Comparison

Crypto String vs PeekMD

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

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

About

PeekMD

Features
Read full description

Open Markdown and HTML content instantly. PeekMD is a lightweight Markdown and HTML viewer designed for developers, writers, and anyone who needs to quickly read formatted text or preview code. Paste content from your clipboard, open it through the system share sheet, make quick edits, and view the rendered result without creating a project or configuring an editor. FAST MARKDOWN PREVIEW Preview headings, lists, quotes, links, tables, and code blocks in a clean reading interface. HTML VIEWER Render HTML snippets, web content, email templates, and simple page code directly on your iPhone. LIGHTWEIGHT EDITOR Edit Markdown or HTML source and quickly check the rendered result. SHARE EXTENSION Send content to PeekMD from Safari, Files, Messages, Notes, and other apps using the system share sheet. CLIPBOARD IMPORT Quickly detect and import Markdown or HTML stored in your clipboard. PREVIEW HISTORY Keep recently opened content available for later reading and editing. HOME SCREEN WIDGETS Place frequently used Markdown and HTML documents on your Home Screen for quick access. ICLOUD SYNC Sync and back up your history across devices using your personal iCloud account. PRIVATE BY DESIGN PeekMD does not collect your personal data. Your content remains on your device and in your personal iCloud storage. PeekMD is useful for: β€’ Reading Markdown and README files β€’ Previewing HTML code β€’ Reviewing developer documentation β€’ Checking Markdown formatting β€’ Editing small text and code snippets β€’ Opening shared content from other apps β€’ Managing frequently used document snippets

Screenshots

Crypto String3 screens
PeekMD4 screens

Verdict

The call

The clearest difference is price: PeekMD at Free against Crypto String's $0.99. PeekMD also leads on update cadence (every 3 days vs every 4 months). Crypto String's advantage is in-app purchases (none vs 3) and iOS requirement (18.0 vs 26.0). On ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

PeekMD is free to download; Crypto String costs $0.99 up front. PeekMD sells 3 one-off in-app purchases. Crypto String asks for nothing beyond the download.

UpkeepUpdate frequency

Crypto String ships an update every 4 months, PeekMD every 3 days. The most recent releases landed on October 25, 2026 and October 10, 2026 respectively.

Scorecard4 real differences Β· 2 level
Crypto String versus PeekMD: the parameters behind the verdict, then further details
ParameterCrypto StringPeekMD
Price$0.99Free β€” better
Update frequencyEvery 4 monthsEvery 3 days β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad β€” betteriPhone
Requires iOS18.0 β€” better26.0
Further details β€” not scored
Size0 MB3 MB
Age rating4+4+
DeveloperXu Wang金苹 卒

In-app purchases

None

Crypto String

No in-app purchases

3 purchases

PeekMD

One-time3
  • 10欑转捒欑数$0.99
  • PeekMD PRO$1.99
  • 50欑转捒欑数$2.99

Questions

Is Crypto String free?
Crypto String costs $0.99, with no in-app purchases.
Is PeekMD free?
PeekMD is free to download, with in-app purchases available.
Do Crypto String or PeekMD have ads?
Neither Crypto String nor PeekMD shows ads.
Which is updated more often, Crypto String or PeekMD?
Crypto String ships an update every 4 months, and PeekMD every 3 days. Most recently, Crypto String was updated on October 25, 2026 and PeekMD on October 10, 2026.

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