# Keywave vs CypherAir

The clearest difference is update cadence: CypherAir at every 2 days against Keywave's every 4 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 4 months, CypherAir every 2 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Keywave | CypherAir |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 13 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-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


### 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 4 months, and CypherAir every 2 days. Most recently, Keywave was updated on November 5, 2026 and CypherAir on October 31, 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.*