# DoSimple! vs Whale Mark

The clearest difference is in-app purchases: DoSimple! at none against Whale Mark's 4. DoSimple! also leads on update cadence (every 8 days vs every 4 months) and iOS requirement (15.6 vs 17.0). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Whale Mark sells 3 in-app purchases, starting at $0.99 per month. DoSimple! asks for nothing beyond the download.

DoSimple! ships an update every 8 days, Whale Mark every 4 months. The most recent releases landed on October 3, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | DoSimple! | Whale Mark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/dosimple/id1567701359/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 4 months |
| Monetization | **Free** | Freemium |
| Size | 2 MB | 2 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yu Qi](https://appshunter.io/developer/1553552762) | [柱 杨](https://appshunter.io/developer/1680327782) |

## What reviewers say

### DoSimple!

[App page](https://appshunter.io/ios/app/dosimple/id1567701359)

Manage your daily tasks with this lightweight to-do app. It features an intuitive interface for viewing tasks by date, setting priorities, and receiving reminders to ensure you never miss important items.

**Highlights:** Intuitive interface, View ToDos by date, Set priorities, Set reminders, Lightweight design

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is DoSimple! free?

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

### Is Whale Mark free?

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

### Do DoSimple! or Whale Mark have ads?

Neither DoSimple! nor Whale Mark shows ads.

### Which is updated more often, DoSimple! or Whale Mark?

DoSimple! ships an update every 8 days, and Whale Mark every 4 months. Most recently, DoSimple! was updated on October 3, 2026 and Whale Mark on October 11, 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.*