The Pro and Prime accounts differ mainly in the leverage that is offered and the trading restrictions.

Leverage
Pro Accounts (challenge and Hola Prime accounts): Offer leverage of up to 100:1.
Prime Accounts (challenge and Hola Prime accounts): Offer leverage of up to 30:1.

Weekend and News Trading

Hola Prime Pro Accounts (1-Step and 2-Step):

News Trading

It is normally allowed in Challenge Phases 1 and 2. However, in the Hola Prime accounts, traders can hold trades at any time but are not allowed to execute (open or close) any trade on the instruments affected by high-impact news, during the window of 5 minutes before to 5 minutes after the release of such news. Please note that the execution of trade includes market execution as well as pending orders, including Stop Loss and Take Profit orders.
You are allowed to hold trades on the affected instruments opened 5 minutes prior to the news release. If your Stop Loss or Take Profit is activated during this window of 5 minutes before and 5 minutes after, it may be taken as a violation of the Hola Prime Agreement.

Other non-targeted instruments (affected by low and medium-impact news) can be traded normally. 
For Instance: You can trade AUDNZD during the US – CPI release. However, you are not allowed to open or close USDJPY or GBPUSD during the window of 5 minutes before to 5 minutes after the CPI release.

For example: There is a High Impact news speech scheduled at 03:00 EST.
Condition I: You are not allowed to open or close any trade (including limit, stop, TP & SL of any trade) between 02:55 & 03:05.
Condition II:: If you are opening the trade before 2:55 and closing (including limit, stop, TP & SL of any trade) at any time between 02:55 & 03:05 it will be considered a violation of our Terms of Service.
Condition III: If you are opening the trade before 02:55 and closing the same trade after 03:05, the trade will be considered valid and the profit will be counted.
For news announcements affecting USD, the restriction applies for Forex pairs with USD currency involved including the Indices offered, namely US30, NAS100, and SPX500.

Note: Trades can be held during any news event- High, Low, or Medium.  The news release schedule and their impact levels can also be monitored in our Economic Calendar within the Client Portal. Trades with 3 blue bars are high Impact, 2 bars are medium Impact, and 1 bar is low Impact.

Weekend Holding

Hola Prime Pro Accounts- Holding of trades over the weekends is normally allowed in Challenge Phases 1 and 2. However, for Hola Prime Pro accounts, weekend holding is considered a soft breach, and any trade remaining open at 15:45 EST on Friday will be automatically closed by the system. Your account will otherwise remain unaffected, and you can continue trading after this.

Why are trades closed at 15:45 EST?
Traders might get a worse fill if trades were closed at 17:00 EST when the weekend rollover takes place. To avoid this trades are being closed at 15:45 EST. Additionally, it takes us time to go over all accounts and close trades in bulk. 
Note: Profit from trades that are closed by the system on Friday will be counted towards the payouts. Similarly, the trader is responsible for the violation in case any loss/deductions result in the breach of the daily loss limit or maximum loss limit in the respective account.

Hola Prime Prime Accounts (1-Step or 2-Step):

News Trading

In Prime Challenge and Hola Prime accounts, traders can trade freely during any news hours, allowing traders to take advantage of market volatility and execute trades without limitations during high-impact news events.

Weekend Holding

In Prime Challenge and Hola Prime Accounts, traders can easily hold trades during weekends, ensuring they remain in their positions without the need to close them before market closure, providing flexibility for those aiming to capture potential gaps or price movements when the market reopens.