# Denso vs Disappearing Notes

The clearest difference is price: Disappearing Notes at Free against Denso's $0.99. Disappearing Notes also leads on update cadence (every 4 months vs every 39 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Disappearing Notes is free to download; Denso costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Denso ships an update every 39 months, Disappearing Notes every 4 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Denso | Disappearing Notes |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 4 months** |
| Monetization | — | Free |
| Size | 0 MB | 0 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Systemiko Inc.](https://appshunter.io/developer/680630947) | [Jordan Holland](https://appshunter.io/developer/1041851744) |

## What reviewers say

### Denso

[App page](https://appshunter.io/ios/app/denso-send-a-memo/id1613361452)

**Features:** macOS Compatibility

**In-app purchases:** none


### Disappearing Notes

[App page](https://appshunter.io/ios/app/disappearing-notes/id6477320057)

This app allows you to create temporary notes that automatically delete after a set time. Choose from various expiry durations or opt for no expiry. Notes can be easily managed and synced across devices.

**Highlights:** Create notes up to 1000 characters, Set custom expiry times, Swipe to delete notes, iCloud sync across devices, Choose from multiple expiry durations

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

**In-app purchases:** none


## Frequently asked questions

### Is Denso free?

Denso costs $0.99, with no in-app purchases.

### Is Disappearing Notes free?

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

### Do Denso or Disappearing Notes have ads?

Neither Denso nor Disappearing Notes shows ads.

### Which is updated more often, Denso or Disappearing Notes?

Denso ships an update every 39 months, and Disappearing Notes every 4 months. Most recently, Denso was updated on November 3, 2026 and Disappearing Notes on November 4, 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.*