炼刀机器人 vs Option Pricing Assistant
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
炼刀机器人
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在快节奏的现代生活中,您是否常常被繁琐的任务和信息轰炸所困扰?别担心,炼刀机器人来帮您!我们专注于为您提供与机器人交互、消息发送等相关的高效解决方案,让您的工作和生活变得更加轻松便捷。
Option Pricing Assistant
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Option Pricing Assistant is a professional option valuation tool based on the Black-Scholes model. It helps investors, finance professionals, and students quickly calculate option theoretical prices, implied volatility, and target prices. Supports both call and put options. Just enter your data and get accurate results instantly. Key Features Option Pricing Calculation Based on the Black-Scholes model, enter underlying price, strike price, time to expiration, risk-free rate, and volatility to quickly calculate theoretical prices for both call and put options. Implied Volatility Calculation Enter the option's market price to back out the implied volatility. Helps assess market expectations of future underlying asset volatility and supports trading decisions. Target Price Calculation Enter the option price and volatility to back out the underlying asset's implied price. Ideal for scenario analysis and strategy development. Supported Option Types European Call Options European Put Options Clear Results Display Displays option theoretical price and key Greeks (Delta, Gamma, Theta, Vega, Rho) for in-depth analysis. Why Choose Option Pricing Assistant Professional & Accurate - Built on the standard Black-Scholes model for reliable results Three Calculation Modes - Pricing / Implied Volatility / Target Price – all in one app Simple & Intuitive - Clean interface. Just enter numbers and get instant answers Offline & Private - All calculations happen on your device. No internet required Learning Aid - Perfect for finance students and CFA, FRM exam candidates Perfect For Option traders and risk managers Finance students and CFA, FRM candidates Quantitative analysts and derivatives professionals Individual investors interested in option pricing Download Option Pricing Assistant Make option pricing simple. Download now and evaluate every option trade with confidence. Subscription Plans & Auto-Renewal Info Flexible subscription plans to fit every need: 1 Month – Ideal for short-term users 1 Year – Best value for committed users Lifetime – One-time purchase, forever access Auto-Renewal Details: Payment will be charged to your iTunes Account at confirmation of purchase Subscriptions auto-renew within 24 hours before the current period ends (except Lifetime) Renewal charges will be processed within 24 hours before the end of the current period Manage subscriptions or turn off auto-renewal anytime via your Apple ID Account Settings Lifetime Membership Perks: Pay once, unlock all features forever—no renewals, no hassle. Manage Subscriptions: Settings > [Your Name] > Subscriptions Privacy Policy: https://docs.qq.com/doc/DREt1SXJkbG9JYUFT Terms of Use (EULA): https://docs.qq.com/doc/DREdKR2ZwYUJaa1hr Apple Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Contact Us: hxx_shdt@126.com
Screenshots
Verdict
The clearest difference is price: 炼刀机器人 at Free against Option Pricing Assistant's $0.99. 炼刀机器人 also leads on in-app purchases (none vs 3) and iOS requirement (13.0 vs 17.6). On ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
炼刀机器人 is free to download; Option Pricing Assistant costs $0.99 up front. Option Pricing Assistant sells 3 in-app purchases, starting at $9.99 per month. 炼刀机器人 asks for nothing beyond the download.
| Parameter | 炼刀机器人 | Option Pricing Assistant |
|---|---|---|
| Price | Free — better | $0.99 |
| Update frequency | Every 2 weeks | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 28 MB | 5 MB |
| Age rating | 9+ | 4+ |
| Developer | Docking Technology Co., Ltd. | 乐祥 胡 |
In-app purchases
炼刀机器人
No in-app purchases
Option Pricing Assistant
- Option Pricing Assistant Pro-30days$9.991 Month
- Option Pricing Assistant Pro-360day$19.991 Year
- Option Pricing Assistant lifetime$49.99









