OnClock vs Necrophonic Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OnClock
Customize your home screen with unique clock widgets. Choose from designer fonts, personalized gradient colors, and adjustable text sizes. Enhance your widget with a background image for a personalized look.
- 20 designer font types
- Customizable gradient colors
- Adjustable time and date text size
- Background image support
- Home screen widget decoration
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Decorate your home screen with your own clock widget with OnClock. * Supports 20 types of fonts carefully selected by designers. * You can specify the gradient color yourself. * You can adjust the size of the text for the time and date. * Add a background image to create a cool clock widget. [Contact us] momots_works@naver.com https://onclock-official.blogspot.com
Necrophonic Pro
This application generates a unique white noise environment with a radio frequency sweep to aid in paranormal investigations and spirit communication. It includes echo and reverb effects to enhance audio clarity and immersion during ITC sessions.
- White noise generator
- Radio frequency sweep (88.0-108.0 MHz)
- Echo audio effect
- Reverb audio effect
- Optimized for paranormal investigations
- Suitable for beginners and experienced users
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Necrophonic Pro Necrophonic Pro is an advanced ITC (Instrumental Trans-Communication) app designed for EVP (Electronic Voice Phenomena) research and spirit communication. It provides a unique white noise environment to facilitate interaction during paranormal investigations. White Noise & Radio Frequency Sweep The app features white noise that mimics a radio frequency sweep between 88.0 and 108.0 MHz. This creates an audio environment that allows spirits to manipulate the sound and communicate effectively. The sweeping effect enhances the randomness of the audio, making it an excellent tool for capturing EVP responses. Audio Effects: Echo & Reverb Necrophonic Pro also includes Echo and Reverb effects to optimize your ITC sessions: Echo: Helps amplify and repeat sounds for clearer spirit messages in real-time. Reverb: Creates an immersive and spacious sound environment, making subtle communications easier to identify. Why Necrophonic Pro? Simple yet effective white noise generator with a radio sweep effect. Perfect for beginners and experienced paranormal investigators. Built-in audio effects for enhanced communication. Note: This app is intended for entertainment purposes only.
Screenshots
Verdict
The clearest difference is price: OnClock at $0.99 against Necrophonic Pro's $9.99. Necrophonic Pro's advantage is rating (3.0 vs 2.5) and update cadence (every 5 days vs every 3 weeks). On review sentiment, 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
OnClock costs $0.99 and Necrophonic Pro $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Necrophonic Pro holds the better App Store score, 3.0 against 2.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews complicate that: 63% of OnClock's written reviews are positive against 60% of Necrophonic Pro's, so the app with the better star average is not the one people write more warmly about.
OnClock ships an update every 3 weeks, Necrophonic Pro every 5 days. The most recent releases landed on September 25, 2026 and August 19, 2026 respectively.
| Parameter | OnClock | Necrophonic Pro |
|---|---|---|
| Price | $0.99 — better | $9.99 |
| Rating | 2.5 (2 ratings) | 3.0 (1 ratings) — better |
| Positive reviews | 62.5% of reviews — better | 60.0% of reviews |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 3 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 13 MB | 94 MB |
| Age rating | 4+ | 9+ |
| Developer | AHN YOONJI | Ali Mert TUFEKCI |
Customer experience
OnClock
Necrophonic Pro
In-app purchases
OnClock
No in-app purchases
Necrophonic Pro
No in-app purchases
