The third season of the Sibling Rivalries series ran from May 22 to August 3, 2014. Season 3 is the shortest season of all, with only four total comics.
In GTA Nerd's opinion, despite the season being very short, he says it is an improvement over the quality of Season 2, which is his least favorite season, mainly due to the introduction of Salvador Real.
- Best Brother (Release date: May 22, 2014)
- Do You Get The Message? (Release date: May 27, 2014)
- Not Afraid (Of Losing My Concert Tickets) (Release date: July 14, 2014)
- Meet The Robots! (Release date: August 3, 2014)
- Packie and Gerry are the only siblings that do not wear their trademark clothes on the cover for this season.
- Season 3 has a unique cover, which has the names of every comic up to "Dodgeball Mishap" behind the five siblings. The three prequels were also included, although neither of them were released at the time Season 3 was written.
- Pablo Torres, for some reason, is absent in all four comics of Season 3, except "Do You Get The Message?".
- This is the only season to not feature Wisconsin Elementary School. The school last appeared in Dodgeball Mishap, the season finale of Season 2. The school returns once again in Field Trip Gone Wrong!, a Season 4 comic.
- Not including "Meet The Robots!" (which included characters from Cletus Comics), this is the season with the least amount of new characters, with only two characters making their debuts; the Saldivar siblings.
- This is the second season to remain only in one year (2014), the first being Season 1.