# Duck Calculator vs Cat Bowl

The clearest difference is update cadence: Cat Bowl at every 2 days against Duck Calculator's every 7 months. Duck Calculator's advantage is price ($0.99 vs $2.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Duck Calculator costs $0.99 and Cat Bowl $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Duck Calculator ships an update every 7 months, Cat Bowl every 2 days. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Duck Calculator | Cat Bowl |
| --- | --- | --- |
| Price | **$0.99** | $2.99 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 days** |
| Monetization | Paid | Paid |
| Size | 1 MB | 3 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [德铭 何](https://appshunter.io/developer/1690983330) | [幻物藏科技](https://appshunter.io/developer/1633066257) |

## What reviewers say

### Duck Calculator

[App page](https://appshunter.io/ios/app/duck-calculator/id6739608733)

This app appears as a standard calculator but has a hidden "magic" mode. It can display preset text or images when a specific number is calculated, offering creative surprises for pranks or confessions.

**Highlights:** Accurate standard calculations, Magic mode for custom results, Display preset text or pictures, Customizable magic effects, Secret and low-key design

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

**In-app purchases:** none


### Cat Bowl

[App page](https://appshunter.io/ios/app/cat-bowl-develop-on-iphone/id6742109885)

This tool uses AI to convert your spoken words into mobile-friendly HTML web pages. Save your ideas as persistent, editable pages locally for notes, to-dos, or learning materials.

**Highlights:** Voice to webpage conversion, Local data persistence, One-tap reset, Privacy-focused design, Minimalist user interface

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

**In-app purchases:** none


## Frequently asked questions

### Is Duck Calculator free?

Duck Calculator costs $0.99, with no in-app purchases.

### Is Cat Bowl free?

Cat Bowl costs $2.99, with no in-app purchases.

### Do Duck Calculator or Cat Bowl have ads?

Neither Duck Calculator nor Cat Bowl shows ads.

### Which is updated more often, Duck Calculator or Cat Bowl?

Duck Calculator ships an update every 7 months, and Cat Bowl every 2 days. Most recently, Duck Calculator was updated on November 4, 2026 and Cat Bowl on October 30, 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.*