Comparison

SizeRight vs TradeLock

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

Head to head
About

SizeRight

Features
Read full description

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.

About

TradeLock

This app helps traders enforce their trading rules by locking access to trading applications during set times or after specific loss thresholds are met. It aims to prevent impulsive decisions and maintain trading discipline, especially during prop firm challenges.

Highlights
  • Session window locking
  • App blocking for trading platforms
  • Daily loss limit enforcement
  • Trade count limits
  • Discipline streak tracking
  • Trading journal and notes
  • Calendar of trading days
Read full description

TradeLock enforces your trading rules when you can't. You already have rules. A daily loss limit. A maximum number of trades. A session that ends at a set time. You wrote them for a reason, and on the days you follow them, they work. The problem is the days you don't. Two losses in and the rule says stop. You take a third to get it back. Your daily loss limit is 2% and you're at 6%, because the last one was going to work. The plan says three trades and you've taken eleven. It's 11pm, your session ended seven hours ago, and you're still at the screen. None of that is an analysis failure. Every one of those trades was taken by someone who knew the rule and broke it anyway, in the moment, with the account open in front of them. A rule you can talk yourself out of isn't protecting anything. TradeLock makes it real. HOW IT WORKS Set your trading window. Choose which apps get locked outside it — MT5, TradingView, cTrader, prop firm dashboards. When the window closes, they close with it. Once a lock is active, it cannot be argued with. There is no override and no five more minutes. The version of you that set the rule was calmer than the version trying to break it, and TradeLock takes the calmer one's side. An emergency release exists. It takes an hour, and it costs your streak. THE RULES IT HOLDS Session limits. Your trading day ends when you said it would, not when you run out of impulse. Trade counts. If you set a maximum and consistently exceed it, close the window at the number instead of arguing with yourself at the eighth. Daily loss limits. The rule that exists precisely because you can't be trusted to enforce it in drawdown. Set the window in advance and it holds without you. The stop after a bad session. A loss that would have been survivable at 4pm becomes an account at midnight. Locking the window keeps it survivable. WHAT'S INSIDE Session locks. Block your trading apps outside your chosen window — scheduled the night before, or on demand when you're done for the day. Discipline streak. Consecutive days you clocked out and held. Resets when you break it. Life account. Hours logged off the charts during your trading window. Deposits only. It never drains. Journal. Trade tracking and session notes, so you can see which rules you break, when, and after what. Rules only improve when you can see them failing. Calendar. A record of the days you held and the days you didn't. BUILT FOR TRADERS, NOT FOR PROCRASTINATORS This isn't a general-purpose app blocker. Every screen assumes you trade. The session window, the app list, the language — all of it is built for the specific psychology of the trading screen. Particularly useful mid prop-firm challenge, where the failure mode is exact: one bad session ends the account. Not a bad month. One session. WHO IT'S FOR Traders who have rules and break them. Three months to three years in. You know your setup. You have a plan written down somewhere. And you have watched yourself ignore it more than once. If you're looking for signals, strategy, or an edge, this isn't that. TradeLock doesn't ask you for discipline. It supplies it. PRIVACY TradeLock uses Apple's Screen Time (Family Controls) framework to block apps on your device. App usage data stays on your device and is never transmitted to us or anyone else. Terms of Use: https://tradeily.com/terms Privacy Policy: https://tradeily.com/privacy

Screenshots

SizeRight4 screens
TradeLock4 screens

Verdict

The call

The clearest difference is in-app purchases: SizeRight at none against TradeLock's 9. SizeRight also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.0). TradeLock's advantage is ads (none vs shown) and update cadence (every 6 days vs every 3 weeks). On price 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. TradeLock sells 9 in-app purchases, starting at $12.99 per month. SizeRight asks for nothing beyond the download.

UpkeepUpdate frequency

SizeRight ships an update every 3 weeks, TradeLock every 6 days. The most recent releases landed on October 17, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 4 level
SizeRight versus TradeLock: the parameters behind the verdict, then further details
ParameterSizeRightTradeLock
PriceFreeFree
Rating—5.0 (3 ratings) — better
Number of ratings—3 — better
Update frequencyEvery 3 weeksEvery 6 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better17.0
Further details — not scored
Size26 MB24 MB
Age rating17+4+
DeveloperAlexander BacsaTimothy Smart

In-app purchases

None

SizeRight

No in-app purchases

9 purchases

TradeLock

Subscriptions9
  • TradeLock Journal Monthly7 Days trial$12.991 Month
  • TradeLock Protect Monthly7 Days trial$29.991 Month
  • TradeLock Desk Monthly7 Days trial$49.991 Month
Show 6 more
  • TradeLock Monthly7 Days trial$49.991 Month
  • Journal Annual7 Days trial$99.991 Year
  • TradeLock Journal Annual7 Days trial$99.991 Month
  • TradeLock Protect Annual7 Days trial$249.991 Year
  • TradeLock Annual7 Days trial$349.991 Year
  • TradeLock Desk Annual7 Days trial$349.991 Year

Questions

Is SizeRight free?
SizeRight is free to download, with no in-app purchases.
Is TradeLock free?
TradeLock is free to download, with in-app purchases available.
Do SizeRight or TradeLock have ads?
SizeRight shows ads; TradeLock does not.
Which is updated more often, SizeRight or TradeLock?
SizeRight ships an update every 3 weeks, and TradeLock every 6 days. Most recently, SizeRight was updated on October 17, 2026 and TradeLock on October 24, 2026.

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