Comparison

BIP39 DECRYPT vs Crypto String

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

BIP39 DECRYPT

Features
Read full description

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.

About

Crypto String

Features
Read full description

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 โ€ข AES-256-GCM Encryption โ€“ Military-grade algorithm with custom keys for unique results โ€ข Base64 Encode/Decode โ€“ Fast and reliable for data transmission and storage โ€ข File Import โ€“ Directly import text/keys from local files or iCloud Drive โ€ข Smart Key Management โ€“ Import keys + eye-icon toggle to view/hide safely โ€ข History Records โ€“ Auto-save last 10 operations with key hints (only first 4 chars) โ€ข Multilingual Interface โ€“ Automatic language switching โ€ข Dark Mode + iOS Native โ€“ Built with Apple CryptoKit for maximum security Security First โ€ข 100% Local Processing โ€“ Nothing uploaded to cloud โ€ข No data collection, no accounts, no tracking โ€ข Keys never stored in plain text โ€ข 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

BIP39 DECRYPT4 screens
Crypto String3 screens

Verdict

The call

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences ยท 3 level
BIP39 DECRYPT versus Crypto String: the parameters behind the verdict, then further details
ParameterBIP39 DECRYPTCrypto String
Price$1.99$0.99 โ€” better
Update frequencyEvery 6 days โ€” betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 โ€” better18.0
Further details โ€” not scored
Size1 MB0 MB
Age rating4+4+
DeveloperJohn BattleXu Wang

In-app purchases

None

BIP39 DECRYPT

No in-app purchases

None

Crypto String

No in-app purchases

Questions

Is BIP39 DECRYPT free?
BIP39 DECRYPT costs $1.99, with no in-app purchases.
Is Crypto String free?
Crypto String costs $0.99, with no in-app purchases.
Do BIP39 DECRYPT or Crypto String have ads?
Neither BIP39 DECRYPT nor Crypto String shows ads.
Which is updated more often, BIP39 DECRYPT or Crypto String?
BIP39 DECRYPT ships an update every 6 days, and Crypto String every 4 months. Most recently, BIP39 DECRYPT was updated on October 3, 2026 and Crypto String on October 6, 2026.

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