# Whale Mark vs OneThing

The clearest difference is price: Whale Mark at Free against OneThing's $0.99. OneThing's advantage is update cadence (fortnightly vs every 4 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Whale Mark is free to download; OneThing costs $0.99 up front. Whale Mark sells 3 in-app purchases, starting at $0.99 per month and OneThing sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Whale Mark ships an update every 4 months, OneThing fortnightly. The most recent releases landed on September 25, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Whale Mark | OneThing |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/onething-focus-one/id6670703485/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | **Freemium** | Paid |
| Size | 2 MB | 2 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [柱 杨](https://appshunter.io/developer/1680327782) | [定荣 郭](https://appshunter.io/developer/1752171222) |

## What reviewers say

### Whale Mark

[App page](https://appshunter.io/ios/app/whale-mark/id6593689945)

Track your reading progress for physical books with this e-bookmark application. Log your current page, add notes, and manage your library of paperbacks. Stay organized and never lose your place again.

**Highlights:** Track reading progress for paper books, Log current page, Add notes to books, Manage book library, E-bookmark functionality

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Membership | $0.99 | per month |
| Annual Membership | $2.99 | per year |
| Lifetime Membership | $3.99 | one-time |


### OneThing

[App page](https://appshunter.io/ios/app/onething-focus-one/id6670703485)

This app helps you stay focused by displaying your most important task on your home or lock screen. It simplifies your life by bringing order through focusing on one priority at a time.

**Highlights:** Display crucial item on home/lock screen, Stay focused and efficient, Simple input, Visible everywhere, Brings order to life

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| buy the author a cola | $0.99 | one-time |


## Frequently asked questions

### Is Whale Mark free?

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

### Is OneThing free?

OneThing costs $0.99, and also offers in-app purchases.

### Do Whale Mark or OneThing have ads?

Neither Whale Mark nor OneThing shows ads.

### Which is updated more often, Whale Mark or OneThing?

Whale Mark ships an update every 4 months, and OneThing fortnightly. Most recently, Whale Mark was updated on September 25, 2026 and OneThing on September 20, 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.*