Whale Tools vs SizeRight
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Whale Tools
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Whale Tools is a focused calculator suite for trading decisions across crypto, stocks, futures, and any market you trade. Plan entries, exits, position size, liquidation risk, average-down scenarios, fees, and funding costs before you place a trade. Keep your assumptions visible so every decision starts from numbers, not impulse. What you can do: - Calculate position size from risk and stop loss - Estimate liquidation prices before opening a leveraged position - Preview P&L, break-even, targets, and exits - Simulate average-down scenarios in real time - Estimate fees and funding costs Whale Tools does not execute trades, provide financial services, or offer investment advice. It is a calculation and planning tool.
SizeRight
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SizeRight is a focused futures position-size calculator for active traders. Enter your account size, risk percentage, and stop distance in ticks to estimate the maximum contract count before you place a trade. Use SizeRight to: - Calculate futures position size from account size, risk %, and stop distance - See estimated contract count, dollar risk, and stop cost per contract - View stop distance in points alongside contract details - Work with free micro futures including MNQ, MES, M2K, MGC, MCL, MYM, MBT, and SIL - Unlock 20 additional full-size and specialist contracts with Pro - Use exchange-based specs for CME, CBOT, COMEX, and NYMEX markets - Keep calculations on-device with no login required Built for futures day traders, micro futures traders, funded-account traders, and anyone who wants to plan risk before entering a trade. SizeRight is a reference tool only. It does not place trades or connect to a broker. Verify current contract specifications, margin requirements, fees, slippage, and exchange rules with your broker before trading.
Screenshots
Verdict
The clearest difference is update cadence: SizeRight at every 3 weeks against Whale Tools's every 7 months. SizeRight also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Whale Tools ships an update every 7 months, SizeRight every 3 weeks. The most recent releases landed on August 22, 2026 and September 20, 2026 respectively.
| Parameter | Whale Tools | SizeRight |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 7 months | Every 3 weeks โ better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod โ better |
| Requires iOS | 17.0 | 15.1 โ better |
| Further details โ not scored | ||
| Size | 50 MB | 26 MB |
| Age rating | 4+ | 17+ |
| Developer | Jun Kim | Alexander Bacsa |
In-app purchases
Whale Tools
No in-app purchases
SizeRight
No in-app purchases
Questions
Is Whale Tools free?
Is SizeRight free?
Do Whale Tools or SizeRight have ads?
Which is updated more often, Whale Tools or SizeRight?
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