Comparison

OptionPosition+ vs FX Diff Lt

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

Head to head
About

OptionPosition+

Analyze stock and option positions with this financial tool. Explore hedging strategies, create diversified portfolios, and visualize potential gains, losses, and Greeks. Understand price and volatility impacts on your investments.

Highlights
  • Stock and option price analysis
  • Portfolio creation and management
  • Graphical illustration of option strategies
  • Black-Scholes equation for implied volatility
  • Gain/Loss, Delta, Vega, Theta, Gamma visualization
  • Probability of future stock prices and gains/losses
  • Volatility Smile display
Features
Read full description

OptionPosition+ Version 4.1 OptionPosition+ is a financial analysis App that estimates the value of a set of shares and put and call options for a particular stock. It allows the investor to explore various option hedging positions and create a portfolio that is sensitive to price and volatility fluctuations or that provides protection for various concerns. OptionPosition+ graphically illustrates the value of put protection, covered calls, call spreads, time spreads, delta neutral skew trades, iron condors, etc.. Further information is available at https://www.optionposition.com OptionPosition+ comes with an initial one month subscription period that provides access to data on most stocks listed on the NYSE and NASDAQ and certain indexes (i.e. NDX, NQX, XND). After this one month subscription period you may purchase an auto-renewing subscription through an In-App Purchase. (If you do not maintain a subscription you can only access stock and option data for AAPL.) • Auto-renewable subscription • 1 month ($2.99), 2 month ($4.99) and 3 month ($5.99) durations • Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration selected) unless auto-renew is turned off at least 24 hours before the end of the current period. • Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase. • Privacy policy and terms of use: https://sites.google.com/site/kramerkramersoftware/ OptionPosition+ Features: • delayed stock and option prices for all available strike dates and strike prices (delay varies from 0 to 20 minutes) • remembers 30 different portfolios each with 6 assets: ..........puts, calls, shares or child portfolios ......................child portfolios can have different underlying stock ......................child portfolios have correlated price ..........long, short any quantity ..........all listed strike dates ..........all listed strike prices ..........e-mail to anyone • Black-Scholes equation used to determine implied volatility and future value of put and call options • graphically displays Gain/Loss, Delta, Vega, Theta or Gamma as a function of stock price: ..........now (see black lines below) ..........at any future date up to the earliest strike date (see red lines below) ..........at assumed higher or lower volatilities (see green lines below) ..........with a changing price correlation to child portfolios included as an item/hedge • graphically displays the probability of future stock prices and the probability of future option portfolio Gains/Losses based on current put/call straddle prices • graphically displays the Volatility Smile for any expiration date • scales on the graph are continuously adjustable with one and two finger moves – easily zoom in or out • tap on the graph to show the X,Y value at a point and the value of the curves at that X value • diagnostics table shows all Greeks and lets you easily create a Delta neutral portfolio • 3 month US dollar LIBOR used for risk free interest rate • incorporates predicted dividend payments into the Black-Scholes calculations without making a ‘fixed dividend rate’ error in Delta Screen shots: For an explanation of these option positions, and more, see our website www.OptionPosition.com. Screen shots shown below (for both iPhone and iPad): 1) Gain/Loss for a Put Protection in AAPL 2) Gain/Loss graph for an Iron Condor in AAPL 3) Assets (iPad includes Diagnostics) for the Iron Condor in AAPL 4) Delta graph for the Iron Condor in AAPL 5) Probability of the value of the Gain/Loss for the Iron Condor in AAPL 6) Volatility Smile using data source A

About

FX Diff Lt

Analyze currency pair behavior with simple graphs, including cryptocurrencies like Bitcoin and Ethereum. Understand relative growth, dynamics, and moving averages to identify trends, reduce trading risk, and avoid mutually exclusive trades.

Highlights
  • Currency pair behavior analysis
  • Cryptocurrency support (BTC, ETH)
  • Relative growth graphs
  • Relative dynamics graphs
  • Moving average analysis
  • Trend identification
Features
Read full description

FX Diff - analyze the behavior of currency pairs using simple graphs. Includes cryptocurrencies! (Bitcoin, Ethereum) The graphs show relative growth, relative dynamics and moving average with different time horizons. Proper analysis of the behavior of currencies will let you: - reduce the risk when trading related currencies - avoid mutually exclusive trades - identify fundamental trends FX Diff is suitable for experienced FOREX traders and FOREX professionals.

Screenshots

OptionPosition+4 screens
FX Diff Lt4 screens

Verdict

The call

The clearest difference is review sentiment: OptionPosition+ at 84% against FX Diff Lt's 0%. OptionPosition+ also leads on update cadence (every 5 weeks vs every 7 months). FX Diff Lt's advantage is in-app purchases (none vs 3) and iOS requirement (8.1 vs 12.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. OptionPosition+ sells 3 in-app purchases, starting at $2.99 per month. FX Diff Lt asks for nothing beyond the download.

UpkeepUpdate frequency

OptionPosition+ ships an update every 5 weeks, FX Diff Lt every 7 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
OptionPosition+ versus FX Diff Lt: the parameters behind the verdict, then further details
ParameterOptionPosition+FX Diff Lt
PriceFreeFree
Rating4.0 (20 ratings) — better—
Positive reviews83.7% of reviews — better0.0% of reviews
Number of ratings20 — better—
Update frequencyEvery 5 weeks — betterEvery 7 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.08.1 — better
Further details — not scored
Size4 MB14 MB
Age rating4+4+
DeveloperPeter KramerStrelka Limited

Customer experience

OptionPosition+

All ratings20 ratings
Positive70.0%
Neutral15.0%
Negative15.0%
Written reviews49 reviews
Positive83.7%
Neutral8.2%
Negative8.2%

FX Diff Lt

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

3 purchases

OptionPosition+

Subscriptions3
  • full access to stock and option data$2.991 Month
  • full access to stock and option data$4.992 Months
  • full access to stock and option data$5.993 Months
None

FX Diff Lt

No in-app purchases

Questions

Is OptionPosition+ free?
OptionPosition+ is free to download, with in-app purchases available.
Is FX Diff Lt free?
FX Diff Lt is free to download, with no in-app purchases.
Do OptionPosition+ or FX Diff Lt have ads?
Neither OptionPosition+ nor FX Diff Lt shows ads.
Which is updated more often, OptionPosition+ or FX Diff Lt?
OptionPosition+ ships an update every 5 weeks, and FX Diff Lt every 7 months. Most recently, OptionPosition+ was updated on October 26, 2026 and FX Diff Lt on October 24, 2026.

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