Verithiathe honest score on any app
Updated July 2026 · real, multi-region App Store reviews
The verdict on

Saturn Calendar

55
User verdict / 100 High confidence Divided

Saturn Calendar is a helpful scheduling app for high schoolers, praised for its accuracy and ability to track classes, but recent updates have introduced significant usability issues, including login problems, compatibility restrictions for older devices, and persistent schedule glitches.

4.7★ lifetime (67,630) Free to download since 2019 by Saturn Technologies Inc. updated 0.0 mo ago recent negative 47% 120 reviews across 2 regions
Login & Access Issues Schedule Inaccuracies & Bugs School & Class Availability Performance & Stability Social Features & Privacy
5★55
4★39
3★45
2★34
1★91
recent reviews across 2 regions, vs the 4.7★ lifetime average

Saturn Calendar is a popular productivity app designed to help high school students manage their schedules and connect with classmates. While many users appreciate its core functionality for tracking classes and providing timely reminders, recent updates have led to a surge of negative feedback regarding technical issues and reduced accessibility.

What users like

  • Effectively tracks class schedules and provides time remaining notificationsR95R85R101R64
  • Helpful for remembering schedules, especially at the start of a new semesterR93R78R85
  • Allows users to connect with classmates and see who is in their classesR64R50R82

What users complain about

  • Many users cannot log in or use the app due to verification code issues or update requirements for newer iOS versionsR12R27R41R11
  • Schedules frequently disappear, show incorrect information, or are difficult to update manuallyR15R23R26R35
  • AI features for schedule creation are buggy, unhelpful, or have been removedR16R28R38R2
  • Lack of support for specific school types (middle school, junior high, homeschool) or the ability to change schools within the appR49R31R122R134
  • App is frequently glitchy, slow, or crashes, making it unreliableR17R24R25R26
  • Issues with adding the 'Class of 2030' option for new usersR1R3R4R6
  • Notifications can be excessive, inaccurate, or cannot be easily managedR77R91R73R233
  • Limited calendar customization, such as adding personal events or handling complex block schedulesR66R111R28R76

Latest update · v10.26.0

What the developer says changed (the verdict above weighs this against what reviewers report):

• Add your group calendars! Clubs, teams, and other groups can now create shared calendars on Saturn. Add your practices, rehearsals, meetings, and games to keep the whole group organized!

Recurring themes

Login & Access Issues negative
Many users report being unable to log in, receive verification codes, or access the app due to mandatory updates requiring newer iOS versions that their phones cannot support. This directly contradicts the expectation of an accessible app for students.R12R27R41R11
Schedule Inaccuracies & Bugs negative
A significant number of reviews highlight problems with schedules disappearing, displaying incorrect class times or days, or being difficult to manually update. The AI schedule creation feature is also criticized for being buggy or unhelpful.R15R23R26R34
School & Class Availability negative
Users frequently report that their specific school is not available, or they cannot select the correct 'Class of' year (e.g., 2030). There are also requests for the app to support middle schools, junior high, or homeschoolers, indicating a narrow target audience.R1R3R4R6
Performance & Stability negative
The app is often described as glitchy, slow, laggy, or prone to crashing. This impacts the user experience and reliability of the scheduling features.R17R24R25R26
Social Features & Privacy mixed
While some users appreciate connecting with friends and seeing their schedules, others report issues with friend requests not working, or express concerns about forced sharing and the removal of in-app chat. The latest update's focus on group calendars is noted, but existing social features have issues.R7R17R50R56

Who it's for

Saturn Calendar is for high school students who want a digital tool to track their class schedules and connect with peers in their school R78R85R95. It is not for students in middle school, junior high, or homeschool, nor is it suitable for users with older iPhone models that cannot update to the latest iOS R134R49R31R42.

Evidence note: The recent reviews skew heavily negative, with many users experiencing critical bugs that prevent app usage. While there are positive comments about the app's core functionality, these are often overshadowed by complaints about recent updates. The developer's notes mention adding group calendars, but no recent reviews address this new feature, suggesting it either hasn't rolled out widely or hasn't impacted the major pain points.

Frequently asked

Can I use Saturn Calendar if I am in the Class of 2030?
Many users report issues with the 'Class of 2030' option not being available, preventing them from logging in or setting up their profiles R1R3R4R6.
Does Saturn Calendar work on older iPhones?
Recent updates have made Saturn Calendar inaccessible for users with older iPhones that cannot update to iOS 17.0 or higher, as the app requires the latest version to function R11R18R42R46.
Can I manually input my school schedule in Saturn Calendar?
While some users prefer manual input, many report difficulties and bugs when trying to manually add or change classes, with the app often reverting to incorrect schedules or not saving changes R15R26R28R37.
Is the AI schedule helper reliable?
The AI schedule helper has been criticized for being buggy and unhelpful, with some users reporting it disappeared entirely or created incorrect schedules R2R16R20R38.

What reviewers actually said

Built only from these 120 real reviews (foreign ones translated). Superscripts jump to the quote here. Apple has no per-review links, so [ref] opens that app's reviews on the App Store.

  1. [R95] 5/5 · US Amazing !!: I literally love Saturn. It’s so helpful when I don’t remember what I have next so I don’t have to stop in the middle of the halls just to take out my schedule to see what it is that I have next. I recommend this to anyone who struggles to remember their schedule
  2. [R85] 5/5 · US Love it!: When I started my freshman year, I felt like such a literal noob carrying my paper schedule anywhere I went through the school, but this app is actually so great, because you just put your schedule into it easily and it will sync up with your schools calendar do that it knows when all your classes are! My favorite part is that a banner that says what class your are currently in and how m
  3. [R101] 5/5 · US fye: Ive been able to plan things better thought my day because the app lets me know how much time j have left in a class so it helps me with like knowing how much time i have for work and finishing up things before my next period also like when i can use the restroom since honestly i go to the restroom a lot jst to take a walk and a breather since school gets genuinely stressful sometimes
  4. [R64] 5/5 · US Pretty good :D: I like that it keeps track of my classes, and is incredibly accurate as well as keeping me connected with people who are in the same classes however it has problems AT LEAST once a day. Sometimes in the middle of the day it’ll switch over to the “no school” schedule for no reason, often has bugs where the window that shows you how much you have left in a class shows up twice, and s
  5. [R93] 5/5 · US i love saturn: very effective during the beginning of each semester when you have a new schedule
  6. [R78] 5/5 · US I used this all of high school: Definitely helps, I would not remember my classes without this app I find it so helpful and use it almost every day
  7. [R50] 2/5 · US good idea in theory but bad application: pros good for start of school year good for seeing who’s in what classes good for seeing who’s in your class cons useless after a week nobody uses the class chat function nobody uses the chat function notifications are annoying especially with fake friend request notifications does not say where rooms are for the beginning of the school year nobody use
  8. [R82] 4/5 · US wish it had better widgets: this app is really helpful for knowing how long your classes are and how long you have until class starts and i like that it shows the length on the lock screen. when you join your school the teachers and classes are already put in so you just search for them and set the classes. i think that a student sets it up manually so if no one else at your school is on saturn it
  9. [R12] 3/5 · US Terrible update: saturn was working just fine until a few months ago it had an update and it asks my phone number for a verification code there is no code whatsoever please fix igttg
  10. [R27] 1/5 · US Couldn’t even use it: I’ve tried every possible way to get into Saturn using my phone number and every single time it has not messaged my number. Can yall fix that please😭
  11. [R41] 1/5 · US Issue: it keeps having me send the verification text to log in, but i never get the message with the code. also had my mom do it with her phone number and it didn’t work then either. they should have and option to verify with your email if it’s not even going to work.
  12. [R11] 1/5 · US Saturn should be accessible for all: I was able to access Saturn before the “new update” occurred, and now I am unable to use it because it requires an update that only accommodates newer iPhones. Mine is an X and I can no longer use Saturn because it opens at a screen that says to update, with a button that leads to the app store, where it kindly informs me that I’m unable to update the app becau
  13. [R15] 3/5 · US Regarding an issue with the class schedules: I just want to say that days when I have classes will say it is a free day or no school. This is totally incorrect and when I try changing the schedule, it just stays loading saying it is “finishing things up” or “finalizing your schedule” making me stuck with the stupid alien. (Y’all know what I’m talking about) I just ask that you take a look into thi
  14. [R23] 4/5 · US Error in calendar: The calendar is very simple while also being very useful for my school, but for some reason around every 2 months, all my classes disappear and tell me that I need to set my schedule again. So I constantly call support (which is probably almost just as good as steam support) to get my schedule back the way it was. Overall , the Saturn calendar is amazing, but I would like the sc
  15. [R26] 1/5 · US Glitchy: This app is so incredibly glitchy, first whenever I tried to put my schedule in it would not add my glasses, no matter how many times I tried, so I had to manually add them only for the app to change the days so that the classes show up on the wrong day and it always goes back no matter how many times I fix it. I just deleted it.
  16. [R35] 2/5 · US Missing Schedules: Almost every other week my schedule is missing in Saturn and it takes multiple day for it to pop up also it’s so difficult to change your schedule
  17. [R16] 1/5 · US AI feature is useless: It used to be a good scheduling app before you depended on an extremely buggy AI system for scheduling. I’d much rather manually put my classes in, because everytime i put a photo of my ACTUAL school schedule, it asks for a school-wide(???) schedule instead. Deleting.
  18. [R28] 1/5 · US I do not like the AI schedule creation feature: I would like to create my own custom schedule due to the fact my school runs on a block schedule and not the normal 6 hour schedule.
  19. [R38] 2/5 · US Useful till it breaks: It worked for half of my highschool year then broke and I have no 4th period. I asked the built in ai and it said it cant help with my schedule. I removed all the classes and re-added them. Nothing worked
  20. [R2] 1/5 · US AI tool not there: The app was fine, but agter s little bit the ai alien helper just disappeared for me. Why did this happen???
  21. [R49] 3/5 · US More accessibility: It’s a great app, but i wish it was available to junior high. I am currently in eight grade, which is 13-14 years old (meets the age requirement for the app). But it sucks that we’re old enough for the app but there’s no option for our schools.
  22. [R31] 4/5 · US School: I wish that this app would have middle school it because i am in middle school can you make this a new feature?
  23. [R122] 3/5 · US It’s an ok app I recommend for high schoolers only tho: I am in 8th grade but this app only has high schools even tho it says 12 and up and snap chat allows 8th graders so I put my future high school in and it’s a good schedule app but if your friends don’t have it it kinda defeats the purpose of the whole sharing your schedule thing but that is also an easy fix on my part
  24. [R134] 3/5 · US Only for HS and College: This app is exclusively for high school and college students. The registration is strict and will ask for your school name, and block you otherwise. If like me, you are hoping to use the schedule features to help your younger child stick to her work, then you won’t be able to register. The app seems to be more a social app, to connect with students in your school, than s
  25. [R17] 4/5 · US Promising School Scheduling app with flaws: The concept of this app is pretty promising, I actually really like it but it’s also relatively buggy and frustrating to use sometimes. Like for instance it can be slow a lot of the time when it comes to loading to view your friends’ classmates with the UI being a little weird, like you can view a profile and accidentally hit send a friend request withou
  26. [R24] 2/5 · US It’s not working I don’t know why I’m trying to fix it and restart and it’s not letting me do it: This is not working. I’m trying to restart it.
  27. [R25] 2/5 · US Slow: It’s being really glitchy right now. I open the app and it doesn’t show my classes then I close out and go back in and it finally shows my classes, and it been every single time I open the app not just once in a while.
  28. [R1] 1/5 · US No new years: I am trying to login to see who is in my class next year but they don’t have the 2030 option so i can’t login could be a better app if they were on top of things
  29. [R3] 5/5 · US Class of 2030: Nice app! I just want class of 2030 to be added
  30. [R4] 5/5 · US ADD CLASS OF 2030!!: can u please add class of 2030? we are freshman now😭
  31. [R6] 1/5 · US Can’t use: I am class of 2030 when will this update
  32. [R77] 3/5 · US Too many notifications: Helpful at first but annoying after a while
  33. [R91] 3/5 · US Notifications: I try to turn off its notifications in sleep mode so I can sleep but at 9:47 a notification keeps waking me up and giving me a little heart attack
  34. [R73] 4/5 · US Great app! But…: Saturn is such a great app, but I wish I could add modified days without a photo schedule; as it just ends up erroring and makes me enter the times manually. I wish I could just enter them manually to begin with. The app also sends frequent false notifications, including schedule changes and saying I have a class; but in reality I have lunch. You typically have to open the app to
  35. [R233] 3/5 · US too much AI and too many notifications: it keeps telling me i have “a few classes on the schedule today”. 🤯🤯🤯 what reallyy?? i didn’t knoww!! get rid of the ai please
  36. [R66] 3/5 · US Just one complaint: I have used this many times, but it’s hard to use because I can’t put all of my performances and after-school activities. I think there should be a way to put your personal calendar on there, with birthdays, activities, and more! It’s good, I just don’t use it much anymore
  37. [R111] 3/5 · US Disappointed: I love having saturn to keep track of period times but the biggest downfall is that they don’t support split schedules. my school follows 3 different regular schedules and different period times aren’t supported which makes the app almost unusable to 2/3s of students
  38. [R76] 4/5 · US The ABC/123 days do not change accordingly; Have to change each day manually.: After a day when school gets canceled out of nowhere or some Holliday happens Saturn does not adjust to the days you change. For example let’s say Columbus Day on Monday would be a C day, my school moves the C day from Monday to Tuesday. When I change Tuesday to a C day the other days don’t change accordingly and I have
  39. [R34] 1/5 · US Awful: terrible schedule management and doesn’t display accurate classes. need to manually insert classes which takes out a large chunk of time.
  40. [R7] 4/5 · US Cutie Patootie!: Super cute app for when i started high school! Though, when I pressed a button to “invite” someone to the app, it sent them like a text of my schedule which i didn’t expect, but it lowkey makes sense so that’s nothing to bad lol. Thanks for this app, it’s very nice and knows ur schedule very well!
  41. [R56] 1/5 · US Friend request not working: Whenever my friends send me a request it doesn’t work but the notification says someone friend requested me and whenever I go to there profiles it says whoops something went wrong and has been doing this for a while now
  42. [R18] 3/5 · US Update: So i got the app, but i genuinely cant go into the app anymore because i don't have to the new phone version it wants me to update too.
  43. [R42] 1/5 · US Unusable: Won’t even let me look at my schedule because there’s a big update screen in the way, then when I go to update it I’m not allowed because my phone isn’t recent enough. Mind you it’s an app for students, meaning people who likely can’t just buy a new phone, and that isn’t even tackling the fact not everyone can afford a recent phone. Classist and ageist.
  44. [R46] 2/5 · US Use: I used to like it but now I don’t because since it updated I can’t use it so pleaseeeee let all iOS use the app
  45. [R37] 1/5 · US What the heck.: I can’t even save the class schedule.
  46. [R20] 5/5 · US Thanks for removing ai: Thanks for removing the ai (Ringo). Not everything needs ai and it’s a waste of money and energy

Synthesized from 120 recent App Store reviews · updated July 2026 · View on the App Store