worm versus HiddenForm: the parameters behind the verdict, then further details
ParameterYarn the WormHiddenForm
PriceFreeFree
Rating4.9 (8 ratings)5.0 (8 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings88
Update frequencyEvery 2 weeksEvery 2 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better26.0
Further details — not scored
Size248 MB96 MB
Age rating4+4+
DeveloperGoldTrisKyndlo LLC

Customer experience

Yarn the Worm

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

HiddenForm

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

7 purchases

Yarn the Worm

One-time7
  • 1000 coins$1.99
  • 5000 coins$7.99
  • No ads$7.99
Show 4 more
  • 10000 coins$14.99
  • 25000 coins$29.99
  • 50000 coins$54.99
  • 100000 coins$99.99
2 purchases

HiddenForm

One-time2
  • Puzzle Collection$1.99
  • Remove all ads$4.99

Questions

Is Yarn the Worm free?
Yarn the Worm is free to download, with in-app purchases available.
Is HiddenForm free?
HiddenForm is free to download, with in-app purchases available.
Which has better reviews, Yarn the Worm or HiddenForm?
HiddenForm is rated higher. Yarn the Worm averages 4.9 out of 5 from 8 ratings, while HiddenForm averages 5.0 from 8 ratings.
Do Yarn the Worm or HiddenForm have ads?
Both Yarn the Worm and HiddenForm show ads.
Which is updated more often, Yarn the Worm or HiddenForm?
Yarn the Worm ships an update every 2 weeks, and HiddenForm every 2 days. Most recently, Yarn the Worm was updated on November 6, 2026 and HiddenForm on November 6, 2026.

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