Comparison

FX Option Lt vs OptionStrat

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

Head to head
About

FX Option Lt

This application efficiently prices FOREX options, calculating premiums and risk parameters for call and put options. It provides detailed risk calculations, stress tables, and allows for saving and emailing results.

Highlights
  • Calculate risk parameters (delta, vega, theta, gamma)
  • Builds option stress tables
  • Email or print detailed calculations
  • Save calculation results and favorites
  • Supports 21 languages
Features
Read full description

FX Option - is a new calculator for FOREX options. The app has been specifically developed to efficiently price the options. It allows quick and easy calculation of the premium and risk parameters for various types of call and put options. Features: - calculation of risk parameters: delta, vega, theta, gamma, etc - builds a stress-table for the option - sending of detailed calculation and results table to your email or printer - on-the-fly saving of calculation results. Favorites support The app is available in 21 languages.

About

OptionStrat

Visualize and analyze options trades with a profit calculator and strategy builder. Discover institutional trades with real-time unusual options flow. Optimize strategies for maximum returns or profit chance.

Highlights
  • Options profit calculator
  • Strategy visualizer
  • Strategy optimizer
  • Unusual options flow tracker
  • Complex strategy detection
  • In-app tutorials
Features
Currently charting
Read full description

OPTIONS PROFIT CALCULATOR: Find and edit option strategies in real-time with our options profit calculator to gain a visual understanding of your trades. OptionStrat's strategy visualizer is used to find the potential profit and loss at various prices, as well as show how your trade is affected by implied volatility, time decay, and other factors. The strategy visualizer makes it easy to scroll through various strikes and expirations to build an options strategy. Nearly any strategy can be created, including strategies with underlying stocks like covered calls, or multiple expirations such as double diagonals. Over 50 strategy templates are available to choose from, each with a handy setup chart and description. STRATEGY OPTIMIZER: Automatically calculate the best strategies given a target price and expiration date. The options optimizer will search through thousands of potential trades to find which strategies maximize returns or chance of profit (or somewhere in between). UNUSUAL OPTIONS FLOW: OptionStrat Flow scans the market to uncover large and unusual trades as they happen, giving you insight into trades by institutions and other smart money. Not only do we show large call or put purchases, but we detect if the transaction showed urgency or aggression from the buyer or seller to show you both sides of the market. We are the first to provide unusual options activity for complex strategy types. OptionStrat Flow detects spreads, condors, and other advanced strategies and categorizes them as bearish, bullish, neutral, or directional. Use the in-app tutorials to learn more about each tool in the OptionStrat toolkit! DISCLAIMER: Options involve a high degree of risk and are not suitable for all investors. OptionStrat is not a registered investment advisor. The calculations, information, and opinions in this app are for educational purposes only and do not constitute investment advice. Calculations are estimates and do not account for all market conditions and events. TERMS OF USE: https://optionstrat.com/terms

Screenshots

FX Option Lt3 screens
OptionStrat4 screens

Verdict

The call

The clearest difference is in-app purchases: FX Option Lt at none against OptionStrat's 10. FX Option Lt also leads on iOS requirement (8.1 vs 14.0). OptionStrat's advantage is update cadence (every 10 days vs every 6 months) and ratings volume (1.9K vs 1). On price, rating, 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. OptionStrat sells 10 in-app purchases, starting at $19.99 per month. FX Option Lt asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

FX Option Lt holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: OptionStrat has 1.9K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

FX Option Lt ships an update every 6 months, OptionStrat every 10 days. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 5 level
FX Option Lt versus OptionStrat: the parameters behind the verdict, then further details
ParameterFX Option LtOptionStrat
PriceFreeFree
Rating5.0 (1 ratings) — better4.8 (1.9K ratings)
Positive reviews—79.8% of reviews
Number of ratings11.9K — better
Update frequencyEvery 6 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank—#92 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.1 — better14.0
Further details — not scored
Size15 MB25 MB
Age rating4+4+
DeveloperStrelka LimitedOptionStrat LLC

Customer experience

FX Option Lt

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

OptionStrat

All ratings1,926 ratings
Positive96.3%
Neutral1.6%
Negative2.1%
Written reviews89 reviews
Positive79.8%
Neutral11.2%
Negative9.0%

Bugs and requests

FX Option Lt

Not enough reviews yet to summarise bugs or requests.

OptionStrat

Reported bugs

4 issues
  • Freezing and Crashing Issues
  • Incorrect Data Calculations
  • Disappearing UI Elements
  • Incompatibility with Certain Device Configurations

Requested features

6 requests
  • Allow Modifying Saved Trades
  • Provide Real-Time Options Quotes
  • Implement International Stock Support
  • Increase Maximum Number of Open Windows
  • Add Time Stamps to Active Ticker List
Show 1 more
  • Implement Spanish Translation

In-app purchases

None

FX Option Lt

No in-app purchases

10 purchases

OptionStrat

Subscriptions10
  • Live Option Tools7 Days trial$19.991 Month
  • Tools Monthly7 Days trial$29.991 Month
  • Live Option Tools7 Days trial$39.991 Month
Show 7 more
  • Live Options Flow7 Days trial$59.991 Month
  • Live Options Flow7 Days trial$89.991 Month
  • Live Options Flow7 Days trial$99.991 Month
  • Live Option Tools7 Days trial$199.991 Year
  • Live Option Tools$299.991 Year
  • Live Options Flow7 Days trial$599.991 Year
  • Live Options Flow7 Days trial$999.991 Year

Questions

Is FX Option Lt free?
FX Option Lt is free to download, with no in-app purchases.
Is OptionStrat free?
OptionStrat is free to download, with in-app purchases available.
Which has better reviews, FX Option Lt or OptionStrat?
FX Option Lt is rated higher. FX Option Lt averages 5.0 out of 5 from 1 ratings, while OptionStrat averages 4.8 from 1.9K ratings.
Do FX Option Lt or OptionStrat have ads?
Neither FX Option Lt nor OptionStrat shows ads.
Which is updated more often, FX Option Lt or OptionStrat?
FX Option Lt ships an update every 6 months, and OptionStrat every 10 days. Most recently, FX Option Lt was updated on November 2, 2026 and OptionStrat on November 3, 2026.

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