# Slither Sort vs Fill Perfect

The clearest difference is in-app purchases: Slither Sort at none against Fill Perfect's 7. Fill Perfect's advantage is update cadence (every 6 days vs every 5 weeks) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Fill Perfect sells 7 one-off in-app purchases. Slither Sort asks for nothing beyond the download.

Slither Sort ships an update every 5 weeks, Fill Perfect every 6 days. The most recent releases landed on October 4, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Slither Sort | Fill Perfect |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 weeks | **Every 6 days** |
| Size | 210 MB | 233 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Turker Kerim Akpinar](https://appshunter.io/developer/1872475385) | [RIO MASTER DMCC](https://appshunter.io/developer/1736738912) |

## What reviewers say

### Slither Sort

[App page](https://appshunter.io/ios/app/slither-sort/id6779629806)

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

**In-app purchases:** none


### Fill Perfect

[App page](https://appshunter.io/ios/app/fill-perfect/id6805786480)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 500 gold | $1.99 | one-time |
| 1000 Gold | $3.99 | one-time |
| No ads | $8.99 | one-time |
| 5000 Gold | $9.99 | one-time |
| 25000 Gold | $34.99 | one-time |
| 25000 Gold | $59.99 | one-time |
| 50000 Gold | $89.99 | one-time |


## Frequently asked questions

### Is Slither Sort free?

Slither Sort is free to download, with no in-app purchases.

### Is Fill Perfect free?

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

### Do Slither Sort or Fill Perfect have ads?

Both Slither Sort and Fill Perfect show ads.

### Which is updated more often, Slither Sort or Fill Perfect?

Slither Sort ships an update every 5 weeks, and Fill Perfect every 6 days. Most recently, Slither Sort was updated on October 4, 2026 and Fill Perfect on October 17, 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.*