GainDay - Stocks Portfolio

iPhone / Finance

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.

Privacy: https://gainday.app/privacy
Terms: https://gainday.app/terms
Support: https://gainday.app/support

Quoi de neuf dans la dernière version ?

Gainday 3.0 - biggest leap since 2.0:

▸ Pro+ Proactive AI Insights - AI scans your portfolio daily, surfaces what matters
▸ Daily AI Brief - 3-section personalized market read (Macro / Tech / Global)
▸ Full options trading - chain, Greeks, 4 strategy templates, assignment risk
▸ Four calendars - Earnings / Dividends / Economic / IPO with month grid
▸ Photo OCR import - any broker screenshot, OpenAI Vision auto-parses
▸ Investment journal + auto retrospectives - 30 / 90 / 365 day reflection prompts
▸ Performance attribution - Sharpe / Sortino / Max DD / benchmark comparison

China users: 5,000+ A-share names ship in-app for instant search; news image proxy unblocked.
Japan: NISA continues to evolve, accurate fund pricing.
Worldwide: one-tap data deletion, hardened paywall, dozens of stability fixes.

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