# Crayon vs AI Mermaid Effect

The clearest difference is in-app purchases: Crayon at none against AI Mermaid Effect's 6. Crayon also leads on iOS requirement (11.0 vs 13.0). AI Mermaid Effect's advantage is update cadence (every 8 days vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. AI Mermaid Effect sells 6 in-app purchases, starting at $7.99 per 7 days. Crayon asks for nothing beyond the download.

Crayon ships an update every 3 weeks, AI Mermaid Effect every 8 days. The most recent releases landed on May 16, 2026 and August 17, 2026 respectively.

## The numbers

| Metric | Crayon | AI Mermaid Effect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (7 ratings)](https://appshunter.io/ios/app/ai-mermaid-effect-videfix/id6746768146/reviews)** |
| Number of ratings | — | **7** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Monetization | — | Subscription |
| Size | 21 MB | 64 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Brook Seaton](https://appshunter.io/developer/327728214) | [Volar Apps Yazilim Hizmetleri Limited Sirketi](https://appshunter.io/developer/1810828495) |

## What reviewers say

### Crayon

[App page](https://appshunter.io/ios/app/crayon/id930352736)

**Features:** macOS Compatibility

**In-app purchases:** none


### AI Mermaid Effect

[App page](https://appshunter.io/ios/app/ai-mermaid-effect-videfix/id6746768146)

Transform your photos into animated underwater videos with AI. This app offers a variety of trending effects to create unique content for social media. Easily generate realistic dance, anime, or superhero videos from your images.

**Highlights:** AI-powered photo to video transformation, Mermaid and underwater video effects, Variety of trending filters, Create dance, anime, and superhero videos, Realistic video generation, Temporary face data processing

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $7.99 | per 7 days |
| Yearly Premium Offer | $34.99 | per year |
| Yearly Premium | $44.99 | per year |
| Starter Pack | $4.99 | one-time |
| Pro Pack | $29.99 | one-time |
| Mega Pack | $99.99 | one-time |


## Frequently asked questions

### Is Crayon free?

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

### Is AI Mermaid Effect free?

AI Mermaid Effect is free to download, with in-app purchases available.

### Do Crayon or AI Mermaid Effect have ads?

Neither Crayon nor AI Mermaid Effect shows ads.

### Which is updated more often, Crayon or AI Mermaid Effect?

Crayon ships an update every 3 weeks, and AI Mermaid Effect every 8 days. Most recently, Crayon was updated on May 16, 2026 and AI Mermaid Effect on August 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.*