# Supernote vs Secret Diary

The clearest difference is price: Supernote at Free against Secret Diary's $0.99. Supernote also leads on update cadence (weekly vs monthly). Secret Diary's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

Supernote is free to download; Secret Diary costs $0.99 up front. Supernote sells 2 in-app purchases, starting at $4.99 per year. Secret Diary asks for nothing beyond the download.

Supernote ships an update weekly, Secret Diary monthly. The most recent releases landed on September 5, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Supernote | Secret Diary |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Size | 31 MB | 8 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [亮军 涂](https://appshunter.io/developer/1832996559) | [景 刘](https://appshunter.io/developer/1887860900) |

## What reviewers say

### Supernote

[App page](https://appshunter.io/ios/app/supernote-note-and-reminder/id6751161764)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Year VIP | $4.99 | per year |
| Lifetime Membership | $7.99 | one-time |


### Secret Diary

[App page](https://appshunter.io/ios/app/secret-diary-notebook/id6761122036)

**In-app purchases:** none


## Frequently asked questions

### Is Supernote free?

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

### Is Secret Diary free?

Secret Diary costs $0.99, with no in-app purchases.

### Do Supernote or Secret Diary have ads?

Neither Supernote nor Secret Diary shows ads.

### Which is updated more often, Supernote or Secret Diary?

Supernote ships an update weekly, and Secret Diary monthly. Most recently, Supernote was updated on September 5, 2026 and Secret Diary on September 23, 2026.

---

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