# PDF One vs MellowTask

The clearest difference is review sentiment: MellowTask at 100% against PDF One's 0%. MellowTask also leads on update cadence (every 8 days vs every 3 months). PDF One's advantage is iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. PDF One sells 1 one-off in-app purchase and MellowTask sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

PDF One ships an update every 3 months, MellowTask every 8 days. The most recent releases landed on September 14, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | PDF One | MellowTask |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/mellowtask/id6792491389/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 8 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 74 MB | 10 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Y Mobile Solution Co. , Ltd.](https://appshunter.io/developer/1623748683) | [ChanGyu Kang](https://appshunter.io/developer/1869205578) |

## What reviewers say

### PDF One

[App page](https://appshunter.io/ios/app/pdf-one-pdfs-with-ease/id6503068966)

Manage and edit PDF documents with ease. This app offers a powerful viewer, editor, and reader to merge, rotate, delete, and split PDFs. Convert PDFs to images and organize your files efficiently.

**Highlights:** PDF viewing and editing, Merge multiple PDFs, Rotate and delete pages, Split PDFs, Convert PDF to image, E-book reader functionality

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad Removal (Lifetime Free) | $3.99 | one-time |


### MellowTask

[App page](https://appshunter.io/ios/app/mellowtask/id6792491389)

Organize your work using the Eisenhower Matrix to prioritize tasks by importance and urgency. Manage your to-do list with daily views, reminders, and detailed subtask management. Track your progress with statistics and sync with Apple Reminders.

**Highlights:** Eisenhower Matrix organization, Today view for immediate tasks, Detailed task management with subtasks, Progress statistics and trends, Home screen widgets, iCloud Sync and Apple Reminders integration

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MellowTask Pro | $5.99 | one-time |


## Frequently asked questions

### Is PDF One free?

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

### Is MellowTask free?

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

### Do PDF One or MellowTask have ads?

Both PDF One and MellowTask show ads.

### Which is updated more often, PDF One or MellowTask?

PDF One ships an update every 3 months, and MellowTask every 8 days. Most recently, PDF One was updated on September 14, 2026 and MellowTask on September 25, 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.*