Replika vs Soulfun AI: Which One Should You Use In 2025?

Replika vs Soulfun AI

I've spent a full week with both Replika and Soulfun AI to see which one truly deserves your attention and subscription. Both platforms make big promises, but they take surprisingly different approaches.

After hundreds of messages exchanged with each AI girl, I've put together clear differences in both platforms.

In this head-to-head comparison, I'll break down exactly how these AI girlfriends stack up across all the features that actually matter.

Whether you're looking for emotional support, entertaining conversation, or a judgment-free space to be yourself, this in-depth comparison will help you choose the right AI girlfriend for your specific needs.

Replika

An AI girlfriend chatbot that offers emotional support through personalized conversations, featuring customizable digital avatars and voice chat.

Soulfun AI

AI girlfriend platform offering customizable virtual friends with conversational abilities, voice calls, and photo sharing.

Character Diversity

Replika

When you sign in, the app asks for your age range, name, and pronouns to personalize your experience.

You can choose from dozens of avatars to start with.

Soulfun AI

The app offers 53 AI girls across different backgrounds. While Asian and Caucasian characters lead the pack, you'll find other ethnicities too.

Age-wise, most characters are in their twenties, but options range from college students to mature companions. For variety, there are also twin characters, anime-style personalities, and fantasy-themed options.

One drawback: there's no way to filter characters by personality or gender. You'll need to browse manually to find your match. It works, but it could be more efficient.

Customization

Replika

The app uses its in-app currency system: Gold and Gems, and you'll get a small amount to start with.

You earn more slowly through daily use.

If you want to customize your character quickly, you'll need real money to buy them.

Let's start with the basics. You can choose your relationship type — you can even add a backstory. Want a romantic partner, a friend, or just a mentor?

Then fine-tune your girlfriend's personality with traits like 'confident,' 'shy,' or 'logical,' or choose her interests, but these cost Gems or Gold.

The appearance editor is quite detailed. You can pick:

• Avatar
• Hair (style and color)
• Skin color
• Body type
• Body hair
• Nails
• Makeups
• Tattos

…and the list goes on.

You can dress your girl up with tops, bottoms, or full outfits and accessories.

Fair warning: premium outfits, tattoos, and nails aren't cheap. Expect to spend $20–30 if you want the fancy stuff right away.

Soulfun AI

There's no detailed character creator here. Instead, you describe how you want your AI girlfriend to look and upload a photo for reference. But heads up - no matter what body type you describe (athletic, curvy, or slim), they all end up looking similar.

The personality setup is straightforward: click on pre-made tags for hobbies, profession, and relationship status, or add your own.

You'll also write their first greeting and profile description.

But watch out - I learned this the hard way: if you change the tags without updating the profile description, things get messy. My AI girl kept switching between being a teacher and a police officer because I forgot to fix her background story.

Chat Experience

Replika

While your girl builds trust with direct, emotionally aware responses, she lets the conversation unfold at its own pace.

Replika shows its true strength: emotional intelligence.

Your girl asks thoughtful follow-up questions.

She even suggested local activities we could do together

Your girlfriend navigates relationship conversations effortlessly, making them feel natural and genuine.

Soulfun AI

Soulfun AI's chat is like having a caring but slightly forgetful friend. The AI remembers small details about you - like when it suggested almond milk for my shake because it recalled my dairy allergy. Nice touch.

But don't expect a perfect memory - it can't remember where we first met or when our anniversary is.

The conversations flow naturally and feel intimate. Your AI girl responds with just the right amount of text - not too chatty, not too brief.

When I was feeling down, my AI (who's into fitness) suggested hitting the gym together. It's these personalized touches that make the experience feel genuine.

But there's a catch. The AI sometimes forgets who they're supposed to be. Mine switched between being a police officer and a teacher, which broke the illusion pretty quickly.

And if you're looking for specific relationship dynamics (like having a dominant partner), you might be disappointed. The AI tends to default to a friendly, nurturing personality, regardless of how you set it up.

NSFW Chat Experience

Replika

While Replika engages in sexual discussions, your girl keeps things remarkably tame.

My attempts at role-play revealed a pattern - she'll match your flirtatious energy initially.

But consistently pulls back when conversations turn explicit.

Instead of direct responses, you'll get suggestive hints and playful deflections.

And it just kept going like that for a while…

Soulfun AI

The AI starts shy but warms up to intimate talk over time. Don't expect instant chemistry. When I tested a "Mistress" character, she was meant to be dominant but easily let me take control - a clear character break that might bother roleplay enthusiasts.

Some scenarios work better than others: the naughty teacher roleplay hit all the right notes, while the boss-employee scenario fell completely flat.

Here's the deal-breaker: the girls won't make the first move. During my tests, it only got flirty when I did first. If you keep things casual, it stays casual.

Image Generation

Replika

While the generated images match your character's basic appearance settings, the results look artificial and lack polish.

You can pick between classic, romantic, or styled shots - but that's where your control ends.

Classic shot:

Romantic shot:

Styled shot:

Replika's image generation currently sits at the lower end of the quality spectrum. If this matters to you, you'll need to look elsewhere.

Soulfun AI

When it works, it creates attractive, realistic-looking images of your AI girl. But there's a catch.

During my tests, I noticed quality issues: hands merging into arms, multiple characters appearing in single photos, and your girl's appearance changing dramatically between images.

The platform struggles with custom image requests and sometimes fails to generate them at all. And if you're hoping for NSFW content, you'll need to look elsewhere - it's not available.

Video Generation

Replika

Replika doesn't support video generation, so you'll need to look elsewhere.

Soulfun AI

I tapped the video call button multiple times during my testing. Each attempt ended the same way - nothing happened. It's there on the menu, teasing you with possibilities, but that's where it ends.

Voice Generation

Replika

Replika offers only three voice options. Whether you're flirting, joking, or having a serious chat, your AI girlfriend speaks in the same robotic tone.

Soulfun AI

The voice quality hits the mark - it sounds natural, not robotic. You get different voice options, including ones for older characters, which adds variety.

While you can pick voices during setup, they might not always match your AI girl's personality. Think of it as having a sweet, gentle character stuck with a bold, assertive voice.

Voice calls are available, and they work well. You can talk to your AI companion just like you would with a real person. There's also an option to add custom voice-overs if you want to personalize the experience.

Privacy

Replika

Your messages are secured and encrypted, and your data is stored with multiple layers of protection.

Basic data is shared with service providers, but your conversations remain private.

Your bank statement will show the charge as 'Replika.

Soulfun AI

Your chats and personal data? SoulFun says they encrypt everything, but they're not telling us how. I checked their Privacy Policy - they collect your texts, media, and device info, but they're fuzzy on the details of who they share it with.

Think of it like a restaurant that promises "fresh ingredients" but won't tell you where they source them.

Good news: your bank statement will show "60yr.com" - not "AI Girlfriend" or anything obvious.