# My Diary Pro vs Stack

The clearest difference is in-app purchases: My Diary Pro at none against Stack's 2. Stack's advantage is device support (3 vs 1) and iOS requirement (16.4 vs 18.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Stack sells 2 in-app purchases, starting at $1.99 per month. My Diary Pro asks for nothing beyond the download.

My Diary Pro ships an update fortnightly, Stack every 8 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | My Diary Pro | Stack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 8 days** |
| Size | 10 MB | 61 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [omar alotaibi](https://appshunter.io/developer/1860416659) | [Fadi Zaid](https://appshunter.io/developer/1893682112) |

## What reviewers say

### My Diary Pro

[App page](https://appshunter.io/ios/app/my-diary-pro/id6756390123)

**In-app purchases:** none


### Stack

[App page](https://appshunter.io/ios/app/stack-tasks-and-reminders/id6762291589)

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $1.99 | per month |
| Yearly Premium | $19.99 | per year |


## Frequently asked questions

### Is My Diary Pro free?

My Diary Pro is free to download, with no in-app purchases.

### Is Stack free?

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

### Do My Diary Pro or Stack have ads?

Neither My Diary Pro nor Stack shows ads.

### Which is updated more often, My Diary Pro or Stack?

My Diary Pro ships an update fortnightly, and Stack every 8 days. Most recently, My Diary Pro was updated on October 30, 2026 and Stack on October 31, 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.*