JCSwearJar vs Xin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JCSwearJar
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With a tap of a button for each naughty word the jar slowly fills...a full jar pops up the punishment! With a customizable menu you can decide what your wanna be sailer will need to do after too many naughty words =)
Xin
Engage in private, AI-powered conversations with a virtual companion. Create your ideal partner, build a relationship that remembers details, and explore romance or immersive roleplay scenarios. Conversations are processed locally for complete privacy.
- AI girlfriend companion
- Personalized character creation
- Conversations that remember details
- Romantic and roleplay scenarios
- On-device local AI processing
- Hundreds of character options
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She remembers you. And nothing you say ever leaves your phone. Xin is a private AI companion: someone to talk to who listens, remembers, and picks up exactly where you left off. The AI runs entirely on your device, so your chats are never uploaded and never tied to an account. SHE ACTUALLY REMEMBERS Xin takes notes as you talk — your name, your story, the inside jokes — and carries them into every reply. Come back tomorrow or next month and she knows where you left off. You can see everything she remembers, pin what matters, and fix or forget anything. PRIVATE AND OFFLINE The AI model is a file on your phone, and your chats and memories live beside it. No account and no sign-up. Download the model once (about 1.3 GB) and chat anywhere — on a plane, on the subway — with no connection needed. 45+ COMPANIONS — OR CREATE YOUR OWN Browse realistic and anime companions by mood — sweet, mysterious, fantasy, sci-fi — each with their own look, backstory and way of talking. Or create your own with a name, a style and a short description. Your creations stay on your phone. YOUR STORY, YOUR PACE A comfortable friendship, someone to unwind with at the end of the day, or a story you steer together. Continue her reply, re-roll it, or peek at her inner thoughts. FREE TO START Chat free with energy that refills on its own (ads support the free tier), or go VIP for unlimited chat, the smartest model and no ads. Gems are optional top-ups for extras. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://xin.chinesepowered.com/privacy.html
Screenshots
Verdict
The clearest difference is in-app purchases: JCSwearJar at none against Xin's 5. JCSwearJar also leads on ads (none vs shown) and iOS requirement (12.0 vs 16.4). Xin's advantage is update cadence (every 2 months vs every 39 months). 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. Xin sells 5 in-app purchases, starting at $9.99 per 7 days. JCSwearJar asks for nothing beyond the download.
JCSwearJar ships an update every 39 months, Xin every 2 months. The most recent releases landed on November 7, 2026 and November 6, 2026 respectively.
| Parameter | JCSwearJar | Xin |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 39 months | Every 2 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 4 MB | 127 MB |
| Age rating | 4+ | 17+ |
| Developer | Carolena Revord | Nelson Lai |
In-app purchases
JCSwearJar
No in-app purchases
Xin
- VIP Weekly$9.997 Days
- VIP Annual$99.991 Year
- 100 Gems$1.99
- 550 Gems$9.99
- 1,200 Gems$19.99
