# MD Calculator vs Top Box

The clearest difference is rating: Top Box at 4.8 against MD Calculator's 4.5. Top Box also leads on update cadence (every 6 days vs fortnightly). MD Calculator's advantage is device support (3 vs 1). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. MD Calculator sells 1 one-off in-app purchase and Top Box sells 2 in-app purchases, starting at $27.49 per year. Whichever you choose, the download price is not the number that matters.

Top Box holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 78 and 51 respectively. Written reviews point the same way: 60% of MD Calculator's written reviews are positive against 65% of Top Box's.

MD Calculator ships an update fortnightly, Top Box every 6 days. The most recent releases landed on October 12, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | MD Calculator | Top Box |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (78 ratings)](https://appshunter.io/ios/app/md-calculator/id6463897900/reviews) | **[4.8 (51 ratings)](https://appshunter.io/ios/app/top-box-app-locker/id6468898401/reviews)** |
| Number of ratings | **78** | 51 |
| Positive reviews | 59.6% of reviews | **65.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 6 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 32 MB | 8 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad, Vision Pro** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [MD Studio](https://appshunter.io/developer/1438854445) | [Chengdu Tiange Technology Co., Ltd](https://appshunter.io/developer/1678042007) |

## What reviewers say

### 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 |


### Top Box

[App page](https://appshunter.io/ios/app/top-box-app-locker/id6468898401)

Secure your phone and personal information with this app locker. It allows you to restrict access to any application, preventing unauthorized viewing and accidental deletion of important data. Enjoy peace of mind with customizable password protection and comprehensive privacy safeguards.

**Highlights:** App restriction and locking, Anti-deletion feature for apps, Password protection, Customizable password options, Integrates with Screen Time permission

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vip包年 | $27.49 | per year |
| 永久Vip | $27.49 | one-time |


## Frequently asked questions

### Is MD Calculator free?

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

### Is Top Box free?

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

### Which has better reviews, MD Calculator or Top Box?

Top Box is rated higher. MD Calculator averages 4.5 out of 5 from 78 ratings, while Top Box averages 4.8 from 51 ratings.

### Do MD Calculator or Top Box have ads?

Neither MD Calculator nor Top Box shows ads.

### Which is updated more often, MD Calculator or Top Box?

MD Calculator ships an update fortnightly, and Top Box every 6 days. Most recently, MD Calculator was updated on October 12, 2026 and Top Box on October 10, 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.*