Comparison

Sound Amp Pro vs GhostScope

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

Head to head
About

Sound Amp Pro

Features
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Description Personal Sound Amplification for Enhanced Listening Transform your iPhone and headphones into a powerful personal sound amplifier. HearingAid Pro delivers real-time audio enhancement with professional-grade processing โ€” right in your pocket. REAL-TIME SOUND AMPLIFICATION - 8-band parametric equalizer for precise frequency control - Independent left/right ear volume and EQ adjustment - Ultra-low latency audio processing - Automatic feedback detection and cancellation - Works with AirPods, AirPods Pro, wired headphones, and more 8 READY-TO-USE PRESETS Balanced, Clear Speech, Noisy Places, Music, TV & Media, Outdoor, Quiet Room, and High-Frequency Boost โ€” plus create and save your own custom presets. EDUCATIONAL HEARING TEST - Pure-tone audiometry with visual audiogram display - Test each ear independently - Headphone calibration for accurate results - Track your hearing profile over time PRESCRIPTION FORMULA REFERENCE Explore NAL-NL2 and DSL v5 prescription formulas applied to your audiogram โ€” for educational and informational purposes. TINNITUS SOUND THERAPY - 8 masking sounds: white noise, pink noise, brown noise, notched noise, ocean waves, rain, stream, and custom tone - Adjustable frequency shaping and volume - Mix with hearing amplification for integrated relief - Tinnitus Retraining Therapy (TRT) guidance LIVE SPEECH TRANSCRIPTION Real-time speech-to-text with multi-language support, voice quality indicators, and continuous recognition โ€” use alongside amplification for maximum accessibility. PRIVACY FIRST All data stays on your device. No accounts, no cloud uploads, no tracking. IMPORTANT: HearingAid Pro is a Personal Sound Amplification Product (PSAP) intended for educational and informational purposes. It is NOT a medical device and does not diagnose, treat, or replace professional hearing care. Consult a licensed audiologist or healthcare provider for hearing loss concerns.

About

GhostScope

Features
Read full description

GhostScope is a ghost-hunting kit for fun. It cannot detect ghosts: it shows what your phone's sensors pick up and adds playful tools. EMF METER: shows your phone's real magnetometer reading in ยตT or mG, with a 5-LED bar, peak and live graph. Magnets and speakers move it. Not a scientific instrument. EVP RECORDER: record with the microphone and play back slowed down. Free: 1 recording a day, plus 1 per rewarded ad. SPIRIT RADAR: a radar animation for atmosphere. Blips are random, a visual effect only. SPIRIT BOX: a radio-sweep game. Words are picked at random from a built-in list; a word drops sooner when your EMF reading jumps. Word history included. Entertainment only: nothing is being detected. SENSORS: live pressure, vibration and sound level from the sensors in your phone. PENDULUM: type a yes/no question; the answer comes from how you tilt the phone. HUNT LOG: saves your EMF sessions (duration, peak, events), the last 100. Free with ads. No ads while a hunt is running. GhostScope Pro (subscription or one-time purchase) adds unlimited EVP recordings, m4a export and sensitivity boost above x1.4, and removes ads. No account. Readings and recordings stay on your device. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://ghapps1.wordpress.com/privacy-policy/

Screenshots

Sound Amp Pro4 screens
GhostScope4 screens

Verdict

The call

The clearest difference is in-app purchases: Sound Amp Pro at none against GhostScope's 4. Sound Amp Pro also leads on ads (none vs shown) and update cadence (weekly vs monthly). On price, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. GhostScope sells 4 in-app purchases, starting at $0.99 per 7 days. Sound Amp Pro asks for nothing beyond the download.

UpkeepUpdate frequency

Sound Amp Pro ships an update weekly, GhostScope monthly. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

Scorecard3 real differences ยท 3 level
Sound Amp Pro versus GhostScope: the parameters behind the verdict, then further details
ParameterSound Amp ProGhostScope
PriceFreeFree
Update frequencyWeekly โ€” betterMonthly
AdsNo โ€” betterYes
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.017.4 โ€” better
Further details โ€” not scored
Size21 MB8 MB
Age rating17+4+
DeveloperOmar M Abu sharifaGrima Hdez

In-app purchases

None

Sound Amp Pro

No in-app purchases

4 purchases

GhostScope

Subscriptions3
  • GhostScope Pro Weekly3 Days trial$0.997 Days
  • GhostScope Pro Monthly3 Days trial$1.991 Month
  • GhostScope Pro Yearly3 Days trial$2.991 Year
One-time1
  • GhostScope Pro Lifetime$3.99

Questions

Is Sound Amp Pro free?
Sound Amp Pro is free to download, with no in-app purchases.
Is GhostScope free?
GhostScope is free to download, with in-app purchases available.
Do Sound Amp Pro or GhostScope have ads?
GhostScope shows ads; Sound Amp Pro does not.
Which is updated more often, Sound Amp Pro or GhostScope?
Sound Amp Pro ships an update weekly, and GhostScope monthly. Most recently, Sound Amp Pro was updated on October 28, 2026 and GhostScope on October 29, 2026.

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