# Crypto Tools (De)Encryption vs Crypto String

The clearest difference is price: Crypto Tools (De)Encryption at Free against Crypto String's $0.99. Crypto String's advantage is in-app purchases (none vs 2) and iOS requirement (18.0 vs 26.0). On update cadence, ads and device support there is nothing between them.

Crypto Tools (De)Encryption is free to download; Crypto String costs $0.99 up front. Crypto Tools (De)Encryption sells 2 in-app purchases, starting at $1.99 per month. Crypto String asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on June 8, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Crypto Tools (De)Encryption | Crypto String |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/crypto-tools-deencryption/id1670173533/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | Freemium | — |
| Size | 18 MB | 0 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [HUBO SOFT](https://appshunter.io/developer/537026470) | [Xu Wang](https://appshunter.io/developer/1216698112) |

## What reviewers say

### Crypto Tools (De)Encryption

[App page](https://appshunter.io/ios/app/crypto-tools-deencryption/id1670173533)

This app offers a comprehensive suite of cryptographic tools for Apple devices, including encryption, decryption, key management, and certificate analysis. It's designed for developers, security professionals, and technical learners to inspect, validate, and manage sensitive data locally with precision.

**Highlights:** Encrypt and decrypt data with AES-256-GCM, Generate, import, inspect, and manage cryptographic keys, Parse and analyze ASN.1 structures and certificates, Analyze and verify Apple Sign-In JWTs, Validate and generate JWS, Work with JWT, JWS, and JWE flows, QR code workflows and PKPass tooling

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly membership | $1.99 | per month |
| Annual membership | $17.99 | per year |


### Crypto String

[App page](https://appshunter.io/ios/app/crypto-string-aes-encrypt/id6754283595)

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

**In-app purchases:** none


## Frequently asked questions

### Is Crypto Tools (De)Encryption free?

Crypto Tools (De)Encryption is free to download, with in-app purchases available.

### Is Crypto String free?

Crypto String costs $0.99, with no in-app purchases.

### Do Crypto Tools (De)Encryption or Crypto String have ads?

Neither Crypto Tools (De)Encryption nor Crypto String shows ads.

### Which is updated more often, Crypto Tools (De)Encryption or Crypto String?

Crypto Tools (De)Encryption ships an update every 4 months, and Crypto String every 4 months. Most recently, Crypto Tools (De)Encryption was updated on June 8, 2026 and Crypto String on September 19, 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.*