レーダー地図 vs DTalker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
レーダー地図
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半径を指定して、その圏内にある項目を表示するための地図アプリです。視覚に障害のある方でも操作しやすいようVoiceOverに最適化されています。
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
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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
Screenshots
Verdict
The clearest difference is in-app purchases: レーダー地図 at none against DTalker's 2. レーダー地図 also leads on iOS requirement (14.0 vs 16.0). DTalker's advantage is update cadence (every 3 weeks vs every 30 months). On price, ads 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. DTalker sells 2 in-app purchases, starting at $0.99 per month. レーダー地図 asks for nothing beyond the download.
レーダー地図 ships an update every 30 months, DTalker every 3 weeks. The most recent releases landed on September 9, 2026 and July 5, 2026 respectively.
| Parameter | レーダー地図 | DTalker |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 30 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, Mac — better |
| Requires iOS | 14.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 6 MB | 81 MB |
| Age rating | 4+ | 4+ |
| Developer | Yoshiyuki Koyanagi | CREATE SYSTEM DEVELOPMENT CO., LTD |
In-app purchases
レーダー地図
No in-app purchases
DTalker
- Unlock Demo Version monthly$0.991 Month
- Unlock Demo Version 2 months$1.992 Months
