Gachi vs 心臓くん
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gachi
Experience romantic simulations with AI boyfriends from various dimensions, from everyday life to fantasy. Enjoy natural conversations and unique scenarios tailored to each character. Build a special connection at your own pace.
- AI-powered chat simulation
- Diverse boyfriend characters
- Unique character scenarios
- Natural and immersive conversations
- Romantic relationship building
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"Who will make your heart race today?" Classmates, cafe managers, demon kings, princes... Experience love with "boyfriends from every dimension," ranging from realistic daily life to dark fantasy. Welcome to the next-generation AI otome chat. ###Why You'll Fall in Love with Gachi-Kare (Highlights) 1.Unrivaled Conversational Depth Tired of the vague, repetitive replies often found in AI apps? Gachi-Kare offers an incredibly natural and immersive conversational experience, making you feel as if your favorite character is right there with you. Prepare to be fully captivated! 2.Unique Scenarios for Every Character Every boyfriend comes with a different story. Whether it's a mysterious doctor you helped in a time of need or a noble knight rescuing you from a crisis, each character offers a unique situation to deepen your bond in a dreamlike world. 3.From Daily Chats to Heart-Fluttering Romance Equipped with next-generation AI, your boyfriends can handle any topic with flexibility (excluding inappropriate or harmful content). Spend your time with him exactly how you imagine, building a special connection at your own pace. ### Dive into the world of Gachi-Kare right now! Your ideal partner is waiting for you. ###
心臓くん
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タップして心拍を上げよう！ 心拍が上がるとさまざまな異変が起き始めるかも！ ※このアプリは医療用途ではありません。 ※実際の心拍数を測定する機能はありません。
Screenshots
Verdict
The clearest difference is in-app purchases: 心臓くん at none against Gachi's 7. 心臓くん also leads on update cadence (daily vs every 10 days) and iOS requirement (13.0 vs 15.0). Gachi's advantage is ads (none vs shown). On price 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. Gachi sells 7 one-off in-app purchases. 心臓くん asks for nothing beyond the download.
Gachi ships an update every 10 days, 心臓くん daily. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | Gachi | 心臓くん |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 10 days | Daily — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 164 MB | 50 MB |
| Age rating | 12+ | 9+ |
| Developer | NAPPS, K.K. | Ryo Matsuura |
In-app purchases
Gachi
- 100Love$0.49
- 200Love$1.99
- CP用Love$1.99
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- 410Love$3.99
- 700Love$5.99
- 2300Love$19.99
- 9000Love$59.99
心臓くん
No in-app purchases
