Both anime revolve around a group of boys at a music academy who train to become idols. The main difference is that UtaPri has a female lead while HSSM focuses on the boys. The boys in each have similar character designs and personalities.
Both anime involve a group of boys trying their hardest to be at the top. Both anime involve singing and dancing. both anime try to tell a story of different boys trying to achaive something, the only difference is that utapri have a girl in it which helps the boys to achieve the top while starmyu doesn't. So if you liked starmyu you will definitely like utapri because they are really similar in ways like the character development with each other, the songs they sing, the main story line which is to reach the top.
Starmyu and Dream festival are similiar because they both have found a bond
The two feel the same
They both have drama and yet they all get it fix
Kanade and Yuta are alike in a lot of way and they both are to happy going and they love helping people
Chizuru remind me Nayuki and there both the most adorable one
Junya is like Shuu to me and he look so mean yet his one of the nicest person you ever meet. plus Junya see Kanade as friend and rival and like Shuu see Yuta as a friend and rival
Shin and Kaito both have the cool and friendly feeling
If you like Starmyu and you will love Dream festival
This anime is got drama, amazing song if you still truth with Cg and rival and friendship and growing and bond
5 guy in one Band/Unit
they both have different hair colour they both chasing some dream.  read more
A group of boys on their way to become idols. Starmyu has school setting and Shounen Hollywood story takes place in a theater. In both shows, the boys work hard to reach their goals although Shounen Hollywood has higher grade of realism. Musicals and character songs are important parts of these shows.
Like in Love Live, the characters Starmyu/High School Star Musical show their bonds and their friendship through the music they make. It's an emotional journey as the group takle the problems that they face through their journey which are similar to Muse
Both anime focus on a group of boys and their development together as a team. While Starmyu is about music and Free! is about swimming, both focus on the teamwork and friendship between the main characters. They can both be cheesy and overdramatic at times but if you enjoyed the friendship in one of them, you will probably like the other.
Feel-good anime with bishounen that will have to learn to work together to become successful. Both series have wacky humor and don't take themselves too seriously, while still giving nicely developed characters a chance to interact and grow.
There are countless of series that do the same with female characters, and aim for a male fanbase. It is therefore nice to see more that target female fans.
If you like one, you're likely to also enjoy the other.
Natsuki Hanae sings the OP to Makura no Danshi (and also voices one of the characters) and is the main character for Star Myu where he also sings quite a bit. Both have mostly male characters and are directed mainly towards women or girls.
Star-Mu is the male version of Aikatsu!, I swear. The five main characters of High School Star Musical are even akin to ones in Aikatsu! Aikatsu! was written for a younger audience, but is still a wonderful show about teamwork and making friends, pursuing a dream, improving oneself, and aiming to be the best! It's very fun and the characters are super lovable, though it may get a bit boring after a while (a long while though X) ), since it is for a younger audience (I would say more elementary or middle school age).
Main character from Star-Mu, Hoshiya Yuta, is very alike Aikatsu!'s star, Ichigo Hoshimiya, and even the groups from both shows have star-related names. ^^
Aikatsu! focuses much more on outfits than Star-Mu does, and has over 150 episodes, though is still ongoing.  read more
The similarities are obvious once you begin watching them; musical, reverse harem, group bonding, and school life are a few similarities that stand out the most. The biggest difference in Starmyu is the absence of a female main character, Starmyu's cast is entirely made up of guys. Other than that their really isn't that big of a difference except the lack of romance replaced in Starmyu by a little bromance but with an all male cast what do you expect.
When I watched the first episode of High School Star Musical, my mind was just screaming PriPara, so I had to make a recommendation. Both shows use a five-person team system, Star Team for High School Star Musical, and Dream Team for PriPara. The main characters are mostly one gender, boys and girls, respectfully. They also both have Junichi Suwabe voicing one of the characters. Really good anime shows so far and if you love High school Star Musical, I can guarantee you are going to love PriPara too!
Both Yuri and Hoshitani admire some one they saw perform in their youth. Where Yuri took to ice-skating, Hoshitani decided to enter in performance arts high school. Victor takes Yuri under his wing, just as Otori take Hoshitani, and 4 others under his wing.
The dance and song sequences in Starmyu is well animated and very colorful. I was left with a smile on my face after every song, just like every episode of Yuri!!! on Ice leaves me with a smile on my face.
Starmyu also have a lot of cute comedic parts and lots of bromance and rivalries which turns to friendships. Definitely worth a try!
Bonus: Both leads - Otori and Victor- are voiced by Junichi Suwabe. read more
Both have a very similar vibe, and with Binan Koukou is closer to a parody, both series are collection of moments which are borderlining on shounen ai.
Both are light-hearted and feature bright colors in their art styles. The personality types of the main characters are also similar, but a different experience can be gained from watching one over the other.
Both have a similar feeling of a group of cheerful guys trying to accomplish things. One is about a musical and another about cheerleading, but they're both very light-hearted with passionate characters.