# DaysKeeper vs Simple ToDo Diary

The clearest difference is ads: Simple ToDo Diary at none against DaysKeeper's shown. Simple ToDo Diary also leads on update cadence (daily vs every 4 weeks). DaysKeeper's advantage is iOS requirement (16.0 vs 18.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. DaysKeeper sells 4 in-app purchases, starting at $0.99 per month and Simple ToDo Diary sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

DaysKeeper ships an update every 4 weeks, Simple ToDo Diary daily. Both last shipped on October 25, 2026.

## The numbers

| Metric | DaysKeeper | Simple ToDo Diary |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 weeks | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 4 MB |
| Requires iOS | **16.0** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [G-SOFT](https://appshunter.io/developer/368394644) | [Kazuya Hashimoto](https://appshunter.io/developer/1857972259) |

## What reviewers say

### DaysKeeper

[App page](https://appshunter.io/ios/app/dayskeeper/id6478824910)

Track days past and days remaining until important dates. Add photos, notes, and colors to your events. Receive notifications for upcoming anniversaries and milestones.

**Highlights:** Track days past and remaining, Attach photos and notes to dates, Customizable colors and tags, Calendar and reminder integration, Sortable date list, Customizable notifications, iCloud device sync

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hide ads | $0.99 | per month |
| Notification by number of days | $0.99 | one-time |
| Number of Date-Data | $2.99 | one-time |
| Hide ads (Unlimited) | $5.99 | one-time |


### Simple ToDo Diary

[App page](https://appshunter.io/ios/app/simple-todo-diary/id6756016949)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告を非表示にする | $1.99 | one-time |


## Frequently asked questions

### Is DaysKeeper free?

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

### Is Simple ToDo Diary free?

Simple ToDo Diary is free to download, with in-app purchases available.

### Do DaysKeeper or Simple ToDo Diary have ads?

DaysKeeper shows ads; Simple ToDo Diary does not.

### Which is updated more often, DaysKeeper or Simple ToDo Diary?

DaysKeeper ships an update every 4 weeks, and Simple ToDo Diary daily. Most recently, DaysKeeper was updated on October 25, 2026 and Simple ToDo Diary on October 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.*