# Shape Fill vs Slither Thread

The clearest difference is update cadence: Slither Thread at every 6 days against Shape Fill's every 4 months. Shape Fill's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Shape Fill sells 3 one-off in-app purchases and Slither Thread sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Shape Fill ships an update every 4 months, Slither Thread every 6 days. The most recent releases landed on September 20, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Shape Fill | Slither Thread |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/shape-fill-clear-puzzle/id6746954833/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 6 days** |
| Monetization | Free with in-app purchases | — |
| Size | 131 MB | 254 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Astha Dhameliya](https://appshunter.io/developer/1795902485) | [Can Tekin Kuruuzum](https://appshunter.io/developer/1854107069) |

## What reviewers say

### Shape Fill

[App page](https://appshunter.io/ios/app/shape-fill-clear-puzzle/id6746954833)

Drag and fit smaller pieces into outlined shapes to complete satisfying puzzles. Progress through hundreds of levels with increasingly complex challenges and enjoy minimalist design with calming visuals.

**Highlights:** Drag and fit puzzle pieces, Complete outlined shapes, Hundreds of progressive levels, Satisfying animations, Minimalist design

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| 25 Hints | $1.99 | one-time |
| 60 Hints | $2.99 | one-time |


### Slither Thread

[App page](https://appshunter.io/ios/app/slither-thread/id6749856899)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coin 1000 | $1.99 | one-time |
| Fail Offer | $4.99 | one-time |
| Coin 5000 | $7.99 | one-time |
| No Ads | $9.99 | one-time |
| No Ads Bundle | $11.99 | one-time |
| Coin 10000 | $14.99 | one-time |
| Master Pack | $19.99 | one-time |
| Mega Pack | $29.99 | one-time |
| Coin 50000 | $54.99 | one-time |
| Coin 100000 | $99.99 | one-time |


## Frequently asked questions

### Is Shape Fill free?

Shape Fill is free to download, with in-app purchases available.

### Is Slither Thread free?

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

### Do Shape Fill or Slither Thread have ads?

Both Shape Fill and Slither Thread show ads.

### Which is updated more often, Shape Fill or Slither Thread?

Shape Fill ships an update every 4 months, and Slither Thread every 6 days. Most recently, Shape Fill was updated on September 20, 2026 and Slither Thread on September 19, 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.*