Comparison

FX Position Size Calculator vs FX LotSize

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

Head to head
About

FX Position Size Calculator

This tool helps forex traders calculate the ideal trade size by factoring in currency pairs, risk tolerance, and stop-loss levels. It simplifies risk management for both new and experienced traders, enabling more informed trading decisions.

Highlights
  • Calculate position size based on risk percentage or fixed amount
  • Supports all major and cross currency pairs
  • Adjustable exchange rates for precise customization
  • Automatically saves last calculation
  • Share calculation results easily
  • Fully functional offline
Features
Read full description

The FX Position Size Calculator helps traders determine the optimal trade size based on selected currency pair, account risk (percentage or fixed amount), and stop-loss distance in pips. Designed for both beginner and professional forex traders, the calculator simplifies risk management and supports smarter trading decisions. The app supports all major forex pairs and crosses, requires only a few inputs, and provides flexible options to match your trading preferences. Simply enter your trade parameters and tap Calculate to instantly receive your recommended position size. Key Features • Supports all major and cross currency pairs • Calculates position size based on risk percentage or fixed amount • Automatically saves your last calculation for quick reuse • Adjustable exchange rates for precise customization • Easily share calculation results via chat, email, or social networks • Fully functional offline, no internet required We continuously improve the app to better support traders. If you have feature suggestions or feedback, feel free to contact us through the in-app support email. Trade smarter. Manage risk better.

About

FX LotSize

Features
Read full description

How to use the app Lot calculation tool You can calculate the appropriate lot when entering FX (holding a position). 1. Set the currency pair 2. Enter the margin (account balance) 3. Set the loss tolerance as a percentage of the margin 4. Finally, enter the stop loss 5. Tap the calculate button to display the appropriate lot. Profit and loss ratio tool 1. Set the profit lock pips (take profit) 2. Set the loss tolerance pips (stop loss) 3. Automatically display risk reward Settings Regarding the currency of 1 lot, please check the information of your trading company and set it. The default is set to 10,000 currency per lot. The loss tolerance (%) can be changed to the % set when the app is launched. The currency pair at launch can be changed to the currency pair set when the app is launched. The currency pair list can be listed as you like. The only currency pairs available in the free version are USD/JPY and EUR/USD/GBP/JPY. If you want to calculate lots for other currency pairs, you will need to upgrade. After upgrading, you will be able to use all currency pairs without any charge.

Screenshots

FX Position Size Calculator4 screens
FX LotSize4 screens

Verdict

The call

The clearest difference is ads: FX LotSize at none against FX Position Size Calculator's shown. FX LotSize also leads on update cadence (every 3 days vs monthly). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. FX Position Size Calculator sells 1 one-off in-app purchase and FX LotSize sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

FX Position Size Calculator ships an update monthly, FX LotSize every 3 days. The most recent releases landed on September 23, 2026 and September 18, 2026 respectively.

Scorecard2 real differences · 8 level
FX Position Size Calculator versus FX LotSize: the parameters behind the verdict, then further details
ParameterFX Position Size CalculatorFX LotSize
PriceFreeFree
Rating4.7 (227 ratings) — better—
Positive reviews37.5% of reviews—
Number of ratings227 — better—
Update frequencyMonthlyEvery 3 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.6 — better18.0
Further details — not scored
Size22 MB8 MB
Age rating4+4+
DeveloperDo Triyuki kawahito

In-app purchases

1 purchases

FX Position Size Calculator

One-time1
  • Remove Ads$9.99
1 purchases

FX LotSize

One-time1
  • All Currency Pair$5.99

Questions

Is FX Position Size Calculator free?
FX Position Size Calculator is free to download, with in-app purchases available.
Is FX LotSize free?
FX LotSize is free to download, with in-app purchases available.
Do FX Position Size Calculator or FX LotSize have ads?
FX Position Size Calculator shows ads; FX LotSize does not.
Which is updated more often, FX Position Size Calculator or FX LotSize?
FX Position Size Calculator ships an update monthly, and FX LotSize every 3 days. Most recently, FX Position Size Calculator was updated on September 23, 2026 and FX LotSize on September 18, 2026.

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