SignalShield and Meridian both address discipline under pressure, but their platform fit and intervention authority differ sharply. SignalShield stays outside the brokerage path; Meridian Guard is designed to act on entry flow in supported futures platforms.
Neither workflow is automatically the right choice for every trader. Platform fit, intervention style, access, and how much authority you want software to have matter more than feature count.
Permanent Free tier at $0. Core starts at $15.99/month; Pro is $25.99/month and Elite is $59.99/month.
Meridian Core is free without a card or trial countdown. Guard is $29.99/month. On NinjaTrader 8, the first 7 days of a free Core license include Guard.
Built around TradingView webhook alerts, with optional Discord status delivery and no brokerage connection.
NinjaTrader 8 add-on is available now. Standalone Windows apps for Tradovate and Ironbeam are downloadable in early access; supported enforcement varies by platform.
Cooldowns and locks are accountability states. SignalShield cannot block, cancel, route, or place brokerage orders.
Guard advertises entry-order cancellation, trading pauses, broker disconnect on NinjaTrader 8, standing hard limits, and Strict Lock. Only Tradovate demo/eval accounts are described as supporting the broker-level lock.
Connects alerts, execution journaling, emotional context, rule adherence, and Shield Score behavior review.
Combines a Psychological Stability Index, behavioral signals, session journal, history, and Intel analytics.
The core workflow does not require a brokerage connection. SignalShield does not place, modify, cancel, or route trades.
Meridian says the product is local-first and credentials are not transmitted to its servers; its early-access standalone apps sign in locally. Guard actions and bypass limits depend on platform and account type.
Cooldowns and locks are accountability states. SignalShield cannot block, cancel, route, or place brokerage orders.
Guard advertises entry-order cancellation, trading pauses, broker disconnect on NinjaTrader 8, standing hard limits, and Strict Lock. Only Tradovate demo/eval accounts are described as supporting the broker-level lock.
The official Meridian pricing, Guard, and platform pages were reviewed on October 8, 2026. Offers and supported enforcement may change; check them before subscribing.
Start free if you want to test the manual discipline loop before adding connected automation.
