# Shells! vs Caterpillar Crawling Stickers

The clearest difference is iOS requirement: Caterpillar Crawling Stickers at 15.0 against Shells!'s 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Shells! costs $0.99 and Caterpillar Crawling Stickers $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Shells! ships an update every 76 months, Caterpillar Crawling Stickers every 40 months. The most recent releases landed on August 8, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Shells! | Caterpillar Crawling Stickers |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | **[3.0 (6 ratings)](https://appshunter.io/ios/app/shells/id1273622048/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 76 months | **Every 40 months** |
| Monetization | Paid | — |
| Size | 12 MB | 5 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SpeckTech Inc.](https://appshunter.io/developer/1069131306) | [Aman Kumar](https://appshunter.io/developer/1001408105) |

## What reviewers say

### Shells!

[App page](https://appshunter.io/ios/app/shells/id1273622048)

Enhance your messages with a collection of 34 high-resolution stickers featuring various shells. This app offers a fun way to express yourself visually in conversations.

**Highlights:** 34 retina shell stickers, Enhance message conversations, Visually expressive, Easy to use

**In-app purchases:** none


### Caterpillar Crawling Stickers

[App page](https://appshunter.io/ios/app/caterpillar-crawling-stickers/id1278271420)

**In-app purchases:** none


## Frequently asked questions

### Is Shells! free?

Shells! costs $0.99, with no in-app purchases.

### Is Caterpillar Crawling Stickers free?

Caterpillar Crawling Stickers costs $0.99, with no in-app purchases.

### Do Shells! or Caterpillar Crawling Stickers have ads?

Neither Shells! nor Caterpillar Crawling Stickers shows ads.

### Which is updated more often, Shells! or Caterpillar Crawling Stickers?

Shells! ships an update every 76 months, and Caterpillar Crawling Stickers every 40 months. Most recently, Shells! was updated on August 8, 2026 and Caterpillar Crawling Stickers on September 15, 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.*