# Keywave. vs CypherAir

The clearest difference is update cadence: CypherAir at every 2 days against Keywave.'s every 6 months. CypherAir also leads on device support (4 vs 1). Keywave.'s advantage is iOS requirement (17.6 vs 26.5). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Keywave. ships an update every 6 months, CypherAir every 2 days. The most recent releases landed on September 1, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Keywave. | CypherAir |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (4 ratings)](https://appshunter.io/ios/app/keywave/id6758056425/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 11 MB | 79 MB |
| Requires iOS | **17.6** | 26.5 |
| Devices | iPhone | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [William Kelley](https://appshunter.io/developer/1870645864) | [康 陈](https://appshunter.io/developer/1862348574) |

## What reviewers say

### Keywave.

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

Securely encrypt and decrypt messages directly on your device. Manage your PGP keys locally without any server interaction or data tracking. Offers robust key generation and import/export options with a clean interface.

**Highlights:** Encrypt and decrypt messages, Generate RSA keypairs, Manage unlimited keys, Import/export keys, Native SwiftUI interface, 100% local processing

**In-app purchases:** none


### CypherAir

[App page](https://appshunter.io/ios/app/cypherair/id6760628384)

**In-app purchases:** none


## Frequently asked questions

### Is Keywave. free?

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

### Is CypherAir free?

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

### Do Keywave. or CypherAir have ads?

Neither Keywave. nor CypherAir shows ads.

### Which is updated more often, Keywave. or CypherAir?

Keywave. ships an update every 6 months, and CypherAir every 2 days. Most recently, Keywave. was updated on September 1, 2026 and CypherAir on September 15, 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.*