A Word Clock vs Signal Generator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
A Word Clock
This utility displays the current time using natural language phrases instead of digits. It offers spoken output, multiple language options, and customizable themes. A widget is also available for quick glances, maintaining your chosen settings.
- Time displayed in words
- Optional spoken output
- Multiple language support
- Customizable color themes
- Widget support
- "Lazy time" phrasing
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Read the time as words, at a glance. Swipe between a large word clock, digital and analog clocks, date and optional location details, a comparison of relaxed and exact time, and a past–present–future timeline. Choose from expressive themes and high-contrast color palettes. Adjust text size, switch between approximate and exact wording, and tap the clock to hear the time spoken aloud. Time phrases are available in English, German, French, Italian, Spanish, Portuguese, and Simplified Chinese. Add the Home Screen widget to see the time in words without opening the app. Your language and appearance settings carry over to the widget. Location is optional and used only for the details view.
Signal Generator
Generate high-quality audio signals including sine, square, triangle, sawtooth waves, and white/pink noise. Ideal for testing audio systems, frequency response, and hearing capabilities.
- Sine wave generation
- Square wave generation
- White noise generation
- Pink noise generation
- Two-channel phase difference waves
- Audio frequency response testing
- Hearing test capabilities
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A high-quality audio Signal Generator for the iPhone. Now you can have a professional grade signal generator for your iPhone. Create sine waves, square waves, white noise, and pink noise. The signal generator can help you generate sine, square, triangle, sawtooth, white noise, pink noise signals and generate sine two-channel phase difference waves. You can use the signal generator to test your audio frequency response system, system noise scanning, headset burning machine and other scenarios. Test your hearing can hear how low the frequency of sound. Able to apply and experiment with test scenarios.
Screenshots
Verdict
The clearest difference is review sentiment: Signal Generator at 86% against A Word Clock's 50%. Signal Generator also leads on iOS requirement (11.0 vs 17.0). A Word Clock's advantage is update cadence (every 6 months vs every 15 months). On price, ads, in-app purchases and monetization model 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
A Word Clock costs $0.99 and Signal Generator $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
A Word Clock ships an update every 6 months, Signal Generator every 15 months. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.
| Parameter | A Word Clock | Signal Generator |
|---|---|---|
| Price | $0.99 | $0.99 |
| Rating | — | 4.6 (10 ratings) — better |
| Positive reviews | 50.0% of reviews | 85.7% of reviews — better |
| Number of ratings | — | 10 — better |
| Update frequency | Every 6 months — better | Every 15 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, Mac — better | iPhone, iPod |
| Requires iOS | 17.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 2 MB |
| Age rating | 4+ | 12+ |
| Developer | Raymund Vorwerk | 龙刚 李 |
Customer experience
A Word Clock
Signal Generator
In-app purchases
A Word Clock
No in-app purchases
Signal Generator
No in-app purchases
Questions
Is A Word Clock free?
Is Signal Generator free?
Do A Word Clock or Signal Generator have ads?
Which is updated more often, A Word Clock or Signal Generator?
Other comparisons
