SimpleSped vs CryptKB
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SimpleSped
This app provides a clear and straightforward speedometer for your Apple Watch. It focuses solely on displaying your current speed in real-time, making it ideal for activities like cycling or driving without unnecessary complexity. The interface is designed for simplicity and efficiency, ensuring you can easily monitor your pace.
- Ultra-simple interface
- Background speed tracking
- Instant real-time speed readings
- Battery efficient design
- Works on Apple Watch, iPhone, and iPod
Read full descriptionHide full description
Thinking of speed tracking not as a sport, but still in need of a reliable speedometer? Here's SimpleSpeed – the most straightforward speed tracking app for Apple Watch. No complicated menus, no overwhelming features – just your current speed displayed clearly on your wrist. Perfect for cycling, walking, driving, or any activity where you want to monitor your pace without the complexity of fitness apps. A simple speed tracking App. Nothing else. Simple, easy to use, no distractions. Doesn't saves any data, and works even if you lower your wrist. Don't want to measure the speed anymore? Just close the app, and all tracking will be disabled. Key Features: Ultra-simple interface – Just your speed, nothing else Background tracking – Continues monitoring even when the screen is off Instant readings – Real-time speed updates in km/h Battery efficient – Optimized for all-day use SimpleSped: Because sometimes you just need to know how fast you're going.
CryptKB
Encrypt messages and files locally on your device before sending. Use a custom keyboard or Messages extension to easily encrypt and decrypt content with a password. Your data remains private with no account creation or backend servers.
- Local encryption/decryption
- Custom keyboard integration
- Messages extension
- AES-256-GCM encryption
- ASCII-safe payload
- Password saving with Face ID/passcode
Read full descriptionHide full description
CryptKB helps you encrypt message text before it leaves your iPhone or iPad. Use the custom keyboard to write a message, choose a password, and insert an encrypted payload into Messages or another text field. Or open the Messages extension to stage a CryptKB bubble inside a Messages draft. The other person can open the same payload in CryptKB and decrypt it locally with the matching password. Why people use CryptKB: - Local encrypt and decrypt on device - Custom keyboard for ordinary text fields - Messages extension for composing and opening CryptKB bubbles - AES-256-GCM encryption with PBKDF2-HMAC-SHA256 key derivation - ASCII-safe payload format for copy, paste, and sharing - Optional saved conversation passwords protected by Face ID or device passcode - No account creation, no backend relay, no analytics SDKs, and no ad tracking in the app - Built-in playground, settings, privacy notes, and diagnostics How it works: 1. Switch to CryptKB Keyboard. 2. Type your message. 3. Enter a password. 4. Tap Encrypt & Insert. 5. Review the encrypted text and tap Send yourself. To decrypt, paste or open a CryptKB payload, enter the matching password, and read the plaintext locally. CryptKB intentionally reveals decrypted text in a local panel instead of writing it back into the conversation automatically. Important platform notes: - Apple does not allow third-party keyboards to tap the host app's Send button, so sending is always manual. - Password recovery is not possible by design. - CryptKB protects message content inside its encrypted payload, not message metadata like recipients, timestamps, screenshots, or notification previews.
Screenshots
Verdict
The clearest difference is iOS requirement: SimpleSped at 15.6 against CryptKB's 17.0. On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | SimpleSped | CryptKB |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 10 days | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 1 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Christopher Fuchs | Seth Farrington18896201822 |
Customer experience
SimpleSped
CryptKB
In-app purchases
SimpleSped
No in-app purchases
CryptKB
No in-app purchases









