# 妙笔AI vs MD Calculator

The clearest difference is review sentiment: MD Calculator at 60% against 妙笔AI's 0%. MD Calculator also leads on rating (4.5 vs 1.0) and ratings volume (79 vs 4). 妙笔AI's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. MD Calculator sells 1 one-off in-app purchase. 妙笔AI asks for nothing beyond the download.

MD Calculator holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: MD Calculator has 79 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of 妙笔AI's written reviews are positive against 60% of MD Calculator's.

妙笔AI ships an update every 3 weeks, MD Calculator fortnightly. The most recent releases landed on October 7, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | 妙笔AI | MD Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (4 ratings)](https://appshunter.io/ios/app/ai/id6444692604/reviews) | **[4.5 (79 ratings)](https://appshunter.io/ios/app/md-calculator/id6463897900/reviews)** |
| Number of ratings | 4 | **79** |
| Positive reviews | 0.0% of reviews | **59.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 914 MB | 32 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Vision Pro |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Yuanyue Technology Company Limited](https://appshunter.io/developer/1626620843) | [MD Studio](https://appshunter.io/developer/1438854445) |

## What reviewers say

### 妙笔AI

[App page](https://appshunter.io/ios/app/ai/id6444692604)

This AI-powered mobile application offers a rich content experience with smart recommendations and collection features. Engage in conversations with AI characters, ask questions via voice for instant text and image responses, and track your activity in a personalized user center.

**Highlights:** AI-powered content recommendations, Voice-to-text AI queries, AI-generated text and images, Interactive AI characters, Content browsing and collection, User activity tracking

**Features:** macOS Compatibility

**In-app purchases:** none


### MD Calculator

[App page](https://appshunter.io/ios/app/md-calculator/id6463897900)

Perform calculations directly from your Home Screen using interactive widgets. Customize your experience with a variety of themes, including nostalgic skeuomorphic designs.

**Highlights:** Home Screen Calculator Widget, iOS 17 Interactive Widget Technology, Customizable Themes, Skeuomorphic Themes, On-the-go Computations

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MD Calculator Premium | $0.99 | one-time |


## Frequently asked questions

### Is 妙笔AI free?

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

### Is MD Calculator free?

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

### Which has better reviews, 妙笔AI or MD Calculator?

MD Calculator is rated higher. 妙笔AI averages 1.0 out of 5 from 4 ratings, while MD Calculator averages 4.5 from 79 ratings.

### Do 妙笔AI or MD Calculator have ads?

Neither 妙笔AI nor MD Calculator shows ads.

### Which is updated more often, 妙笔AI or MD Calculator?

妙笔AI ships an update every 3 weeks, and MD Calculator fortnightly. Most recently, 妙笔AI was updated on October 7, 2026 and MD Calculator on October 22, 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.*