# Caveduck vs sujo

The clearest difference is price: Caveduck at Free against sujo's $0.99. Caveduck also leads on iOS requirement (15.1 vs 17.0). sujo's advantage is in-app purchases (none vs 10) and ads (none vs shown). On update cadence and device support there is nothing between them.

Caveduck is free to download; sujo costs $0.99 up front. Caveduck sells 10 one-off in-app purchases. sujo asks for nothing beyond the download.

Caveduck ships an update every 3 weeks, sujo every 2 weeks. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Caveduck | sujo |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[3.8 (45 ratings)](https://appshunter.io/ios/app/caveduck-ai-character-chat/id6651829734/reviews)** | — |
| Number of ratings | **45** | — |
| Positive reviews | 91.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 116 MB | 3 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Warp Space Inc.](https://appshunter.io/developer/1763977798) | [JaeHoon Ma](https://appshunter.io/developer/1872307920) |

## What reviewers say

### Caveduck

[App page](https://appshunter.io/ios/app/caveduck-ai-character-chat/id6651829734)

Engage in dynamic conversations with over 40,000 unique AI characters. Create and customize your own companions for unfiltered chats on any topic. Experience realistic AI interactions designed for privacy and enjoyment.

**Highlights:** 40,000+ AI characters, Character creation and customization, Unfiltered conversations, Realistic AI interactions, Privacy protection, User feedback integration

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 500 Wings (Special Offer) | $2.99 | one-time |
| 5,000 Wings | $5.99 | one-time |
| 500 Wing | $5.99 | one-time |
| 1,000 Wings (Special Offer) | $5.99 | one-time |
| 10,000 Wings | $11.99 | one-time |
| 1,000 Wings | $11.99 | one-time |
| 30,000 Wings | $35.99 | one-time |
| 3,000 Wings | $35.99 | one-time |
| 50,000 Wings | $59.99 | one-time |
| 5,000 Wings | $59.99 | one-time |

**What reviewers like**

- 🚀 Excellent AI capabilities
- 👍 User-friendly interface
- 🎨 Wide selection of AI models
- 💰 Generous point system
- 🤖 Immersive AI interactions

**What reviewers complain about**

- 🐛 Occasional login issues

**Reported bugs**

- Sign-in via Google not working

**Requested features**

- More AI model customization options
- Expanded NSFW content support


### sujo

[App page](https://appshunter.io/ios/app/sujo/id6800632072)

This app simulates a virtual aquarium where fish swim among letters. Tap the screen to feed them, watch them gather, and enjoy a calming visual experience. It also includes a clock and a timer with customizable completion alerts.

**Highlights:** 12 types of aquariums, 11 fish color variations, Digital and analog clock, Customizable timer with 9 completion sounds, Interactive feeding mechanic, Full-screen display, Automatic launch via shortcuts

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Caveduck free?

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

### Is sujo free?

sujo costs $0.99, with no in-app purchases.

### Do Caveduck or sujo have ads?

Caveduck shows ads; sujo does not.

### Which is updated more often, Caveduck or sujo?

Caveduck ships an update every 3 weeks, and sujo every 2 weeks. Most recently, Caveduck was updated on November 4, 2026 and sujo on October 31, 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.*