# OneCryption vs CypherAir

The clearest difference is in-app purchases: CypherAir at none against OneCryption's 5. CypherAir also leads on update cadence (every 2 days vs every 3 months) and device support (4 vs 1). OneCryption's advantage is iOS requirement (17.6 vs 26.5). On price and ads there is nothing between them.

Both are free to download. OneCryption sells 5 in-app purchases, starting at $49.99 per month. CypherAir asks for nothing beyond the download.

OneCryption ships an update every 3 months, CypherAir every 2 days. The most recent releases landed on June 5, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | OneCryption | CypherAir |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/onecryption/id1399893476/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 days** |
| Monetization | Freemium | — |
| Size | 11 MB | 79 MB |
| Requires iOS | **17.6** | 26.5 |
| Devices | iPhone | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Christian Hell](https://appshunter.io/developer/329510560) | [康 陈](https://appshunter.io/developer/1862348574) |

## What reviewers say

### OneCryption

[App page](https://appshunter.io/ios/app/onecryption/id1399893476)

This app offers true offline encryption for messages, photos, videos, and files. It emphasizes absolute secrecy through direct key exchange and no server reliance, ensuring quantum-proof security.

**Highlights:** Offline encryption for messages and files, Direct key exchange, No server reliance, Quantum-proof security, File and media encryption, Simple encryption/decryption

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium features monthly | $49.99 | per month |
| Premium features yearly | $500.00 | per year |
| Key of size 100MB | $0.99 | one-time |
| Key of size 500MB | $0.99 | one-time |
| Premium Lifetime | $399.99 | one-time |


### CypherAir

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

**In-app purchases:** none


## Frequently asked questions

### Is OneCryption free?

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

### Is CypherAir free?

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

### Do OneCryption or CypherAir have ads?

Neither OneCryption nor CypherAir shows ads.

### Which is updated more often, OneCryption or CypherAir?

OneCryption ships an update every 3 months, and CypherAir every 2 days. Most recently, OneCryption was updated on June 5, 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.*