GainDay - Stocks Portfolio

v3.0 - Proactive AI insights, daily AI brief, full options chain, 4 calendars, photo OCR. One app for stocks, NISA, options across 5 markets. Built privacy-first.

Tired of juggling Robinhood, Fidelity, SBI, Rakuten, and Yahoo Finance? Gainday unifies stocks, options, mutual funds, and NISA across 5 markets in one app - auto-converted to your base currency, with AI that proactively flags risks you'd miss on your own.

v3.0 is our biggest leap since v2.0. The headline: AI doesn't wait for you to ask anymore. It scans your portfolio + behavior + market shifts daily and surfaces what matters at the right moment.

■ One app, 5 markets + options Japanese stocks · US stocks · China A-shares · Hong Kong · Japanese mutual funds (NISA) · US options - all in one view, auto-converted to USD/JPY/CNY/HKD. Stop tab-switching between brokerage apps.

■ NEW Pro+ Proactive AI Insights (v3 flagship) You don't have to ask. AI scans your portfolio + behavioral patterns + market shifts daily, surfacing observations at the right moment: • Target-weight drift • Single-name concentration risk • Note sentiment vs recent trade-direction misalignment • Major news / earnings approaching for your holdings Powered by a top-tier AI model.

■ NEW Daily AI Brief 3-section market read (Macro / Tech / Global), personalized by language + holdings + sector exposure. Asia (6am JST) / Americas (7am ET) get separate morning pushes.

■ NEW Full options trading management • Live option chain + Greeks (Delta / Gamma / Theta / Vega) + implied volatility • 4 multi-leg strategy templates: covered call · cash-secured put · vertical spread · iron condor • Option P&L aggregation + delta-equivalent concentration • Auto-detect assignment risk (DTE + ITM flag) • OCR broker screenshot -> auto-parse contract -> save

■ NEW Photo OCR import Snap any broker's trade confirmation (SBI · Rakuten · Futu · Snowball · Robinhood). AI parses the trade; preview + one-tap save. Free 5/mo · Pro 50 · Pro+ 200.

■ NEW Investment journal + auto retrospectives Capture your trade thesis. Auto-scheduled retrospective notifications at +30 / +90 / +365 days, comparing your reasoning to actual price action.

■ NEW Performance attribution Sharpe · Sortino · Max drawdown · benchmark comparison (vs SPY / N225 / CSI300). Pro+ unlocks 4-card deep attribution: contributors waterfall · HHI concentration · drawdown timeline · extreme days.

■ NISA done right (Japan users) • Full JFSA NISA catalog: 2,260 unlisted funds · 318 Tsumitate-eligible • Real-time quota consumption: ¥1.2M Tsumitate + ¥2.4M Growth annual + ¥18M lifetime bar • Foreign-currency buys lock in trade-date FX so lifetime quota doesn't drift • Per-10,000-unit pricing for Japanese mutual funds

■ Mainland China region (regional improvements) • A-share / HK search localized: 5,000+ A-share + 2,700+ HK names ship in-app, no Yahoo dependency. "688008" or "腾讯" resolves instantly • News image proxy: foreign CDNs no longer blocked • Economic calendar timestamps aligned to UTC • Explicit consent + one-tap delete for personal data (PIPL compliant)

■ AI private analyst chat (Pro / Pro+) Ask about portfolio performance, what moved today, risk concentration. AI uses 16 tools across live market data, news, holdings, and options. Pro = DeepSeek; Pro+ = top-tier AI model. Strict privacy: weights only.

■ Privacy by design • Core data (holdings, transactions) never leaves your iPhone • Behavioral signals upload requires explicit consent, with one-tap delete (GDPR · PIPL · CCPA) • Data stored in our Tokyo region ■ Core features (preserved) P&L calendar · multi-account · Dynamic Island alerts · monthly + yearly share cards · CSV import/export (SBI · Rakuten · Futu · Snowball · Robinhood) · full localization (zh-Hans · zh-Hant · en · ja) ■ Subscription • Free: forever, all core features • Pro: $3.99/mo · $29.99/yr (AI chat + 50 OCR + advanced analytics) • Pro+: $6.99/mo · $59.99/yr (proactive AI + 200 OCR + top-tier AI)

Payment via Apple ID; subscriptions auto-renew. Cancel anytime in iOS Settings -> Subscriptions.

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