# Convertology vs 毛豆AI

The clearest difference is ads: 毛豆AI at none against Convertology's shown. 毛豆AI also leads on device support (3 vs 1) and iOS requirement (15.6 vs 18.6). On price, update cadence and in-app purchases there is nothing between them.

Both are free to download. Convertology sells 2 in-app purchases, starting at $3.99 per 7 days and 毛豆AI sells 7 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Convertology ships an update every 6 days, 毛豆AI every 9 days. The most recent releases landed on October 19, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Convertology | 毛豆AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/convertology/id6764801500/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 6 days** | Every 9 days |
| Monetization | Free with in-app purchases | — |
| Size | 53 MB | 51 MB |
| Requires iOS | 18.6 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ADNAN STRUJIC](https://appshunter.io/developer/1895920092) | [Nanjing YuJia Technology Co., Ltd.](https://appshunter.io/developer/1881176731) |

## What reviewers say

### Convertology

[App page](https://appshunter.io/ios/app/convertology/id6764801500)

This utility app offers precise unit conversions across a vast range of categories, from everyday measurements to specialized scientific and engineering units. It features a clean interface with quick search, favorites, history, and adjustable precision for efficient use in various settings.

**Highlights:** Extensive unit categories, Quick unit search, Favorites and history, Adjustable result precision, Light and dark mode interface, Copy and share results

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $3.99 | per 7 days |
| Yearly Premium | $29.99 | per year |


### 毛豆AI

[App page](https://appshunter.io/ios/app/ai/id6786977150)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员 | $2.99 | per 7 days |
| 月会员 | $4.99 | per month |
| 年会员 | $19.99 | per year |
| 500积分包 | $2.99 | one-time |
| 1500积分包 | $6.99 | one-time |
| 3000积分包 | $12.99 | one-time |
| 终身会员 | $39.99 | one-time |


## Frequently asked questions

### Is Convertology free?

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

### Is 毛豆AI free?

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

### Do Convertology or 毛豆AI have ads?

Convertology shows ads; 毛豆AI does not.

### Which is updated more often, Convertology or 毛豆AI?

Convertology ships an update every 6 days, and 毛豆AI every 9 days. Most recently, Convertology was updated on October 19, 2026 and 毛豆AI on October 7, 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.*