# One Markdown vs HaruSync

The clearest difference is update cadence: HaruSync at weekly against One Markdown's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. One Markdown sells 3 in-app purchases, starting at $3.99 per year and HaruSync sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

One Markdown ships an update monthly, HaruSync weekly. Both last shipped on October 21, 2026.

## The numbers

| Metric | One Markdown | HaruSync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (149 ratings)](https://appshunter.io/ios/app/one-markdown/id1507139439/reviews)** | — |
| Number of ratings | **149** | — |
| Positive reviews | 81.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 50 MB | 154 MB |
| Requires iOS | **14.5** | 15.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [禄海 区](https://appshunter.io/developer/954188947) | [Pearrolls](https://appshunter.io/developer/1885791209) |

## What reviewers say

### One Markdown

[App page](https://appshunter.io/ios/app/one-markdown/id1507139439)

A fast and simple editor for plain text, Markdown, and Textbundle formats. It offers full Markdown display, image previews, math formula rendering, and extensive customization options for themes and fonts. Includes tools for syntax input, table generation, and document outlining.

**Highlights:** Supports CommonMark and GitHub Flavored Markdown, Full Markdown document display, Image and math formula previews, Customizable themes and fonts, Markdown syntax input menu and keyboard, Outline and word count view, Editor & Preview mode

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Markdown Yearly Subscribe | $3.99 | per year |
| One Markdown for Mac | $9.99 | one-time |
| One Markdown for  iPhone/iPad | $9.99 | one-time |


### HaruSync

[App page](https://appshunter.io/ios/app/harusync-daily-planner/id6760698017)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Monthly | $2.99 | per month |
| Basic Yearly | $29.99 | per year |
| Purchase credit | $0.99 | one-time |


## Frequently asked questions

### Is One Markdown free?

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

### Is HaruSync free?

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

### Do One Markdown or HaruSync have ads?

Neither One Markdown nor HaruSync shows ads.

### Which is updated more often, One Markdown or HaruSync?

One Markdown ships an update monthly, and HaruSync weekly. Most recently, One Markdown was updated on October 21, 2026 and HaruSync on October 21, 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.*