# Stack vs Idea Notes

The clearest difference is in-app purchases: Idea Notes at none against Stack's 2. Stack's advantage is update cadence (every 8 days vs every 4 months) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Stack sells 2 in-app purchases, starting at $1.49 per month. Idea Notes asks for nothing beyond the download.

Stack ships an update every 8 days, Idea Notes every 4 months. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Stack | Idea Notes |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 4 months |
| Size | 59 MB | 3 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Fadi Zaid](https://appshunter.io/developer/1893682112) | [LEAN ASIA CO., LTD](https://appshunter.io/developer/1815050814) |

## What reviewers say

### 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 | $1.49 | per month |
| Yearly Premium | $14.99 | per year |


### Idea Notes

[App page](https://appshunter.io/ios/app/idea-notes-quick-brain-dump/id6772130739)

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

**In-app purchases:** none


## Frequently asked questions

### Is Stack free?

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

### Is Idea Notes free?

Idea Notes is free to download, with no in-app purchases.

### Do Stack or Idea Notes have ads?

Neither Stack nor Idea Notes shows ads.

### Which is updated more often, Stack or Idea Notes?

Stack ships an update every 8 days, and Idea Notes every 4 months. Most recently, Stack was updated on October 7, 2026 and Idea Notes on October 8, 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.*