Comparison

Ghost Detector vs Math Slowly

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

Head to head
About

Ghost Detector

This app simulates paranormal detection using four simulated technologies: RADAR, EMF, Infrasound & EVP, and Ion detection. It aims to identify irregular energy fluctuations and unusual sounds in the environment for entertainment purposes.

Highlights
  • Simulated RADAR for energy fluctuations
  • EMF detector for electron vibrations
  • Infrasound & EVP sound analysis
  • Ion detector for electric field charges
  • Entertainment-focused paranormal simulation
Features
Read full description

This app mimics the four most important technologies to detect paranormal activity. RADAR: A radar works by transmitting a signal through electromagnetic waves called radio waves. These waves bounce off certain types of distorted, unstable and abnormal signals. In other words, the radar will detect any irregular energy or fluctuations in the environment. EMF: An EMF detector finds electron vibrations in a given area. This is similar to a radio antenna. INFRASOUND & EVP: InfraSound is sound that is lower in frequency than 20 Hz, which is the normal limit of human hearing. Electronic voice phenomena (EVP) are sounds usually found in background noise from stray radio transmissions which sounds like static, but it can also pick up odd sounds. IONS: An Ion detector can detect positive and negative ions within an electric field. An ion is a positive charge. When there is high amounts of positive electromagnetic discharges it is thought to be due to paranormal activities. Disclaimer: This app is made for fun and entertainment purposes only.

About

Math Slowly

Features
Read full description

Simple math problems where you enter the correct answer for each of a set of 10 problems. No time limit, you work at your own speed. Several answer entry modes are supported including typing with the keyboard, using scroll wheel style entry, and multiple choice. Try to use your brain (like it is an app), but a calculator is built-in if you get stuck or just want some help. Math operations supported are add, subtract, multiply, divide, square, square root, cube, and cube root. Each math operation can be individually included or excluded in the Settings. Also in the Settings you can select whether you prefer to work with 1, 2, 3, or 4 digit math. This app is minimalist by design with no ads, no bells and whistles, and no fancy graphics to distract you, just math. Entertainment value only, fun challenging brain math problems. © 2025–2026 29Apps LLC, All rights reserved.

Screenshots

Ghost Detector4 screens
Math Slowly4 screens

Verdict

The call

The clearest difference is in-app purchases: Math Slowly at none against Ghost Detector's 1. Math Slowly also leads on ads (none vs shown). Ghost Detector's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence and device support 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. Ghost Detector sells 1 one-off in-app purchase. Math Slowly asks for nothing beyond the download.

UpkeepUpdate frequency

Ghost Detector ships an update every 3 months, Math Slowly every 2 months. The most recent releases landed on October 23, 2026 and October 9, 2026 respectively.

Scorecard3 real differences · 7 level
Ghost Detector versus Math Slowly: the parameters behind the verdict, then further details
ParameterGhost DetectorMath Slowly
PriceFreeFree
Rating4.3 (161 ratings) — better—
Positive reviews61.1% of reviews—
Number of ratings161 — better—
Update frequencyEvery 3 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size9 MB4 MB
Age rating12+4+
DeveloperDigital Bananas, LLC29Apps LLC

Bugs and requests

Ghost Detector

Reported bugs

3 issues
  • Dots on the radar do not always accurately represent location
  • Voices and sounds sometimes cut out or are difficult to hear
  • App crashes or freezes unexpectedly

Requested features

3 requests
  • More customization options
  • Improved voice recognition and clarity
  • Ability to save and review past paranormal encounters

Math Slowly

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Ghost Detector

One-time1
  • Remove Ads$0.99
None

Math Slowly

No in-app purchases

Questions

Is Ghost Detector free?
Ghost Detector is free to download, with in-app purchases available.
Is Math Slowly free?
Math Slowly is free to download, with no in-app purchases.
Do Ghost Detector or Math Slowly have ads?
Ghost Detector shows ads; Math Slowly does not.
Which is updated more often, Ghost Detector or Math Slowly?
Ghost Detector ships an update every 3 months, and Math Slowly every 2 months. Most recently, Ghost Detector was updated on October 23, 2026 and Math Slowly on October 9, 2026.

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