Ghost Detector vs Math Slowly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Simulated RADAR for energy fluctuations
- EMF detector for electron vibrations
- Infrasound & EVP sound analysis
- Ion detector for electric field charges
- Entertainment-focused paranormal simulation
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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.
Math Slowly
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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
Verdict
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
Both are free to download. Ghost Detector sells 1 one-off in-app purchase. Math Slowly asks for nothing beyond the download.
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.
| Parameter | Ghost Detector | Math Slowly |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (161 ratings) — better | — |
| Positive reviews | 61.1% of reviews | — |
| Number of ratings | 161 — better | — |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 9 MB | 4 MB |
| Age rating | 12+ | 4+ |
| Developer | Digital Bananas, LLC | 29Apps 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
Ghost Detector
- Remove Ads$0.99
Math Slowly
No in-app purchases
Questions
Is Ghost Detector free?
Is Math Slowly free?
Do Ghost Detector or Math Slowly have ads?
Which is updated more often, Ghost Detector or Math Slowly?
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