
Category: Platforms | Date: 2026-11-07
Yes. You place a trade on one account (the leader) and a trade copier places the same order on your other accounts (the followers), sized however you set it for each one. Traders use it to run several prop firm evaluation or funded accounts from one chart, or to mirror a personal account onto others.
There are two ways to do it. An <strong>NT8 add-on</strong> runs inside NinjaTrader 8 on your Windows PC and copies between the accounts connected there. A <strong>cloud copier</strong> connects to the broker account behind NinjaTrader (usually Tradovate or Rithmic) and copies from the broker side, so it keeps working when NinjaTrader is closed. Both work; they suit different people, and this guide covers both.
Prices, trials and platform details below were re-read from each company’s own website on 2026-11-07. Latency figures are each vendor’s own claim, not our measurement. Several prices are shown by the vendors as sale prices, so check their sites before you buy.
| Signal Trade App | Replikanto | Duplicate Account Actions (Affordable Indicators) | TradeSyncer | TradeCopia | |
|---|---|---|---|---|---|
| Type | Cloud copier | NT8 add-on | NT8 add-on | Cloud copier | Desktop app (Pro) or cloud (Pro+ Lite, Pro+) |
| How it reaches NinjaTrader accounts | Through the Tradovate or Rithmic account behind them | Inside NinjaTrader 8 | Inside NinjaTrader 8 | Through the Tradovate or Rithmic account behind them | Through broker APIs, no NinjaTrader plugin |
| NinjaTrader must stay open to copy | No | Yes | Yes | Not stated | Yes, when NinjaTrader is the leader (vendor FAQ) |
| Price | $29/mo flat, or $199/year | $299 lifetime (1 machine), $399 lifetime (2 machines), or $249 / $299 per year | $195 one-time (1 PC), $315 (2 PCs) | $49 / $99 / $149 per month | $49.99 / $79.99 / $149.99 per month |
| Account limits | Unlimited | No limit stated | No limit | 2 logins × 10 accounts on Basic, up to 120 accounts on Flex | Unlimited |
| Free trial | 5 days, card required | 7 days | 7 days | 7 days, card required | 7 days on Pro and Pro+ Lite |
| Runs on | Any browser | Windows (NinjaTrader 8.1.6+) | Windows (NinjaTrader 8) | Any browser | Windows/Mac app or browser |
| Latency claim | Under 50ms to Tradovate, under 5ms to Rithmic | None published | None published | Executions averaging under 50ms (NinjaTrader page) | No figure published |
Signal Trade App is a cloud copier: nothing to install and no VPS to manage. It is not an NT8 add-on. It connects to your Tradovate and Rithmic accounts directly, so any trade you place in NinjaTrader on a Tradovate- or Rithmic-connected account is picked up from the broker and copied to your followers. NinjaTrader does not need to stay open for copying to keep working, and the leader and followers can be on different brokers: a Rithmic leader can copy to Tradovate followers and the other way round, in one copy group.
Each follower has its own size ratio. Followers enter when the leader’s entry fills and exit when its stop or target fills. Every account gets drawdown tracking with alerts, session and manual lockouts, and closed trades land in a built-in journal. You can also send orders from TradingView webhooks or the REST API. Our own figures are under 50ms to Tradovate and under 5ms to Rithmic.
Pricing is one plan for unlimited accounts: $29/month, or $199/year, after a 5-day trial that requires a card. A $599 one-time self-hosted licence is also available. There is no free plan.
Where it is not the right fit: it only works with NinjaTrader accounts that connect through Tradovate or Rithmic. It does not connect to Topstep, TopstepX or ProjectX, and it does not support Sierra Chart, ATAS or Quantower. It also does not add buttons or panels inside NinjaTrader; you manage copying in the browser.
Replikanto, from FlowBots, is a long-running NT8 add-on. It copies Chart Trader, SuperDOM, ATM strategy, OCO bracket and NinjaScript strategy orders, and offers seven sizing methods, from exact quantity and ratio to net-liquidation and available-cash based sizing. It can copy between accounts on one computer, across your local network, or over the internet between computers using a Replikanto ID. Its Follower Guard can disarm or flatten a follower that falls out of line, and Cross Order can map minis to micros.
Licences are one-time or yearly: $299 lifetime for one machine or $399 for two, or $249 / $299 for one year (listed as sale prices against $399 / $499 and $349 / $399). Copying on one computer or a local network is free; copying over the internet uses Submit credits, one per order sent to each remote computer, with credit packs from $15. It needs NinjaTrader 8.1.6 or later on Windows, and the 7-day trial covers two machines with 20 credits.
Duplicate Account Actions is the NT8 trade copier from Affordable Indicators. It runs in NinjaTrader Desktop on Windows, and NinjaTrader must stay open with every account connected while you trade. It has two modes: Executions Mode sends market orders to followers, and Orders Mode mirrors all order types and can attach an ATM strategy per follower. Followers can be scaled up or down, set to micro or mini contracts, or run in Fade Mode (the opposite side), and rejected orders can be resubmitted automatically. Trades can start in NinjaTrader, TradingView, Tradovate or Rithmic, as long as the account is connected to NinjaTrader Desktop.
It is a one-time licence: $195 for one PC (shown as 30% off $295) or $315 for two PCs, with free lifetime upgrades, a 7-day trial and a 30-day money-back guarantee. One limit to know: NinjaTrader Desktop runs one Rithmic login at a time, and connecting several Rithmic prop firm logins needs the separately sold Unlimited Prop Firm Connections add-on.
TradeSyncer is a cloud copier with a wide platform list: TradingView, NinjaTrader, Tradovate, Rithmic, dxFeed, Sierra Chart, ATAS, Quantower, ProjectX and Hyperprop. For NinjaTrader it connects to the Tradovate or Rithmic account behind it, and its NinjaTrader page claims executions averaging under 50ms. It prices by broker logins: Basic is $49/month for 2 logins with 10 accounts each, Pro is $99/month for 4 logins with 20 each, and Flex is $149/month with unlimited logins and 120 accounts. There is a 7-day trial with a card up front. See TradeSyncer pricing explained.
TradeCopia connects to broker APIs rather than installing a NinjaTrader plugin, and supports Tradovate, NinjaTrader, Rithmic, TopstepX and TradingView. It comes three ways: Pro, a $49.99/month desktop app for Windows or Mac; Pro+ Lite, $79.99/month in the browser on managed hosting; and Pro+, $149.99/month on a dedicated VPS. Every tier has unlimited accounts, and its Position Reconciler closes follower positions that did not come from the leader. Pro and Pro+ Lite have a 7-day trial; Pro+ does not. See TradeCopia pricing explained.
An NT8 add-on lives inside NinjaTrader. That is its strength: copying is controlled from the same platform you trade in, it understands NinjaTrader features like ATM strategies and NinjaScript strategies, and the two add-ons here are sold as one-time licences. The trade-off is that NinjaTrader, and the Windows PC or VPS it runs on, must stay on and connected for copying to work. If NinjaTrader freezes, updates or loses its connection, copying stops with it.
A cloud copier connects to the broker account behind NinjaTrader and runs on the vendor’s servers. Copying continues when your PC is off, you can manage it from any browser, and it can copy across brokers, for example a Rithmic account you trade in NinjaTrader leading Tradovate followers. The trade-off is a monthly subscription, and it only sees the broker connections it supports.
Not among the options compared here. None has a permanently free plan, and that includes Signal Trade App. What you can get for free is a trial: 5 days on Signal Trade App (card required), 7 days on Replikanto, Duplicate Account Actions and TradeSyncer, and 7 days on TradeCopia’s Pro and Pro+ Lite plans.
If you want to avoid a monthly bill, the one-time options cost less over time: Duplicate Account Actions at $195 for one PC, Replikanto at $299 lifetime for one machine, or the Signal Trade App self-hosted licence at $599 once. Whatever you pick, run it on demo or Sim accounts first and confirm every follower enters and exits with the leader before you trade funded accounts.
With Signal Trade App, copying in NinjaTrader 8 works through the Tradovate or Rithmic accounts behind your NinjaTrader connections:
Before going live, confirm your prop firm allows copy trading between your own accounts. Rules differ by firm.
If your NinjaTrader accounts connect through Tradovate or Rithmic, you can have a copy group running in a few minutes, with nothing to install and no need to keep NinjaTrader open. Start your 5-day free trial, test on demo, then add your funded accounts.
Yes, with a trade copier. Either install an NT8 add-on such as Replikanto or Duplicate Account Actions by Affordable Indicators, which copies between accounts connected in NinjaTrader 8, or use a cloud copier such as Signal Trade App, TradeSyncer or TradeCopia, which copies from the Tradovate or Rithmic account behind NinjaTrader.
It depends on how you work. Signal Trade App is a low-cost cloud option for unlimited Tradovate and Rithmic accounts ($29/month). Replikanto and Duplicate Account Actions suit traders who want everything inside NinjaTrader on a one-time licence. TradeSyncer covers the most platforms, and TradeCopia offers a desktop app or a dedicated VPS.
With Signal Trade App: connect the Tradovate or Rithmic logins behind your NinjaTrader accounts, create a copy group, choose the account you trade in NinjaTrader as the leader, add followers with a size ratio, and place a test trade on demo. After that, every trade on the leader is copied to the followers.
Not among the copiers compared here; none has a permanently free plan. All offer trials: 5 days on Signal Trade App and 7 days on Replikanto, Duplicate Account Actions, TradeSyncer, and TradeCopia’s Pro and Pro+ Lite plans. The lowest one-time price is Duplicate Account Actions at $195 for one PC.
Yes. Signal Trade App copies to unlimited follower accounts, each with its own size ratio, and followers can be on Tradovate, Rithmic or both. Duplicate Account Actions lists no account limit, and Replikanto states no maximum.
For an NT8 add-on, yes: Duplicate Account Actions requires NinjaTrader to stay open with all accounts connected, and Replikanto also runs inside NinjaTrader. Signal Trade App copies from the broker side, so once your trade is placed, copying does not depend on NinjaTrader staying open.
Yes. Signal Trade App lets a Rithmic leader and Tradovate followers (or the reverse) sit in one copy group. Followers enter when the leader’s entry fills and exit when its stop or target fills.
It is the NinjaTrader 8 trade copier from Affordable Indicators. It runs inside NinjaTrader Desktop on Windows, costs $195 one-time for one PC or $315 for two PCs, and has a 7-day trial and a 30-day money-back guarantee.
No. Signal Trade App does not connect to Topstep, TopstepX or ProjectX accounts. It works with NinjaTrader accounts that connect through Tradovate or Rithmic.
Signal Trade App lets you copy one trade across unlimited prop firm accounts in under 50ms. Sign up free with a 5-day Pro trial (credit card required, no charge during trial).