DTalker vs Interval Voice Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DTalker
This utility provides Japanese text-to-speech functionality with four distinct voice options. It integrates with system settings for easy voice selection and can be used with accessibility features like VoiceOver. Developers can also utilize it for speech synthesis in their applications.
- Four distinct Japanese voice options
- System voice integration
- Compatibility with VoiceOver
- Developer API for AVSpeechSynthesizer
- Selection reading capability
Read full descriptionHide full description
There are four types of voices: "Takashi", "Keiko", "Taro" and "Hanako". Select "Keiko", "Takashi", "Hanako" or "Taro" from "DTalker_TTS" in "System Settings", "Accessibility", "Reading Content", "System Voice" and then "Japanese". It can also be used to read selections, use with VoiceOver, and for development with AVSpeechSynthesizer. Before using this application, please be sure to read the "License Agreement" below. Installation will be deemed acceptance of this License Agreement. ・License agreement https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ・privacy policy https://www.createsystem.co.jp/main/footer/kojin.html
Interval Voice Clock
This app announces the current time at customizable intervals, allowing for hands-free time checks. It offers adjustable volume, voice options, and background playback, functioning entirely offline.
- Customizable announcement intervals
- Adjustable announcement volume
- Choice of male or female voice
- Background playback support
- Offline functionality
- Multiple announcement types
Read full descriptionHide full description
Signal Time is a simple and easy-to-read app that announces the time at regular intervals. By default, it announces the time every 10 seconds (customizable). Use it in various situations—have it read the time aloud while you're busy getting ready in the morning, or check the time hands-free in the kitchen while waiting for your favorite show to start. No internet connection is required; the app works entirely offline. * Adjust the volume of both the second-hand sound and voice announcements (can be muted) * Set the announcement interval (from every 10 seconds to every hour) * Choose the type of voice used for announcements (female or male) * Supports background playback * Choose the type of announcements (Standard, Simple and Minimal)
Screenshots
Verdict
The clearest difference is price: DTalker at Free against Interval Voice Clock's $1.99. Interval Voice Clock's advantage is in-app purchases (none vs 2) and review sentiment (67% vs 50%). On rating, ratings volume, update cadence and ads 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
DTalker is free to download; Interval Voice Clock costs $1.99 up front. DTalker sells 2 in-app purchases, starting at $0.99 per month. Interval Voice Clock asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for DTalker against 5.0 for Interval Voice Clock. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews are what separate them: 50% of DTalker's written reviews are positive against 67% of Interval Voice Clock's.
DTalker ships an update every 3 weeks, Interval Voice Clock every 2 weeks. The most recent releases landed on July 5, 2026 and September 22, 2026 respectively.
| Parameter | DTalker | Interval Voice Clock |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | 50.0% of reviews | 66.7% of reviews — better |
| Number of ratings | 1 | 1 |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 81 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | CREATE SYSTEM DEVELOPMENT CO., LTD | Ryo Okamoto |
Customer experience
DTalker
Interval Voice Clock
In-app purchases
DTalker
- Unlock Demo Version monthly$0.991 Month
- Unlock Demo Version 2 months$1.992 Months
Interval Voice Clock
No in-app purchases
