Comparison

Forex Size Calculator vs FX LotSize

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

Head to head
About

Forex Size Calculator

This app helps Forex traders calculate their correct position size and risk percentage. It provides an instant overview of your position size to help you set your stop-loss effectively. Supports a wide range of currency pairs and XAUUSD.

Highlights
  • Calculate correct position size
  • Calculate risk in percentage
  • Instant position size overview
  • Stop-loss setting assistance
  • Supports numerous currency pairs
  • Includes XAUUSD
Features
Read full description

Proper position sizing is the key to managing risk in trading Forex. Posica helps you to calculate quickly * Calculate your correct position size * Calculate your risk in % After the calculation of your risk, you will have an instant overview of your position size and in this way, you can set your stop-loss higher or lower. These are the currencies: EURUSD USDJPY GBPUSD USDCHF USDCAD AUDUSD NZDUSD EURGBP EURAUD EURNZD EURCAD EURCHF EURJPY EURPLN GBPJPY AUDJPY NZDJPY CADJPY CHFJPY GBPAUD GBPNZD GBPCAD GBPCHF AUDNZD AUDCAD AUDCHF NZDCAD NZDCHF CADCHF XAUUSD

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

Forex Size Calculator4 screens
FX LotSize4 screens

Verdict

The call

The clearest difference is update cadence: FX LotSize at every 3 days against Forex Size Calculator's every 28 months. Forex Size Calculator's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Forex 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

Forex Size Calculator ships an update every 28 months, FX LotSize every 3 days. The most recent releases landed on October 10, 2026 and October 22, 2026 respectively.

Scorecard3 real differences ยท 5 level
Forex Size Calculator versus FX LotSize: the parameters behind the verdict, then further details
ParameterForex Size CalculatorFX LotSize
PriceFreeFree
Positive reviews0.0% of reviewsโ€”
Update frequencyEvery 28 monthsEvery 3 days โ€” better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesโ€”
DevicesiPhone, iPad, iPod โ€” betteriPhone
Requires iOS15.0 โ€” better18.0
Further details โ€” not scored
Size10 MB8 MB
Age rating4+4+
DeveloperDoga Bayramyuki kawahito

In-app purchases

1 purchases

Forex Size Calculator

One-time1
  • Premium 20+ Currencies$19.99
1 purchases

FX LotSize

One-time1
  • All Currency Pair$5.99

Questions

Is Forex Size Calculator free?
Forex 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 Forex Size Calculator or FX LotSize have ads?
Neither Forex Size Calculator nor FX LotSize shows ads.
Which is updated more often, Forex Size Calculator or FX LotSize?
Forex Size Calculator ships an update every 28 months, and FX LotSize every 3 days. Most recently, Forex Size Calculator was updated on October 10, 2026 and FX LotSize on October 22, 2026.

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