Comparison

Krypton vs WaveBlock® EMF Meter

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

Head to head
About

Krypton

Securely encrypt and protect your personal documents and folders with strong encryption. This app acts like a digital vault, keeping your sensitive files safe from unauthorized access on your devices and cloud storage.

Highlights
  • Strong encryption for documents and folders
  • Acts as a secure digital vault
  • Supports various file types (pictures, movies, PDFs, etc.)
  • Cloud synchronization with iCloud Drive and Dropbox
  • Available on iOS and macOS
Features
Read full description

Protecting your personal and confidential information since 2009, Krypton is the first, simplest and most reliable App on the iOS Store to strongly encrypt entire documents and folders. Now also available on the macOS App Store. Your stuff is secure from prying eyes no matter where you are in the world. Metaphorically, Krypton keeps your encrypted items in a special vault, with each item contained in their own deposit box; to gain access to an encrypted item the vault must be open and the passcode key must be used to unlock the deposit box before you can discern the plaintext contents inside. In iOS the vault may be open or closed, while on macOS the vault opens upon Log In. Because the unit of encryption is an entire document or folder, Krypton is not a password manager in the traditional sense, although you can maintain a document of all your passwords that you encrypt between uses. Krypton can encrypt any type of document, including but not limited to: • Pictures and movies from your photo album. • Email messages from your mailbox. • Songs, PDFs, movies, Zip files, word processing documents, text files, images, program source code or any other object that you can download over the network or from your personal web server. • Anything on the iOS pasteboard. • Any document other Apps are willing to Share, such as Pages, Numbers and Keynote. • iCloud Drive and Dropbox files for easy cloud synchronization. Krypton uses strong encryption on each item. This has several ramifications: • If your passcode is strong enough to withstand a brute force attack, no one is going to see your stuff. • If you forget your passcode, no one can recover your stuff for you! But only that one document is lost, not your entire collection of items. • Your stuff is secure even if your iDevice or Mac is stolen, or iCloud Drive or Dropbox account is compromised. Visit http://www.bigcatos.com to learn more.

About

WaveBlock® EMF Meter

This application transforms your phone into an EMF detector, allowing you to measure electromagnetic field levels in real-time. It helps identify potential radiation sources and understand your exposure from electronic devices and power lines.

Highlights
  • Real-time EMF detection
  • Accurate measurement with device sensors
  • Color-coded EMF zone indicators
  • EMF history log
  • Identify EMF hotspots
  • Create safer environments
Features
Read full description

Your phone just became a powerful EMF (Electromagnetic Field) detector. With WaveBlock® EMF Meter, you can quickly and accurately measure EMF levels around you, helping you understand and reduce your exposure to potentially harmful radiation from electronic devices, power lines, and wireless networks. Key Features: Real-Time EMF Detection – Instantly see EMF levels in your environment. Accurate Measurement – Uses your device’s built-in sensors for precise readings. Easy-to-Read Display – Color-coded indicators show safe, moderate, or high EMF zones. EMF History Log – Track and compare readings over time. Why Use WaveBlock®? From Wi-Fi routers and smartphones to household appliances and power cables, EMF is all around us. While invisible to the naked eye, high EMF exposure has raised health concerns for many people. WaveBlock® EMF Meter helps you: - Identify EMF “hotspots” in your home, workplace, or neighborhood. - Make informed decisions about where you spend your time. - Create safer living and working environments for you and your family. Perfect For: - Health-conscious individuals - Parents and families - People working near electronics or power sources - Anyone curious about their EMF exposure WaveBlock® EMF Meter is simple enough for everyday use yet powerful enough for professional monitoring. With real-time detection, historical tracking, and easy visualization, you have everything you need to make EMF safety a part of your daily routine. Disclaimer: WaveBlock® EMF Meter uses your device’s internal sensors to provide approximate EMF readings. It is not a medical device and should not be used as a substitute for professional equipment or advice. Download WaveBlock® EMF Meter today and take control of your environment!

Screenshots

Krypton4 screens
WaveBlock® EMF Meter4 screens

Verdict

The call

The clearest difference is price: WaveBlock® EMF Meter at Free against Krypton's $2.99. WaveBlock® EMF Meter also leads on update cadence (every 2 weeks vs every 10 months). Krypton's advantage is device support (4 vs 2). On rating, ratings volume, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

WaveBlock® EMF Meter is free to download; Krypton costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Krypton against 5.0 for WaveBlock® EMF Meter. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

Krypton ships an update every 10 months, WaveBlock® EMF Meter every 2 weeks. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

Scorecard4 real differences · 5 level
Krypton versus WaveBlock® EMF Meter: the parameters behind the verdict, then further details
ParameterKryptonWaveBlock® EMF Meter
Price$2.99Free — better
Rating5.0 (2 ratings)5.0 (1 ratings)
Number of ratings2 — better1
Update frequencyEvery 10 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPod
Requires iOS14.0 — better15.1
Further details — not scored
Size110 MB23 MB
Age rating4+4+
DeveloperSteve LidieWaveBlock LLC

Customer experience

Krypton

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

WaveBlock® EMF Meter

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Krypton

No in-app purchases

None

WaveBlock® EMF Meter

No in-app purchases

Questions

Is Krypton free?
Krypton costs $2.99, with no in-app purchases.
Is WaveBlock® EMF Meter free?
WaveBlock® EMF Meter is free to download, with no in-app purchases.
Which has better reviews, Krypton or WaveBlock® EMF Meter?
Krypton and WaveBlock® EMF Meter are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do Krypton or WaveBlock® EMF Meter have ads?
Neither Krypton nor WaveBlock® EMF Meter shows ads.
Which is updated more often, Krypton or WaveBlock® EMF Meter?
Krypton ships an update every 10 months, and WaveBlock® EMF Meter every 2 weeks. Most recently, Krypton was updated on October 9, 2026 and WaveBlock® EMF Meter on October 7, 2026.

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