Zenbot vs HaasBot

API keys are the "keys" to access your trading exchange account with a 3rd party app. If an app has withdrawal permissions, it can theoretically steal your crypto. This bot does not need such permissions to work, thus it can lose money if not configured properly, but it can't steal your money.

Anyone can edit and tweak its trading algorithms and fine-tune them to their liking. You can even edit its code and fork your own product.

It has no fees because it's experimental (not meant to be run as-is) and geared towards coders.

Stops are automated orders to protect your capital (by selling or buying) if the market behaves unexpectedly. They let you leave with most of your capital if things don't go your way. Trailing profit stops protect your capital against market crashes while at the same time "letting the ball roll". They get activated by sudden drops of price, and their activation levels rise automatically with the price of the asset.

It is a mock operation mode that works on a simulated balance with the live market data.

Backtesting is basically running a set of rules on past market data and seeing how the bot would have performed during that period. With good projection, an experienced trader can always find similar market conditions to the current ones in past data and then carry out that winning strategy on to the future.

Technical analysis is about interpreting the chart action in a way that allows a trader to single out statistically "high profit-low risk" trades.
Technical analysis based trading bots do not open trades based on a static matrix, instead they have some adaptability to changing market conditions.

They fully support some of the most common exchanges: GDAX, Poloniex, Kraken, Bittrex, Quadriga, Gemini, Bitfinex, CEX.IO and Bitstamp. There are also plans to add more exchanges to the supported list.

High-Frequency Trading is essentially the type of trading that commercial software trading platforms do. In layman terms, it is characterized by complicated algorithms working automatically to daytrade at super fast speed, a lot faster than the human brain can analyze.

Technical indicators are statistical analysis tools that help traders find "low risk-high reward" trade setups.
You can program the bots to use several technical indicators, including RSI, MACD, Fib retracements, etc.

They also keep adding new ones regularly.

There are no extra fees for the number of orders placed, and they don't take a percentage of your profits.

You can use proprietary automated safeties and insurances to protect your capital.

It can send messages to your Telegram to notify you of profits, losses, and keep you updated on market data.

Backtesting is basically running a set of rules on past market data and see how would the bot have performed during that period. With good projection, an experienced trader can always find similar market conditions to the current ones in past data and then carry out that winning strategy on to the future.

It is the most popular and trusted bot, with thousands of users and several reviews.