# Sorting Stacks vs Pencil Loop!

Sorting Stacks and Pencil Loop! both sit at 4.7 stars, but that hides the real split: 39% of Pencil Loop!'s written reviews are positive against 0% of Sorting Stacks's. Pencil Loop! also leads on ratings volume (687 vs 49). Sorting Stacks's advantage is in-app purchases (none vs 10). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Pencil Loop! sells 10 one-off in-app purchases. Sorting Stacks asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Sorting Stacks against 4.7 for Pencil Loop!. That said, the two scores are not equally well evidenced: Pencil Loop! has 687 ratings behind it against 49, so its average is the more settled of the two. Written reviews are what separate them: 0% of Sorting Stacks's written reviews are positive against 39% of Pencil Loop!'s.

Sorting Stacks ships an update fortnightly, Pencil Loop! every 10 days. The most recent releases landed on August 17, 2026 and September 4, 2026 respectively.

## The numbers

| Metric | Sorting Stacks | Pencil Loop! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (49 ratings)](https://appshunter.io/ios/app/sorting-stacks/id6751955027/reviews) | **[4.7 (687 ratings)](https://appshunter.io/ios/app/pencil-loop/id6753226130/reviews)** |
| Number of ratings | 49 | **687** |
| Positive reviews | 0.0% of reviews | **39.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | **Every 10 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 228 MB | 496 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Ela Game](https://appshunter.io/developer/1536955498) | [Rollic Games](https://appshunter.io/developer/1452111779) |

## What reviewers say

### Sorting Stacks

[App page](https://appshunter.io/ios/app/sorting-stacks/id6751955027)

A fast-paced color-matching puzzle game where players launch colored characters to smash matching blocks. Strategize your launches to clear the grid before the timer runs out and avoid filling the board.

**Highlights:** Color-coded character launching, Matching block-smashing, Timed gameplay, Strategy-based challenges, Fast-paced action

**Features:** macOS Compatibility

**In-app purchases:** none


### Pencil Loop!

[App page](https://appshunter.io/ios/app/pencil-loop/id6753226130)

Engage in a relaxing art puzzle game where you guide pencil boxes through a loop to sharpen and color them. Reveal vibrant hidden images step by step with simple logic and satisfying animations. Enjoy hundreds of handcrafted levels for a calming yet addictive experience.

**Highlights:** Sharpen and color pencil boxes, Reveal hidden colorful images, Hundreds of handcrafted levels, Relaxing, no-timer gameplay, Offline play, Simple one-touch controls

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coin Pack 1 | $1.99 | one-time |
| Rescue Offer | $4.99 | one-time |
| Coin Pack 2 | $7.99 | one-time |
| Mini Bundle | $9.99 | one-time |
| Coin Pack 3 | $14.99 | one-time |
| Medium Bundle | $19.99 | one-time |
| Super Offer | $29.99 | one-time |
| Coin Pack 4 | $29.99 | one-time |
| Coin Pack 5 | $54.99 | one-time |
| Coin Pack 6 | $99.99 | one-time |


## Frequently asked questions

### Is Sorting Stacks free?

Sorting Stacks is free to download, with no in-app purchases.

### Is Pencil Loop! free?

Pencil Loop! is free to download, with in-app purchases available.

### Which has better reviews, Sorting Stacks or Pencil Loop!?

Pencil Loop! is rated higher. Sorting Stacks averages 4.7 out of 5 from 49 ratings, while Pencil Loop! averages 4.7 from 687 ratings.

### Do Sorting Stacks or Pencil Loop! have ads?

Both Sorting Stacks and Pencil Loop! show ads.

### Which is updated more often, Sorting Stacks or Pencil Loop!?

Sorting Stacks ships an update fortnightly, and Pencil Loop! every 10 days. Most recently, Sorting Stacks was updated on August 17, 2026 and Pencil Loop! on September 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*