# Dynamic Memo vs OpenST

The clearest difference is in-app purchases: Dynamic Memo at none against OpenST's 2. OpenST's advantage is ads (none vs shown) and update cadence (every 3 days vs every 5 weeks). On price and iOS requirement there is nothing between them.

Both are free to download. OpenST sells 2 in-app purchases, starting at $2.99 per month. Dynamic Memo asks for nothing beyond the download.

Dynamic Memo ships an update every 5 weeks, OpenST every 3 days. The most recent releases landed on September 21, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Dynamic Memo | OpenST |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/dynamic-memo/id6747792515/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 3 days** |
| Monetization | Ad-supported | — |
| Size | 5 MB | 29 MB |
| Requires iOS | 18.1 | **17.0** |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [MIZOU, CO., LTD.](https://appshunter.io/developer/1542553141) | [FBeasleySoftware](https://appshunter.io/developer/337083652) |

## What reviewers say

### Dynamic Memo

[App page](https://appshunter.io/ios/app/dynamic-memo/id6747792515)

This app keeps your most crucial notes visible at all times using your iPhone's Dynamic Island. Create, manage, and prioritize memos for persistent display, ensuring important information is always accessible. It offers quick access via widgets and a clean interface for efficient note-taking.

**Highlights:** Pin memos to Dynamic Island, Full memo list management, Memo prioritization, Home screen widget support, Quick memo creation, Clean, modern interface

**Features:** macOS Compatibility

**In-app purchases:** none


### OpenST

[App page](https://appshunter.io/ios/app/openst/id6772773979)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $2.99 | per month |
| Yearly Subscription | $24.99 | per year |


## Frequently asked questions

### Is Dynamic Memo free?

Dynamic Memo is free to download, with no in-app purchases.

### Is OpenST free?

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

### Do Dynamic Memo or OpenST have ads?

Dynamic Memo shows ads; OpenST does not.

### Which is updated more often, Dynamic Memo or OpenST?

Dynamic Memo ships an update every 5 weeks, and OpenST every 3 days. Most recently, Dynamic Memo was updated on September 21, 2026 and OpenST on September 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*