# MarkViz vs Trial Clock

The clearest difference is in-app purchases: Trial Clock at none against MarkViz's 1. Trial Clock also leads on iOS requirement (17.0 vs 26). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. MarkViz sells 1 one-off in-app purchase. Trial Clock asks for nothing beyond the download.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | MarkViz | Trial Clock |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | Free with in-app purchases | — |
| Size | 14 MB | 4 MB |
| Requires iOS | 26 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [豪华 潘](https://appshunter.io/developer/1848246290) | [BRADFORD MICHAEL LINDLEY](https://appshunter.io/developer/6802406026) |

## What reviewers say

### MarkViz

[App page](https://appshunter.io/ios/app/markviz-markdown-to-image-pdf/id6755598278)

This app converts Markdown text into visual formats like flowcharts, mind maps, and PDFs. It offers live preview, offline diagram rendering, and multiple export options for easy sharing and organization.

**Highlights:** Markdown editing with live preview, Offline Mermaid diagram rendering, Zoomable mind maps from Markdown, Import Markdown and HTML, Export as PDF or image, Document organization and search, Multiple themes

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MarkViz Pro Lifetime | $0.99 | one-time |


### Trial Clock

[App page](https://appshunter.io/ios/app/trial-clock/id6805662698)

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

**In-app purchases:** none


## Frequently asked questions

### Is MarkViz free?

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

### Is Trial Clock free?

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

### Do MarkViz or Trial Clock have ads?

Neither MarkViz nor Trial Clock shows ads.

### Which is updated more often, MarkViz or Trial Clock?

MarkViz ships an update weekly, and Trial Clock weekly. Most recently, MarkViz was updated on October 30, 2026 and Trial Clock on October 31, 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.*