# Kalc vs ZZZ MDEditor

The clearest difference is in-app purchases: Kalc at none against ZZZ MDEditor's 1. Kalc also leads on ads (none vs shown) and update cadence (every 9 days vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. ZZZ MDEditor sells 1 in-app purchase, starting at $0.99 per month. Kalc asks for nothing beyond the download.

Kalc ships an update every 9 days, ZZZ MDEditor every 3 weeks. The most recent releases landed on October 14, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Kalc | ZZZ MDEditor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/kalc/id610991936/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 96.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Free | — |
| Size | 24 MB | 36 MB |
| Requires iOS | 13.4 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [YUTA OKAJIMA](https://appshunter.io/developer/610991939) | [SMOLT STAGE, K.K.](https://appshunter.io/developer/1708601451) |

## What reviewers say

### Kalc

[App page](https://appshunter.io/ios/app/kalc/id610991936)

This utility app offers a unit converter, calculator, and world clock. Its user-friendly interface is designed for quick access to everyday calculations and conversions.

**Highlights:** Unit converter, Calculator, World clock, Simple UI, Quick results

**Features:** macOS Compatibility

**In-app purchases:** none


### ZZZ MDEditor

[App page](https://appshunter.io/ios/app/zzz-mdeditor/id6794988899)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ZZZ MDEditor Premium | $0.99 | per month |


## Frequently asked questions

### Is Kalc free?

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

### Is ZZZ MDEditor free?

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

### Do Kalc or ZZZ MDEditor have ads?

ZZZ MDEditor shows ads; Kalc does not.

### Which is updated more often, Kalc or ZZZ MDEditor?

Kalc ships an update every 9 days, and ZZZ MDEditor every 3 weeks. Most recently, Kalc was updated on October 14, 2026 and ZZZ MDEditor on October 20, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*