Comparison

CATS Input Method Pro vs Emf Detector Radiation Reader

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

Head to head
About

CATS Input Method Pro

Features
Read full description

Writing Chinese is a breeze if you use the Chinese Alphabet Teaching System. You can also input the same way as you write Chinese. It is the fastest way of inputting Chinese, and even better, by using it, you also learn how to write Chinese characters better. It is the ideal way of implementing the EasyChinese method of learning Chinese. CATS Input Method Pro is a system-wide iOS keyboard: enable it once in Settings → General → Keyboard → Keyboards, then write Chinese by strokes in any app. Version 2.0 is an all-new keyboard, rebuilt with a native iOS look in light and dark mode, with both the learning and standard key layouts, word association, and the professional vocabulary. Your settings carry over from earlier versions.

About

Emf Detector Radiation Reader

Detect and track magnetic fields and potential EMF sources around you. Receive warnings for high readings and access guidelines for safe exposure levels. Monitor your environment and protect your health.

Highlights
  • Track magnetic fields and high readings
  • Detects ferromagnetic metals
  • Electrosmog (EMP) detector
  • Identifies home appliance EMF sources
  • Radio-Frequency Guidelines table
  • Warning beep for emissions
  • Stores readings with date stamps
Features
Read full description

Track magnetic fields near you. A warning beep will be activated to warn you. The app detects ferromagnetic metals using the iPhone's built-in compass feature. Also works as Electrosmog (EMP) detector. Detect many kinds of home appliances that create radio-frequency EMF. For example:plugs,cell phones,routers, baby monitors, doorbells, intercom systems,night alarm clocks, electronic appliances , electrical wire, antennas. You can check the limit allowed in the "Radio-Frequency Guidelines - for continuous and prolonged exposure" in the instructions button of this app. The higher measures of magnetic fields are stored. Not only does it help you identify potential sources of harmful EMF, but it also provides guidelines on the allowed limit for continuous and prolonged exposure, helping you make informed decisions about your environment. Plus, it stores the higher measures of magnetic fields with a date stamp for each event, allowing you to monitor your exposure over time. Magnetic fields are measured in nT (nanoTesla) and/or milligauss (mG). Customize your screen colors, calculate the magnetic force in nano tesla (nT), and store your records for future reference. Don't leave your health to chance. Take charge of your surroundings and shield yourself and your loved ones from harmful EMF radiation. Take control of your environment and protect yourself and your loved ones from harmful EMF radiation. Health is our most important asset. +++ FEATURES: -Track high magnetic fields and when has it been measured. -Table guide "Radio-Frequency Guidelines - for continuous and prolonged exposure". -Warning beep near focus emissions. -Magnetic force is calculated in nanoteslas ( nT ) -Record your readings with a date stamp of each event. -Store your records. -Change colors of your screen. If you have any issues to report or suggestions to make, please email the device you’re using, iOS version, and a detailed description of the problem to martinbellostudios@gmail.com Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

CATS Input Method Pro4 screens
Emf Detector Radiation Reader3 screens

Verdict

The call

The clearest difference is in-app purchases: CATS Input Method Pro at none against Emf Detector Radiation Reader's 5. CATS Input Method Pro also leads on ads (none vs shown). Emf Detector Radiation Reader's advantage is update cadence (every 3 weeks vs every 24 months) and device support (4 vs 2). On price 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

Both are free to download. Emf Detector Radiation Reader sells 5 in-app purchases, starting at $4.99 per 7 days. CATS Input Method Pro asks for nothing beyond the download.

UpkeepUpdate frequency

CATS Input Method Pro ships an update every 24 months, Emf Detector Radiation Reader every 3 weeks. The most recent releases landed on October 13, 2026 and October 27, 2026 respectively.

Scorecard5 real differences · 5 level
CATS Input Method Pro versus Emf Detector Radiation Reader: the parameters behind the verdict, then further details
ParameterCATS Input Method ProEmf Detector Radiation Reader
PriceFreeFree
Rating—4.6 (1.3K ratings) — better
Positive reviews—86.7% of reviews
Number of ratings—1.3K — better
Update frequencyEvery 24 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod, Apple Watch — better
Requires iOS17.015.6 — better
Further details — not scored
Size7 MB16 MB
Age rating4+4+
DeveloperYIU LEUNG RANDY CHANBello Studios LLC

Bugs and requests

CATS Input Method Pro

Not enough reviews yet to summarise bugs or requests.

Emf Detector Radiation Reader

Reported bugs

2 issues
  • Readout digits overlapping on screen
  • Inconsistent behavior of sound indicator

Requested features

4 requests
  • Ability to compare readings over time
  • Option to export/share recorded data
  • More detailed information on safe/unsafe EMF levels
  • Integration with other EMF monitoring devices

In-app purchases

None

CATS Input Method Pro

No in-app purchases

5 purchases

Emf Detector Radiation Reader

Subscriptions2
  • Weekly Premium$4.997 Days
  • 1 Year Premium$12.991 Year
One-time3
  • Enjoy All The Features$0.99
  • Premium Pack - All Features$4.99
  • Lifetime Access$14.99

Questions

Is CATS Input Method Pro free?
CATS Input Method Pro is free to download, with no in-app purchases.
Is Emf Detector Radiation Reader free?
Emf Detector Radiation Reader is free to download, with in-app purchases available.
Do CATS Input Method Pro or Emf Detector Radiation Reader have ads?
Emf Detector Radiation Reader shows ads; CATS Input Method Pro does not.
Which is updated more often, CATS Input Method Pro or Emf Detector Radiation Reader?
CATS Input Method Pro ships an update every 24 months, and Emf Detector Radiation Reader every 3 weeks. Most recently, CATS Input Method Pro was updated on October 13, 2026 and Emf Detector Radiation Reader on October 27, 2026.

Other comparisons