# KOSAK: AI Crypto & Stocks — Honest signals, real accuracy > AI-powered crypto and stock market analysis with transparent accuracy rates. (iPhone/iPad app by SUKHO KO.) - Source: https://appshunter.io/ios/app/kosak-ai-crypto-and-stocks/id6788209635 (this page in markdown: same URL + `.md`) - Developer: [SUKHO KO](https://appshunter.io/developer/6788209637) - Category: Finance - Price: Free - Age rating: 4+ - Requires: iOS 15.0 · 28 MB - Languages: Korean, German (Germany), Russian, Vietnamese, European Spanish, American English, Indonesian, Japanese, Chinese (Simplified, China), Chinese (Traditional, Taiwan) and 4 more - Released: 2026-07-08 - Data updated: 2026-09-18 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/kosak-ai-crypto-and-stocks/id6788209635/reviews.md ## What is KOSAK? WE DON'T PRETEND TO BEAT THE MARKET A 90% accuracy claim sounds great. KOSAK's models usually land near 50% — about a coin flip — and we print that number right next to every prediction, updated as new data arrives. That honesty is the product. KOSAK was built by a developer who works with machine learning for a living, and the goal was never to pick trades for you. It's to hand you real signals, real hit rates, and the context to make your own call. WHAT'S INSIDE AI Outlook Score Moving averages, RSI, MACD and volume are combined into a single bullish / neutral / bearish read you can grasp in a second — with the reasoning behind it visible, not hidden. On-device deep learning A neural network trains per ticker, right on your iPhone. Its walk-forward hit rate is published as measured — flattering or not. Server-side ML An additional signal trained across many assets at once, for a second opinion that doesn't depend on one chart. Self-audited backtests Every model is replayed against historical data and the resulting accuracy is shown raw. No cherry-picked windows. Forecasts and pattern matching Next-candle and longer-horizon projections, plus a search through past price history for setups that resembled today's. CHARTS THAT DO REAL WORK - Candlestick chart with the AI projection line on the same screen - Drawing tools: trend lines, horizontal levels, Fibonacci retracements, volume-by-price zones - Timeframes from minutes to hours, days, weeks and months - Bitcoin, Ethereum and altcoins from Binance, plus US stocks; Korean markets are included as well ALERTS THAT FIRE WITH THE APP CLOSED - New listing detection for Binance crypto and US stock IPOs - Target price alerts for anything on your watchlist - Optional Telegram digests of your tracked tickers TRADING JOURNAL Log buys, sells and averaging down. KOSAK keeps your average cost and running P&L automatically, then points out the emotional patterns — revenge entries, panic exits, position sizing that drifts. MARKET CONTEXT Fear & Greed Index, total market capitalization, BTC dominance, and the US CPI / PPI calendar, with plain-language notes on how a headline may ripple through the market. LEARNING CENTER Start at "what is a candlestick" and work up through indicators, chart structure and strategy. Crypto and equities, no jargon left unexplained. BUILT THE WAY IT SHOULD BE - Free to use - No account required — sign in only if you want to sync across devices - Dark theme, passcode lock - Available in 14 languages WHAT KOSAK IS NOT KOSAK does not execute trades, hold a wallet, custody funds, move money, or provide investment advice. There is no brokerage connection and no order book. It reads public market data, runs models on it, and shows you the results — including how often those models have been wrong. No model can promise certainty. We'd rather show you the odds. DISCLAIMER KOSAK is provided for informational and educational purposes only. Nothing in the app constitutes investment, financial, legal or tax advice, and no output is a recommendation to buy or sell any asset. Model accuracy is typically close to 50%, past performance does not indicate future results, and any forecast may be wrong. Cryptocurrency and equity markets are volatile and you can lose money. All investment decisions, and the outcomes of those decisions, are your own responsibility. KOSAK is an independent app and is not affiliated with, endorsed by or sponsored by Binance, Telegram, or any exchange, broker or data provider. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://kosakl.pages.dev/privacy.html [Aug 2026] • Japan, Taiwan & India stocks added — Toyota, TSMC, Reliance and thousands more • Price-ladder: see if you bought at the head or the feet • Morning watchlist briefing (can be turned off) ## Key features - AI Outlook Score with reasoning - On-device and server-side ML models - Self-audited backtests - Forecasts and pattern matching - Interactive charting tools - Real-time alerts - Trading journal with P&L tracking ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/kosak-ai-crypto-and-stocks/id6788209635/reviews.md ### 5/5 — 방향성제시 *2026-08-14* 일마다 맞을순 없지만 가는 방향은 아주 잘 맞는편인거같아요 저는 제 생각과 얘가 일치할때 사는데 전망률이 높으면 떨어져도 웬만하면 오르더라고요 무료일때 아주 잘쓰고있습니다 감사합니다 **Developer response:** 안녕하세요, 코싸크 개발자입니다. 정성 어린 리뷰 정말 감사드립니다 🙏 말씀해주신 그대로예요 — 코싸크는 "무조건 맞는 예측"이 아니라, 매수·매도가 고민될 때 한 번 더 확인하는 참고 도구를 지향합니다. ### 5/5 — 주식, 코인을 한번에 볼 수 있는 대시보드 좋네요 *2026-07-15* 업비트랑 국내/해외 주식 시세를 따로따로 확인하기 번거로웠는데, 코싸크는 깔끔하게 정리된 대시보드 하나로 다 볼 수 있어서 유용하네요 AI가 분석한 매수/매도 시그널과 예측 그래프가 쉽게 시각화되어 있어 차트 보기 어려운 초보자들에게 큰 도움이 될 것 같아요. 무작정 맹신하기보다는 내 분석과 비교해 보면서 크로스체크하는 용도로 사용중인데 좋네요 **Developer response:** 후기 감사합니다 🙏 "맹신 말고 내 분석과 크로스체크하는 용도"— 저희가 딱 의도한 사용법이에요. 부풀리지 않은 실제 적중률로 스스로 판단하는 투자에 도움되도록 계속 다듬을게요. 필요한 기능 있으면 언제든 남겨주세요 😊 ### 5/5 — 주린이에게 좋은 어플 *2026-07-09* 주식 잘 몰라서 그냥 이것저것 찾아보다가 코싸크 깔아봤는데 생각보다 괜찮네요 처음엔 AI 예측 이런거라길래 솔직히 좀 광고같고 별 기대 안했는데 막상 써보니까 차트 보기도 편하고 관심종목 정리해두기 좋아요. 예측이 무조건 맞는다 이런건 아닌데, 제가 혼자 볼때보다 참고할만한게 생겨서 좋았어요. 특히 주식 초보 입장에서는 뭐부터 봐야될지 잘 모르는데 코싸크는 화면이 복잡하지 않아서 괜찬았어요. 매수할지 말지 고민될때 한번 더 확인하는 용도로 쓰고 있습니다. 아직 오래 써본건 아니라 100프로 좋다 이런말은 못하겠지만 지금까진 만족중이에요. 투자는 결국 본인이 판단해야겠지만 참고용으로는 나쁘지 않은 앱인듯 합니다 ㅎㅎ **Developer response:** 안녕하세요, 코싸크 개발자입니다. 정성 어린 리뷰 정말 감사드립니다 🙏 말씀해주신 그대로예요 — 코싸크는 "무조건 맞는 예측"이 아니라, 매수·매도가 고민될 때 한 번 더 확인하는 참고 도구를 지향합니다. 그래서 적중률도 부풀리지 않고 실제 수치 그대로 보여드리고 있어요. 주식이 처음이신 분들도 부담 없이 쓰실 수 있게 화면과 기능을 계속 다듬어가겠습니다. 최근 업데이트로 Apple·Google·카카오 로그인이 추가되어 관심종목을 여러 기기에서 동기화할 수 있으니 편하게 써보세요. 바라는 기능이 있으시면 언제든 알려주시면 반영하겠습니다. 감사합니다! ## Frequently asked questions about KOSAK ### What are the main features of KOSAK? KOSAK offers an AI Outlook Score, on-device deep learning, server-side ML, self-audited backtests, forecasts, pattern matching, interactive charts, real-time alerts, and a trading journal. It also provides market context and a learning center. ### How does KOSAK ensure accuracy in its predictions? KOSAK's models typically land near 50% accuracy, which is displayed next to every prediction and updated with new data. The app emphasizes transparency by showing the hit rate of its models, including how often they have been wrong. ### What types of assets can I analyze with KOSAK? You can analyze Bitcoin, Ethereum, and altcoins from Binance, as well as US stocks. Korean markets are also included. The app supports timeframes from minutes to months. ### Does KOSAK execute trades or provide investment advice? No, KOSAK does not execute trades, hold funds, custody money, or provide investment advice. It reads public market data, runs models, and shows the results, including accuracy rates, to help users make their own decisions. ### Is KOSAK available on multiple devices? KOSAK is available on iPhone and iPod. An account is not required for basic use, but signing in allows syncing across devices. ### How frequently is KOSAK updated? The latest version of KOSAK is 1.3, and it was last updated on August 10, 2026. The app is designed for continuous improvement based on new data and user feedback. ### What is the age rating for KOSAK? KOSAK has an age rating of 4+, making it suitable for a wide range of users interested in financial markets and analysis. ### Does KOSAK have ads? No, KOSAK is free to use and does not contain advertisements. The app focuses on providing a clean and uninterrupted user experience for market analysis. ## Version history (last 5 releases) ### 1.6 — 2026-09-10 · Price alerts now arrive even when the app is closed and open the chart on tap · Notifications received while the app is open now show in the status bar · Stability and usability improvements ### 1.5 — 2026-08-26 - Stability and usability improvements - Short-term drift (crypto): a 1-hour directional edge label backed by 3 years of measurement. Not a trade signal; not part of the score. ### 1.4 — 2026-08-19 • Japan, Taiwan & India stocks added — Toyota, TSMC, Reliance and thousands more • Price-ladder: see if you bought at the head or the feet • Morning watchlist briefing (can be turned off) • Ad-removal options (monthly or one-time lifetime) • Stability improvements ### 1.3 — 2026-08-10 • The app now officially supports 14 languages • Reorder market tabs your way (Settings) • Rank column is back in the market list • Layout and stability improvements ### 1.2 — 2026-08-08 New listing detection is faster and more reliable for Binance and US IPOs. Full support for 14 languages across the app. Backtest and hit-rate displays refreshed. Chart drawing tools and alert delivery are smoother, with assorted fixes. ## More apps by SUKHO KO - [Maeum: Mood Diary & Horoscope](https://appshunter.io/ios/app/maeum-mood-diary-and-horoscope/id6788278550) - [Sikdan Lab — Meal Planner](https://appshunter.io/ios/app/sikdan-lab-meal-planner/id6795957453) - [Chomp: Crocodile Roulette](https://appshunter.io/ios/app/chomp-crocodile-roulette/id6797767592) All apps by SUKHO KO: https://appshunter.io/developer/6788209637 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-18.*