# ghostmemo vs Keywave

The clearest difference is in-app purchases: Keywave at none against ghostmemo's 2. ghostmemo's advantage is update cadence (monthly vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

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

ghostmemo ships an update monthly, Keywave every 4 months. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | ghostmemo | Keywave |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/ghostmemo/id6740350700/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 4 months |
| Monetization | Freemium | **Free** |
| Size | 3 MB | 13 MB |
| Requires iOS | **17.2** | 17.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [COLIN DIVELY](https://appshunter.io/developer/1698804269) | [William Kelley](https://appshunter.io/developer/1870645864) |

## What reviewers say

### ghostmemo

[App page](https://appshunter.io/ios/app/ghostmemo/id6740350700)

Securely store private notes, passwords, and logs with end-to-end encryption. This app offers local encryption, Face ID/PIN protection, and an intuitive interface for easy data safeguarding. Keep your personal information private and accessible only to you.

**Highlights:** End-to-end encryption, Local data handling, Face ID/PIN authentication, Password storage, Health log keeping, Text formatting, Beginner encryption guide

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ghostmemo+ | $2.99 | per month |
| ghostmemo+ | $24.99 | per year |


### Keywave

[App page](https://appshunter.io/ios/app/keywave-pgp-encryption/id6758056425)

This app provides robust PGP encryption and decryption capabilities directly on your device. It allows you to generate, manage, import, and export PGP keys locally, ensuring your data remains private and secure without server reliance.

**Highlights:** Encrypt and decrypt messages, Generate PGP keys (2048-4096 bit), Manage unlimited local keys, Import keys from files or clipboard, Export keys in various formats, 100% local processing, Zero data collection

**In-app purchases:** none


## Frequently asked questions

### Is ghostmemo free?

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

### Is Keywave free?

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

### Do ghostmemo or Keywave have ads?

Neither ghostmemo nor Keywave shows ads.

### Which is updated more often, ghostmemo or Keywave?

ghostmemo ships an update monthly, and Keywave every 4 months. Most recently, ghostmemo was updated on October 30, 2026 and Keywave on November 5, 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.*