# One Tasks vs MarkSS

The clearest difference is iOS requirement: One Tasks at 15.0 against MarkSS's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on November 13, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | One Tasks | MarkSS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (280 ratings)](https://appshunter.io/ios/app/one-tasks/id1455000420/reviews)** | — |
| Number of ratings | **280** | — |
| Positive reviews | 90.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free | — |
| Size | 61 MB | 110 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, Mac |
| Age rating | 12+ | 4+ |
| Developer | [Code Spark](https://appshunter.io/developer/1238379384) | [Yoshiyuki Yamashita](https://appshunter.io/developer/6816470898) |

## What reviewers say

### One Tasks

[App page](https://appshunter.io/ios/app/one-tasks/id1455000420)

Manage your to-do lists and tasks with a trusted application. Features include subtasks, due dates, reminders, and widgets. It syncs with popular services like Google Tasks and Outlook, and supports CalDAV for data ownership.

**Highlights:** Subtask management, Due dates and reminders, Widgets for quick access, Sync with Google Tasks, Outlook, Office 365, iCloud Reminders, CalDAV provider integration, Cross-device support

**Features:** Vision Pro support

**In-app purchases:** none


### MarkSS

[App page](https://appshunter.io/ios/app/markss/id6816470896)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is One Tasks free?

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

### Is MarkSS free?

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

### Do One Tasks or MarkSS have ads?

Neither One Tasks nor MarkSS shows ads.

### Which is updated more often, One Tasks or MarkSS?

One Tasks ships an update monthly, and MarkSS monthly. Most recently, One Tasks was updated on November 13, 2026 and MarkSS on November 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.*