# Yarn the Worm vs HiddenForm

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.

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.

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.

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

## The numbers

| Metric | Yarn the Worm | HiddenForm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (8 ratings)](https://appshunter.io/ios/app/yarn-the-worm/id6808527099/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/hiddenform/id6809650487/reviews)** |
| Number of ratings | 8 | 8 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 248 MB | 96 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [GoldTris](https://appshunter.io/developer/6789519254) | [Kyndlo LLC](https://appshunter.io/developer/1878300995) |

## What reviewers say

### Yarn the Worm

[App page](https://appshunter.io/ios/app/yarn-the-worm/id6808527099)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1000 coins | $1.99 | one-time |
| 5000 coins | $7.99 | one-time |
| No ads | $7.99 | one-time |
| 10000 coins | $14.99 | one-time |
| 25000 coins | $29.99 | one-time |
| 50000 coins | $54.99 | one-time |
| 100000 coins | $99.99 | one-time |


### HiddenForm

[App page](https://appshunter.io/ios/app/hiddenform/id6809650487)

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:** macOS Compatibility, iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Puzzle Collection | $1.99 | one-time |
| Remove all ads | $4.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*