# Thread Fever vs Darts 501 Scorekeeper

The clearest difference is ads: Darts 501 Scorekeeper at none against Thread Fever's shown. Thread Fever's advantage is iOS requirement (13.0 vs 26.5). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Thread Fever sells 10 one-off in-app purchases and Darts 501 Scorekeeper sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Thread Fever | Darts 501 Scorekeeper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (1.7K ratings)](https://appshunter.io/ios/app/thread-fever/id6739344337/reviews)** | — |
| Number of ratings | **1.7K** | — |
| Positive reviews | 41.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 11 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 356 MB | 6 MB |
| Requires iOS | **13.0** | 26.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Virtual Projects](https://appshunter.io/developer/1654921012) | [Jun Yamabe](https://appshunter.io/developer/1732682049) |

## 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 (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 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 |

**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


### Darts 501 Scorekeeper

[App page](https://appshunter.io/ios/app/darts-501-scorekeeper/id6780306395)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy Me a Coffee | $0.99 | one-time |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Thread Fever free?

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

### Is Darts 501 Scorekeeper free?

Darts 501 Scorekeeper is free to download, with in-app purchases available.

### Do Thread Fever or Darts 501 Scorekeeper have ads?

Thread Fever shows ads; Darts 501 Scorekeeper does not.

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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.*