# Thread Fever vs Wool Off

The clearest difference is iOS requirement: Thread Fever at 13.0 against Wool Off's 15.0. On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Thread Fever sells 16 one-off in-app purchases and Wool Off sells 17 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 — 4.8 for Thread Fever against 4.8 for Wool Off. Both are backed by a comparable volume of ratings — 1.4K and 1.1K respectively. Written reviews are what separate them: 41% of Thread Fever's written reviews are positive against 33% of Wool Off's.

Thread Fever ships an update every 11 days, Wool Off every 2 weeks. Both last shipped on October 14, 2026.

## The numbers

| Metric | Thread Fever | Wool Off |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (1.4K ratings)](https://appshunter.io/ios/app/thread-fever/id6739344337/reviews) | [4.8 (1.1K ratings)](https://appshunter.io/ios/app/wool-off/id6758046336/reviews) |
| Number of ratings | **1.4K** | 1.1K |
| Positive reviews | **41.0% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 11 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 356 MB | 603 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Virtual Projects](https://appshunter.io/developer/1654921012) | [Talefun](https://appshunter.io/developer/1440135076) |

## What reviewers say

### Thread Fever

[App page](https://appshunter.io/ios/app/thread-fever/id6739344337)

Engage in a relaxing yet challenging puzzle game where you untangle colorful threads and sort them into matching boxes. Progress through levels by completing beautifully stitched designs and testing your strategic thinking.

**Highlights:** Color thread sorting, Knot untangling mechanics, Complete stitched designs, Boosters and power-ups, Weekly new levels, Global leaderboard

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (16)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Travel Deal | $0.99 | one-time |
| Mini Coin Pack | $1.99 | one-time |
| Special Bundle | $2.99 | one-time |
| Piggy Bank | $2.99 | one-time |
| Second Chance Offer | $5.99 | one-time |
| No Ads | $7.99 | one-time |
| Small Coin Pack | $7.99 | one-time |
| Elite Pass | $9.99 | one-time |
| Stitcher’s Bag | $9.99 | one-time |
| Medium Coin Pack | $14.99 | one-time |
| Crafter’s Chest | $19.99 | one-time |
| Big Coin Pack | $29.99 | one-time |
| Artisan’s Kit | $39.99 | one-time |
| Special Pack | $39.99 | one-time |
| Super Coin Pack | $54.99 | one-time |
| Mega Coin Pack | $99.99 | one-time |

**What reviewers like**

- 😊 Engaging and fun gameplay
- 🎮 Great escape and entertainment value
- 👁️ Strategic preview feature for planning ahead
- 🎨 Enjoyable thread/yarn collection mechanics

**What reviewers complain about**

- 📺 Excessive and long advertisements
- 💰 Aggressive monetization and pay-to-win mechanics
- 🐛 Frequent crashes and freezing issues
- 🔄 Repetitive level design after progression
- ⚠️ Game-breaking bugs blocking progression

**Reported bugs**

- Game crashes at end of levels without awarding rewards
- Freezing and locking up during gameplay
- Level 3 displays extra box preventing progression
- Level 29 yellow threads unclickable
- Level 121 threads cannot be collected

**Requested features**

- More levels beyond current cap (level 174)
- Increased difficulty progression instead of repetition
- Persistent power-ups that carry between levels
- Better reward-to-cost balance for in-game currency
- Ad-free experience that actually works


### Wool Off

[App page](https://appshunter.io/ios/app/wool-off/id6758046336)

Engage in a satisfying 3D puzzle experience by carefully unraveling wool knots. This game offers a relaxing challenge to exercise your brain, improve concentration, and enjoy a sense of accomplishment at your own pace.

**Highlights:** Satisfying wool unraveling puzzles, Relaxing 3D environments, Mindful brain exercise, Progressive difficulty, Stress-free gameplay, Sense of accomplishment

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Event02 | $1.99 | one-time |
| Coin Pack 1 | $1.99 | one-time |
| Event03 | $2.99 | one-time |
| Event04 | $3.99 | one-time |
| Event06 | $5.99 | one-time |
| Event07 | $6.99 | one-time |
| Coin Pack 2 | $7.99 | one-time |
| Remove Ads | $7.99 | one-time |
| Event10 | $9.99 | one-time |
| Store Pack 1 | $9.99 | one-time |
| Remove Ads Package | $10.99 | one-time |
| Store Pack 2 | $19.99 | one-time |
| Event29 | $28.99 | one-time |
| Event34 | $33.99 | one-time |
| Event37 | $36.99 | one-time |
| Event38 | $37.99 | one-time |
| Event46 | $99.99 | one-time |


## Frequently asked questions

### Is Thread Fever free?

Thread Fever is free to download, with in-app purchases available.

### Is Wool Off free?

Wool Off is free to download, with in-app purchases available.

### Which has better reviews, Thread Fever or Wool Off?

Thread Fever and Wool Off are both rated 4.8 out of 5 on the App Store, from 1.4K and 1.1K ratings respectively.

### Do Thread Fever or Wool Off have ads?

Both Thread Fever and Wool Off show ads.

### Which is updated more often, Thread Fever or Wool Off?

Thread Fever ships an update every 11 days, and Wool Off every 2 weeks. Most recently, Thread Fever was updated on October 14, 2026 and Wool Off on October 14, 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.*