Option Calculation vs KLineAnalyzer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Option Calculation
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This is an effective and practical app for calculation of European-style option! Based on BSM Model: • support to calculate option price, implied volatility, put-call parity. • When you calculate option price/implied volatility, the greeks are calculated and show simultaneously. • Support to show option price/delta/gamma for 2D/3D interactively! • Overlay contracts' curve with different days/implied volatility in same graph. For example, to calculate option price: input underlying price, strike price, days to expire, riskless rate, implied volatility, tap the blue button in the bottom, the option price will be calculated and show immediately! Then tap the button in the top right, show function line of delta/gamma and underlying price in theory. Slide to change the underling price, see how price/delta/gamma changes.
KLineAnalyzer
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K 线图趋势分析（图像识别） • 上传任意 K 线图即可自动分析图表结构 • 根据常见形态特征给出上涨或下跌的参考判断 • 支持多类烛形组合识别 • 结果直观、快速，适合作为辅助分析工具 K 线形态学习 • 收录多种常用 K 线形态 • 图示 + 文本讲解帮助理解 • 适合新手和有经验的用户查阅与复习 • 可随时查看经典反转/延续形态的含义与逻辑 技术指标知识库 • 介绍常见技术指标及计算逻辑 • 包含：MA、MACD、RSI、KDJ 等 • 帮助用户建立更系统化的技术分析基础 简洁直观的界面设计 • 干净清爽的界面，重点突出图表内容 • 所有功能一步到位，易于理解和操作 • 本地运行，无需账户，无需联网即可使用主要功能
Screenshots
Verdict
The clearest difference is ads: Option Calculation at none against KLineAnalyzer's shown. KLineAnalyzer's advantage is update cadence (fortnightly vs every 2 months). On price, in-app purchases, device support and iOS requirement 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Option Calculation ships an update every 2 months, KLineAnalyzer fortnightly. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.
| Parameter | Option Calculation | KLineAnalyzer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 16 | 15.6 — better |
| Further details — not scored | ||
| Size | 5 MB | 12 MB |
| Age rating | 4+ | 17+ |
| Developer | Jinfu Jiang | I-XPERT TECHNOLOGY INC. |
In-app purchases
Option Calculation
No in-app purchases
KLineAnalyzer
No in-app purchases
Questions
Is Option Calculation free?
Is KLineAnalyzer free?
Do Option Calculation or KLineAnalyzer have ads?
Which is updated more often, Option Calculation or KLineAnalyzer?
Other comparisons
