Comparison

Option Calculation vs 外汇价格

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Option Calculation

Features
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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.

About

外汇价格

Features
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一款专注外汇牌价的轻量应用,帮助您随时查看多币种的现汇买入价与现汇卖出价。无论您是出差换汇、留学购汇,还是关注汇率走势,都能在列表中快速找到欧元、美元、英镑、港币、日元等常用货币的最新牌价,数据清晰、更新及时,让换汇决策更有依据。 应用支持双向换算:点击任意货币行即可进入换算界面,输入金额即可实时得出兑换结果。支持「外币→人民币」换汇(按现汇买入价)与「人民币→外币」购汇(按现汇卖出价)两种方向,满足您持有外币或人民币时的不同场景。界面简洁,表头与数据一目了然,支持下拉刷新获取最新牌价并显示更新时间,网络异常时提示连接状态并支持重试。无需注册、无广告打扰,打开即用。 适合经常出境、留学、海淘或关注汇率的用户。将 Exchange 放在手机里,需要时随时打开,查看牌价、计算兑换金额,为换汇和理财提供参考。我们持续优化数据与体验,致力成为您身边简单好用的外汇牌价工具。

Screenshots

Option Calculation4 screens
外汇价格2 screens

Verdict

The call

The clearest difference is iOS requirement: Option Calculation at 16 against 外汇价格's 18.2. On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 5 level
Option Calculation versus 外汇价格: the parameters behind the verdict, then further details
ParameterOption Calculation外汇价格
PriceFreeFree
Update frequencyEvery 2 months—
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS16 — better18.2
Further details — not scored
Size5 MB2 MB
Age rating4+4+
Developerjiang jin fu秀杰 黄

In-app purchases

None

Option Calculation

No in-app purchases

None

外汇价格

No in-app purchases

Questions

Is Option Calculation free?
Option Calculation is free to download, with no in-app purchases.
Is 外汇价格 free?
外汇价格 is free to download, with no in-app purchases.
Do Option Calculation or 外汇价格 have ads?
Neither Option Calculation nor 外汇价格 shows ads.

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