Position Size Calculator vs Signal Sizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Position Size Calculator
This app provides quick and accurate lot size calculations for various trading instruments directly on your mobile device. It supports Forex, Metals, Commodities, Indices, and Crypto, with a customizable instrument library and support for all major account currencies.
- Accurate lot size calculations
- Supports Forex, Metals, Commodities, Indices, Crypto
- Customizable contract size, tick size, tick value
- Built-in instrument library
- Works with all major account currencies
- Fast and minimal interface
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Stop fumbling with web calculators while trading. Grid puts accurate lot size calculations right on your phone. Size your positions correctly in seconds. # Features • Supports Forex, Metals, Commodities, Indices, and Crypto • Customize contract size, tick size, and tick value • Built-in instrument library with broker-specific inputs • Works with all major account currencies • Fast and minimal interface designed for clarity and efficiency # Pricing Grid is premium and ad-free. A subscription is required to use the app. We offer a 7-day free trial so you can test all features. • Annual Plan - $19.99 / year • Weekly Plan - $2.99 / week • Lifetime Plan - $99.99 once Prices shown are for US customers and may vary by region. Payment charged to Apple Account at confirmation of purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Manage subscriptions in Account Settings. Terms of Use: https://www.stadelbauer.dev/terms-of-use Privacy Policy: https://www.stadelbauer.dev/privacy-policy
Signal Sizer
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Signal Sizer instantly calculates the exact position size for your forex and CFD trades — no more manual math, no more guesswork. Paste any trading signal or enter your setup manually, and Signal Sizer parses the entry, stop loss, and take-profit levels automatically. Set your risk amount and get instant, accurate lot size calculations based on live market rates. KEY FEATURES • Paste-to-calculate: drop in any signal format and get instant results • Manual entry mode for full control • Live market rates for accurate pip value conversion • Risk-based position sizing — set your dollar risk, get your lot size • Support for multiple take-profit levels, with weighted or equal split • Calculation history to track your past setups • Available in 15 languages Signal Sizer Premium unlocks unlimited calculations and unlimited live rate lookups for traders who need speed and reliability on every trade. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ DISCLAIMER Signal Sizer provides mathematical estimates only. Results are not financial advice. You are solely responsible for your trading decisions.
Screenshots
Verdict
The clearest difference is update cadence: Signal Sizer at monthly against Position Size Calculator's every 3 months. Signal Sizer also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.6). On price, ads and in-app purchases 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
Both are free to download. Position Size Calculator sells 5 in-app purchases, starting at $2.99 per 7 days and Signal Sizer sells 1 in-app purchase, starting at $2.49 per 7 days. Whichever you choose, the download price is not the number that matters.
Position Size Calculator ships an update every 3 months, Signal Sizer monthly. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.
| Parameter | Position Size Calculator | Signal Sizer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Christoph Stadelbauer | Jean Pierre Djidiack FAYE |
In-app purchases
Position Size Calculator
- Grid Premium$2.997 Days
- Grid Premium3 Days trial$4.997 Days
- Grid Premium7 Days trial$19.991 Year
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- Grid Premium3 Days trial$29.991 Year
- Grid Premium Lifetime$89.99
Signal Sizer
- Signal Sizer Premium$2.497 Days
Questions
Is Position Size Calculator free?
Is Signal Sizer free?
Do Position Size Calculator or Signal Sizer have ads?
Which is updated more often, Position Size Calculator or Signal Sizer?
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