# Thread Fever vs Sand Jam!

The clearest difference is review sentiment: Thread Fever at 41% against Sand Jam!'s 20%. Thread Fever also leads on rating (4.8 vs 4.6). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Thread Fever sells 16 one-off in-app purchases and Sand Jam! sells 13 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Thread Fever holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 1.4K and 833 respectively. Written reviews point the same way: 41% of Thread Fever's written reviews are positive against 20% of Sand Jam!'s.

Thread Fever ships an update every 11 days, Sand Jam! fortnightly. Both last shipped on October 14, 2026.

## The numbers

| Metric | Thread Fever | Sand Jam! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (1.4K ratings)](https://appshunter.io/ios/app/thread-fever/id6739344337/reviews)** | [4.6 (833 ratings)](https://appshunter.io/ios/app/sand-jam/id6740991054/reviews) |
| Number of ratings | **1.4K** | 833 |
| Positive reviews | **41.0% of reviews** | 20.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 11 days** | Fortnightly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 356 MB | 447 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Virtual Projects](https://appshunter.io/developer/1654921012) | [Voodoo](https://appshunter.io/developer/714804730) |

## 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


### Sand Jam!

[App page](https://appshunter.io/ios/app/sand-jam/id6740991054)

Command stickmen to fill tiles with pixels and reveal a pixel art masterpiece. Strategically place your stickmen to stash areas and complete increasingly complex levels. Unlock stunning designs as you progress.

**Highlights:** Command stickmen to fire projectiles, Fill tiles with required pixels, Reveal pixel art masterpieces, Strategically place stickmen, Unlock pixel art designs, Progress through complex levels

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

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coin Pack 1 | $1.99 | one-time |
| Refill Pack | $4.99 | one-time |
| No Ads | $7.99 | one-time |
| Coin Pack 2 | $7.99 | one-time |
| Starter Pack | $9.99 | one-time |
| No Ads Bundle | $14.99 | one-time |
| Coin Pack 3 | $14.99 | one-time |
| Small Bundle | $19.99 | one-time |
| Coin Pack 4 | $29.99 | one-time |
| Medium Bundle | $29.99 | one-time |
| Large Bundle | $39.99 | one-time |
| Coin Pack 5 | $49.99 | one-time |
| Coin Pack 6 | $99.99 | one-time |

**What reviewers like**

- 👍 Excellent little time killer
- 🚀 Fun and relaxing game

**What reviewers complain about**

- 🐛 Broken at level 255
- 🐛 Bugs and glitches
- 🐛 Levels become pointless after a certain point

**Reported bugs**

- Level 255 is broken, not enough blocks to complete the level
- Levels become unwinnable due to missing blocks
- Incorrect block colors appearing in levels

**Requested features**

- Update to fix level 255 and other broken levels
- More content and levels


## Frequently asked questions

### Is Thread Fever free?

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

### Is Sand Jam! free?

Sand Jam! is free to download, with in-app purchases available.

### Which has better reviews, Thread Fever or Sand Jam!?

Thread Fever is rated higher. Thread Fever averages 4.8 out of 5 from 1.4K ratings, while Sand Jam! averages 4.6 from 833 ratings.

### Do Thread Fever or Sand Jam! have ads?

Both Thread Fever and Sand Jam! show ads.

### Which is updated more often, Thread Fever or Sand Jam!?

Thread Fever ships an update every 11 days, and Sand Jam! fortnightly. Most recently, Thread Fever was updated on October 14, 2026 and Sand Jam! 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.*