High school career
In his freshman year, Collins played basketball at Ed W. Clark High School in (Las Vegas, Nevada). In his junior year, he transferred to Compass Prep in Chandler, Arizona. In his senior year, he transferred to Coronado in Las Vegas.
Recruiting
On August 19, 2020, Collins announced his commitment to play at Michigan, over offers from Arizona, Arizona State, USC and others. He was part of Juwan Howard's first recruiting class that was the top-ranked class in the nation according to ESPN, Rivals.com and 247Sports for the 2021–22 Michigan Wolverines. The individual player rankings were Caleb Houstan at 8, Moussa Diabaté at 20, Collins at 59, Kobe Bufkin at 63, Isaiah Barnes at 114 and Will Tschetter at 155.
College career
Michigan
In his freshman year, Collins came off the bench averaging 11 minutes per game. He averaged 2.8 points, 1.4 assists per game on 11 minutes. His first career start came in the Round 64 against Colorado State of the 2022 NCAA Tournament. He scored 14 points on 6–7 shooting. In the offseason, Collins announced that he's entering the transfer portal.
Arizona State
On May 4, 2022, Collins announced that he was transferring to Arizona State. In his sophomore year, Collins was the starting point guard. He averaged 9.9 points, 4.3 rebounds and 4.3 assists on 28.2 minutes. At the end of 2022–23 season, Collins announced that he declared for the 2023 NBA Draft. He eventually returned to the team a few weeks later. In his junior year, Collins set the school record for most steals in a season with 84 steals; beating Fat Lever's record of 76. His 2.6 steals per game lead the Pac-12 Conference and was 6th in the NCAA Division I. He also tied the school record for most steals in a game with 8 steals in a game against UMass Lowell. Collins ended his junior year making the Pac-12 All-Defensive team and earning a Pac-12 All-Conference Honorable Mention. After the season ended, Collins announced that he's entering the transfer portal.
TCU
On April 13, 2024, Collins announced that he was transferring to TCU.. After sustaining a foot injury in December, he did not play again for the Horned Frogs.
Vanderbilt
Collins played in nine games for the Commodores, averaging 7.8 points per game as the team's top bench guard. A knee injury suffered in December required a routine procedure, sidelining the guard from the court. Despite being medically cleared in January, Collins elected not to rejoin the team and withdrew from school in early March before the season had concluded. Head Coach Mark Byington stated on January 31st, "We invested in him, and he's a guy who can really help us win, so hopefully, he's got the same motivation to get back." On March 4th, Coach Byington shared that "Frankie has left Nashville, and he's not gonna be on the team. So we'll roll with the guys we got."
On March 27th, Collins officially entered the transfer portal for the fourth time.
