Zeta (제타) by Scatter Lab vs Wrtn (뤼튼) vs Kakao Kanana vs HyperCLOVA X
A side-by-side look at scores, pricing and features — with RECATOOLS' ASEAN-aware verdict for each.
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Wrtn (뤼튼)
Korea's free AI app, from the company behind Crack and Kyarapu
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HyperCLOVA X
NAVER's Korean-first LLM family, sold through CLOVA Studio
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| RECATOOLS Score | 6 / 10 | 6.1 / 10 | 7.2 / 10 | 7.8 / 10 |
| Capability | ||||
| Value for money | ||||
| Ease of use | ||||
| ASEAN readiness | ||||
| API quality | ||||
| Pricing | Freemium | Freemium | Free | Freemium |
| Free tier | Free, unlimited character chat with ads on the default model; premium koji and luca models and Snapshot cost Pieces | Free sign-up to the Wrtn app (chat, writing tools, YouTube summaries, live recording); Crack sells crackers priced only in-app | Kanana in KakaoTalk is built into the messenger; Kanana model weights are free to download under their per-release licences | Open-weight HyperCLOVA X SEED models (0.5B to 32B) free on Hugging Face under NAVER's model licences |
| Paid from | zeta pass ₩14,900 / US$14.99 / ¥1,650 a month (App Store); Pieces sold separately | — | Separate Kakao licence, quoted on request, to resell Kanana-2 or above 10M monthly users | Pay-as-you-go per 1,000 tokens on CLOVA Studio (rates load in NAVER Cloud console) |
| Has API | ✗ | ✗ | ✓ | ✓ |
| Open source | ✗ | ✗ | ✓ | ✗ |
| Free to use | ✓ | ✓ | ✓ | ✓ |
| Users | — | — | ~54M worldwide KakaoTalk MAUs (Statista, Q2 2024) | Embedded across Naver's search and shopping services in Korea |
| Founded | 2024 | 2022 | 2025 | 2023 |
| Maker | Scatter Lab, Inc. | Wrtn Technologies (뤼튼테크놀로지스) | Kakao Corp. | NAVER Cloud |
| Verdict | Zeta has real scale: the Korea Herald put it at 1.5 million monthly users in January 2026, over 90% in their teens or twenties, and since May 2026 it is on app stores worldwide. The risks are content and intellectual pro... |
For Korean speakers, Wrtn remains an easy free entry point to a current chat model with writing, summary and recording tools, and no published subscription price to weigh. The company behind it is now an entertainment bu... |
For most readers outside Korea, Kanana means the models. Kanana-2 is a capable 30B mixture-of-experts release with Thai and Vietnamese among its six languages, and its licence allows commercial use inside your own servic... |
HyperCLOVA X is the default choice when Korean language quality and Korean data residency both matter. NAVER's own benchmarks show strong Korean results, the tokenizer is tuned for Korean text, and the SEED line gives se... |
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Comparisons cover up to 4 tools. Scores are RECATOOLS editorial assessments; verify current pricing on each vendor's site.