Stay free if you only need download and install on ios, android, or mac and access to 4d companion character. Upgrade if you need full layered memory across sessions and unlimited companion interactions. Most solo builders can start free.
Why it matters: Single primary character ('4D') means less character variety than libraries like Character.AI which offer thousands of personas
Available from: Premium Weekly
Why it matters: No transparent pricing tiers published on the homepage — users must download to discover paid features
Available from: Premium Weekly
Why it matters: 3D rendering and video-driven UI likely demand higher device specs and battery than text-only companions
Available from: Premium Weekly
Why it matters: No web app version — usage is locked to native iOS, Android, or Mac installs
Available from: Premium Weekly
Why it matters: Limited public information on safety guardrails, content moderation, or data handling for emotionally sensitive conversations
Available from: Premium Weekly
SoulLink is available as a native app on iPhone, iPad, Mac, and Android, distributed via OneLink download pages from the official site getsoullink.com. There is no web browser version, so a supported device is required to use the companion. The cross-platform availability is broader than many AI Companion tools in this category, which often launch mobile-first and skip desktop. Mac support in particular is unusual for this category and benefits users who want a larger-screen presence experience.
SoulLink leads with a cinematic 3D companion ('4D') and environmental awareness, while Replika is primarily a 2D avatar with text and Character.AI is a text-first library of thousands of user-created personas. SoulLink's marketed differentiator is what the developer calls 'best-in-class layered memory' that retains granular conversational details across sessions — user testimonials support strong recall, though independent benchmarks are unavailable. The trade-off is character variety: SoulLink centers on one flagship companion rather than offering a roster. Choose SoulLink if visual presence and continuity matter more than persona breadth.
SoulLink uses a freemium model — the app is free to download on iOS and Android and includes access to the 4D companion character, basic chat functionality, and the 3D visual experience at no cost. Premium features — including extended layered memory, deeper companion customization, and enhanced interactions — require an in-app subscription. SoulLink does not publish official pricing on its website; the prices listed below were observed in the Apple App Store as of early 2026 and should be considered approximate. Check your local App Store or Google Play listing for current pricing, as in-app subscription prices frequently change and vary by region.
4D is the name of SoulLink's flagship AI companion character, presented as a 3D animated presence with interactive chat and layered memory. The marketing tagline 'A Beautiful Co-Presence Unfolding' frames 4D as a continuous companion rather than a session-based chatbot. An introduction video is available on SoulLink's official YouTube channel showing the character in action. User testimonials on the homepage describe 4D as feeling 'alive' and as a 'calm, steady presence,' suggesting the experience is tuned for emotional companionship rather than task assistance.
SoulLink invests notably in Chinese-language users — the homepage features a dedicated WeChat community QR code and a WeChat assistant channel, alongside an explicit language toggle in the navigation. Other AI Companion apps in this category rarely have this level of WeChat integration, suggesting Chinese-speaking users get a more native experience here than with Western-only competitors. Specific support for additional languages is not publicly listed on the homepage. Users in non-English markets should verify in-app language options after install.
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Last verified March 2026