kitio.aiRubii vs Siuu
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Siuu is completely free, while Rubii is freemium.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Long-term character memory
- Editable memory notes
- Custom character creation
- AI image generation
- Web and mobile apps
- AR place discovery
- Chat with places
- Pin and share moments
- Android and iOS apps
| Feature | Rubii | Siuu |
|---|---|---|
| Best for | AI character chat for long, story-driven roleplay with memory | Mobile app for chatting with places through AR and AI |
| Category | Chat assistants | Chat assistants |
| Pricing model | Freemium | Free |
| Starting price | $10.99/mo | Free |
| Free plan | Yes | Yes, fully free |
| Made by | Rubii | Siuu |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Siuu is completely free, while Rubii is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
Free
Free
- Character chat to start
- Web, iPhone and Android
Plus
$10.99/mo
- 800 Rubies per month
- About 1,600 messages or 400 images
Pro
$19.99/mo
- 3,000 Rubies per month
- About 6,000 messages or 1,500 images
Ultra
$39.99/mo
- 6,600 Rubies per month
- About 13,000 messages or 3,300 images
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Rubii
- Characters remember past chats
- You can edit what they remember
- Free to start on web and mobile
- Messages and images use paid Rubies
- Long replies can be slow to read
- Mainly for entertainment use
Siuu
- Mixes AR camera and chat in one app
- Works for nearby and faraway places
- Available on Android and iOS
- Website gives few product details
- No pricing information published
- Coverage of places is not documented
Which one should you choose?
Choose Rubii if you want:
- Characters remember past chats
- You can edit what they remember
- Free to start on web and mobile
Watch out: messages and images use paid rubies.
Choose Siuu if you want:
- Mixes AR camera and chat in one app
- Works for nearby and faraway places
- Available on Android and iOS
Watch out: website gives few product details.
Rubii vs Siuu FAQ
What is the difference between Rubii and Siuu?
Rubii: AI character chat for long, story-driven roleplay with memory. Siuu: Mobile app for chatting with places through AR and AI. Both are chat assistants tools.
Is Rubii or Siuu cheaper?
Siuu is completely free, while Rubii is freemium.
Do Rubii and Siuu have free plans?
Rubii: Yes. Siuu: Yes, fully free.
Who makes Rubii?
Rubii is made by Rubii.
Who makes Siuu?
Siuu is made by Siuu.
Which should I choose, Rubii or Siuu?
Choose Rubii if you value characters remember past chats and you can edit what they remember. Choose Siuu if you value mixes ar camera and chat in one app and works for nearby and faraway places.