Ghost Call DX vs SAYGO4.0
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ghost Call DX
This app offers interactive character calls and animations designed to encourage good behavior in children. Featuring a variety of popular characters with unique voices and scenarios, it aims to make learning routines like brushing teeth and tidying up fun.
- Interactive character calls
- 2.5D animation
- Rotating character voices
- Encourages good habits
- Multiple popular characters
- Educational scenarios
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Most popular in Japan! Over 24 million downloads! From "Ghost call" series of earliest child-rearing support apps, "Ghost call DX" is now available! It's focusing on foreign characters and 2.5D animation! The popular characters' voices rotate through 3 patterns, so you'll never get bored with them! ≪ 3 patterns of characters ≫ Red Demon... The "Red Demon" with powerful 2.5D motion! If you don't do what he says, he will put you in a spicy hot pot! Zombie ... A zombie who is too hungry and will eat for you. Wolf man... He hates baths and itches all over his body! Let's take a bath so we don't end up like the wolf man! Witch ... Her teeth are tattered and look scary! You may learn the importance of brushing your teeth. Dracula... They take turns going around the houses of children who don't sleep. ≪ Other popular calls ≫ Cat ... He'll praise you when you clean up after yourself! Santa Claus ... He'll tell you a story to be a good boy/girl! If you have any questions about the app or instructions, please contact us at (support@media-active.co.jp). Ghost Call DX Service Page https://ghostcalldx.com
SAYGO4.0
This app allows users to stream educational video content and audio from Saypen devices without downloads. It offers a "Ten Ten Education System" for enhanced learning efficiency and focus. The app supports a simple three-step process for easy access to learning materials anytime, anywhere.
- Stream video and audio content
- No download required
- Ten Ten Education System
- Easy three-step access
- Home-schooling support
- Bluetooth connectivity with Saypen
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언제 어디서나 스마트기기로 세이북 영상을 볼 수 있는 앱 세이고(SAYGO)가 4.0으로 업그레이드 되었어요! ■ 다운로드없이 스트리밍 방식으로 편리하게 세이펜 음원 다운로드 없이 바로바로 음원을 들을 수 있고, 교육용 영상 콘텐츠를 바로 볼 수 있는 입체 교육이 가능해요. ■ 음성10분 영상10분 텐텐교육시스템 세이고(SAYGO) 앱을 통한 듣기훈련과 시청각 교육으로 학습의 효율성과 집중도를 극대화한 교육시스템을 경험할 수 있어요. ■ 세이고(SAYGO) 앱과 함께 하는 학습 루틴 언제 어디서나 나만의 홈스쿨링 가능. 집에서도, 차 안에서도, 여행지에서도 세이고(SAYGO) 앱과 학습 루틴을 유지할 수 있어요. ▷ Easy! (Three GO 방식) 세이고(SayGo) 3단계 실행 방식 ① 앱을 켜고 (one Go) ② 펜을 켜고 (two Go) ③ 책을 찍고 (three Go) ▷ Simple! (Three NO) 세이고(SayGo)의 세가지 혜택 ① No Download 핀파일을 다운로드할 필요 없고 ② No Memory 메모리를 확장할 필요 없고 ③ No Manual 사용법이 필요 없고 ■ 세이고(SAYGO) 가능한 세이펜 블루투스 기능이 되는 세이펜은 모두 가능! - 4세대 세이펜(레인온펜, 태극온펜, 세이온펜) - 3세대 세이펜(레인보우펜, 태극펜, 스쿨펜, 피노키오펜, 세이봇, 세이카, 티칭펜) - 세이고 전용펜(지니펜, 바바펜) ========================================== * 세이펜의 블루투스 수신 연동 방식으로 스마트기기와 신호를 주고받습니다. * 스마트기기의 블루투스와 위치값을 켜주셔야 연결됩니다. * 세이펜의 전원을 켜고 Toss (또는 Mode)버튼을 길게 눌러 세이고 앱과 연결합니다. * 세이고는 북코드기능이 적용된 교재만 가능합니다. * 일부교재는 전체듣기 기능이 불가능합니다. * 세이고는 언어변환기능이 불가능합니다. (통스는 tong, follow, shadow 기능이 불가능합니다.) * 세이고는 T버튼 기능(번역기능)이 가능합니다.
Screenshots
Verdict
The clearest difference is review sentiment: Ghost Call DX at 63% against SAYGO4.0's 24%. SAYGO4.0's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, update cadence, device support and iOS requirement 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. Ghost Call DX sells 2 one-off in-app purchases. SAYGO4.0 asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 29, 2026 and October 26, 2026 respectively.
| Parameter | Ghost Call DX | SAYGO4.0 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (26 ratings) — better | — |
| Positive reviews | 63.0% of reviews — better | 24.1% of reviews |
| Number of ratings | 26 — better | — |
| Update frequency | Every 2 months | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 14.5 — better |
| Further details — not scored | ||
| Size | 66 MB | 1 MB |
| Age rating | 17+ | 4+ |
| Developer | MediaActive Inc. | SAYPENELECTRONICS Co., Ltd. |
Customer experience
Ghost Call DX
SAYGO4.0
In-app purchases
Ghost Call DX
- 100points$0.99
- 200points$1.99
SAYGO4.0
No in-app purchases
