Alex Green, 37, was surprised with the apps on two separate devices during a raid on his Stuart Close home on October 15 last year.
Derby Crown Court heard that agents also found Green in possession of a Google Nest speaker and a Fitbit smartwatch.
The apps and device have put Green in violation of a five-year Sexual Injury Prevention Order (SHPO) imposed in 2018.
Under the terms, Green was told he had to notify the police of any new device capable of accessing the internet within three days.
While he was prohibited from using online messaging apps unless he provided police with his username and password – also within three days.
Prosecutor Abigail Hill said Green was jailed in 2012 for two counts of sexual activity with a child, but subsequently violated his SHPO.
As a result, in 2018 he was jailed for 18 months, suspended for two years, and a new five-year order was imposed.
Judge Shaun Smith QC heard that an inspection of the accused’s Samsung tablet revealed that he had had conversations with an adult female.
However, Green’s defense attorney Will Bennett told the court that the Hangouts app came with the tablet and was “something nobody noticed at the time.”
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He added: “There was a conversation with a woman in her twenties, even thirties, the SHPO was to prevent her from contacting children.
“The risk of prejudice in my submission was low.”
Speaking of the Discord app, Bennett said Green had “technically” broken the order but “stayed very much in the spirit of the order.”
While the Fitbit could only receive text messages and couldn’t receive facial calls or be used to view videos – and Mr Bennett added “it would be difficult to watch any kind of pornography” on the Google Nest.
He said the loudspeaker could only be used to send messages if it was connected to a phone that the police were not aware of.
Green, of Stuart Close, Chesterfield, admitted three counts of violating a sexual harm prevention order.
Handing him an 18-month community order and noting that he had already served his conditional sentence, Judge Shaun Smith QC told Green: “You are no stranger to these courts for breaking the prevention orders. sexual harm.
“You’ve raped one before and it must have been pretty serious because the court imposed an 18-month suspended sentence.
“These are pretty much technical lapses with the order – nothing serious came out of it. These were not attempts by you to contact children.
The defendant was also fined £ 250, court costs £ 340 and 30 days of rehabilitation activity.
Reminding him that the SHPO stayed in place until 2023, Justice Smith added: “Be careful what you get and what you put on it.”