BIP39 DECRYPT vs Crypto String
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
BIP39 DECRYPT
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Quickly decrypt and encrypt your BIP39 recovery phrase with BIT39 DECRYPT! BIT39 DECRYPT is an open-sourced and safe decryption tool that DOES NOT collect, record, or transmit any user data or user inputs at any point. You can also decrypt your recovery phrase with the included word list for an ultra-private decryption on your phone anywhere. View the code here: https://github.com/slimeforest/BIP39-DECRYPT/blob/main/DECRYPTo/DECRYPTo/Controllers/DecryptViewController.swift Both Light Mode and Dark Mode are supported. Also works with BIP32 and BIP44.
Crypto String
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Crypto String is the ultimate secure text encryption app using military-grade AES-256-GCM with authentication. Protect your sensitive information with powerful encryption and Base64 encoding โ all 100% offline and private. Core Features โข AES-256-GCM Encryption โ Military-grade algorithm with custom keys for unique results โข Base64 Encode/Decode โ Fast and reliable for data transmission and storage โข File Import โ Directly import text/keys from local files or iCloud Drive โข Smart Key Management โ Import keys + eye-icon toggle to view/hide safely โข History Records โ Auto-save last 10 operations with key hints (only first 4 chars) โข Multilingual Interface โ Automatic language switching โข Dark Mode + iOS Native โ Built with Apple CryptoKit for maximum security Security First โข 100% Local Processing โ Nothing uploaded to cloud โข No data collection, no accounts, no tracking โข Keys never stored in plain text โข One-time purchase, no ads, no subscriptions Perfect for protecting passwords, notes, private messages, or business data. Simple, fast, and truly private. Download Crypto String now and encrypt with confidence!
Screenshots
Verdict
The clearest difference is update cadence: BIP39 DECRYPT at every 6 days against Crypto String's every 4 months. BIP39 DECRYPT also leads on iOS requirement (15.0 vs 18.0). Crypto String's advantage is price ($0.99 vs $1.99). On ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
BIP39 DECRYPT costs $1.99 and Crypto String $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
BIP39 DECRYPT ships an update every 6 days, Crypto String every 4 months. The most recent releases landed on October 3, 2026 and October 6, 2026 respectively.
| Parameter | BIP39 DECRYPT | Crypto String |
|---|---|---|
| Price | $1.99 | $0.99 โ better |
| Update frequency | Every 6 days โ better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.0 โ better | 18.0 |
| Further details โ not scored | ||
| Size | 1 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | John Battle | Xu Wang |
In-app purchases
BIP39 DECRYPT
No in-app purchases
Crypto String
No in-app purchases
Questions
Is BIP39 DECRYPT free?
Is Crypto String free?
Do BIP39 DECRYPT or Crypto String have ads?
Which is updated more often, BIP39 DECRYPT or Crypto String?
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