心臓くん vs Johnjal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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。
Johnjal
Engage in romantic chats with a personalized AI boyfriend. Discover virtual partners, enjoy interactive stories that change with your choices, and create your own romance scenarios. Experience a unique dating simulation tailored to your preferences.
- AI boyfriend romance chat
- Match with diverse virtual boyfriends
- Interactive romance stories
- Customizable characters and scenarios
- Choice-driven narrative paths
- Dating simulation gameplay
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Johnjal is an interactive story experience where YOU step into the lead role of a cinematic drama. Choose a scenario, become its protagonist, and make choices that shape how your story unfolds. Every world, character, and storyline is original content created and curated by our team, built to pull you in so you're not just reading a story, you're living it. HOW IT WORKS - Pick an interactive scenario and step into the lead role - Make choices at key moments that steer the drama - Follow your own path through richly designed characters and worlds - Return anytime to continue where you left off ORIGINAL INTERACTIVE STORIES - Top Star's Manager: Step into life behind the spotlight, where every decision shapes a world of fame, pressure, and secrets. - Blue Gate Boarding House: Move into a boarding house full of charismatic housemates, each with a story waiting to unfold. - A growing library of original dramas, with new scenarios added regularly. WHY JOHNJAL - Original characters, worlds, and visuals designed by our creative team - Story-first design: immersive, cinematic scenarios instead of endless menus - Your choices matter and shape each playthrough - Fresh interactive dramas added over time Johnjal is an entertainment app. All characters, names, and stories are entirely fictional, and any resemblance to real people is purely coincidental. Have feedback or need help? Visit our support page and we'll be glad to help.
Screenshots
Verdict
The clearest difference is ads: Johnjal at none against 心臓くん's shown. 心臓くん's advantage is update cadence (daily vs every 2 weeks) and iOS requirement (13.0 vs 15.0). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
心臓くん ships an update daily, Johnjal every 2 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | 心臓くん | Johnjal |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Daily — better | Every 2 weeks |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 50 MB | 69 MB |
| Age rating | 9+ | 17+ |
| Developer | Ryo Matsuura | Kodrak Inc |
In-app purchases
心臓くん
No in-app purchases
Johnjal
No in-app purchases









