Acellus

Acellus

Online Learning System

32K ratings
512 reviews
Free

Details

  • Released
  • Updated
  • November 1, 2015
  • July 4, 2026
Acellus screenshot #1 for iPhone
Acellus screenshot #2 for iPhone
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Acellus screenshot #4 for iPhone
Acellus screenshot #5 for iPhone
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About

This online learning system offers a dynamic and interactive educational experience for K-12 students. It uses short video lessons and practice problems to assess understanding, with personalized instruction and real-time progress monitoring available.

✓Self-paced learning
✓Personalized instruction
✓Live progress monitoring
✓Automatic record-keeping
✓Data-driven instruction
✓Comprehensive K-12 curriculum
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What users say

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What's New in Acellus

3.1.8

July 4, 2026

This update adds support for Acellus ID Cards and performance improvements.

User reviews

Good in learning but sucks in scoring

When I get a 100% it erases it and starts me over fix this now!!

Love acellus but needs work.

I love learning with acellus, BUT the A.I. sometimes just is a little too strict. But my main concern is that if I go back to get information I cant go back, Im suggesting that we can fast forward back to where we were. But not past where we was, I love to clarify but its hard to when I have to rewatch the whole thing if something I needed was at the start. Thank you!!
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i cant use it

this app actually is horribly buggy because i cant use it in different states and anywhere, it also fails me when i get something right for once.

the amount of steps you give us is way too low.

it says you have to do 40 hours a week, but it doesn’t give you enough steps to do and and it only gives you three classes to do at a time. I don’t know how they expect us to do 40 hours a week, but only give us around 30 steps to do a week per class. it takes me a couple hours to complete it and i cant even get close to the 40 hours.
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several issues (at least, in my opinion)

I’m taking the seventh grade course on Acellus, and I’ve found several issues with the app. if normal school is hell, this thing is like…hell but hell-ier…

this might just be my iPad, but I often find myself waiting ages for the application to load and experienced a fair amount of lag.

in my opinion, some of the teachers spoke way too slow or over-explained, and some didn’t cover the topic enough.

another issue I came across that really bothered me was the AI grading system.
I typically write above grade level, but the AI, instead of reading my essays as a whole like other artificial intelligence systems (chatgpt and all), it only reads the words without taking them in context.
I’ve consistently gotten marked as having 4th and 5th grade writing levels, even though, when I ask others, they usually say it’s 7th/8th grade level.
it constantly recommends that I use different words for “very,” “well,” “said,” and others, even when switching them out wouldn’t make sense.
I, personally, find this issue to be quite upsetting. it means my grade is being lowered for essentially no reason.

I recommend finding a different app or using platforms like Zoom to participate in virtual school classes.
feel free to ignore my probably heavily biased opinion, but this app made me shed tears so I felt the need to share my experience. !!
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Developer apps

User experience

🐞

Reported Bugs

4 issues

Videos randomly restarting or freezing

Bug

Incorrect grading of written assignments

Bug

Inability to review past lessons and videos

Bug

Courses not properly syncing progress across devices

Bug
✨

Requested Features

5 requests

Add subtitles or transcripts for videos

Feature

Allow skipping of videos if content is already understood

Feature

Improve mobile app usability and stability

Feature

Provide more hands-on and interactive learning experiences

Feature

Offer more personalized learning paths and feedback

Feature

FAQ

What is Acellus?

Acellus is an online learning system designed for K-12 students. It provides a dynamic and interactive educational experience through short video lessons followed by practice problems to assess understanding. The program aims to meet the specialized needs of every student with personalized instruction and a comprehensive curriculum.

What are the key features of Acellus?

Key features include self-paced learning, allowing students to work independently with personalized instruction. It also offers live monitoring to track student progress in real-time from any device, and automatic record-keeping that compiles scores and hours worked into printable reports.

How does Acellus personalize the learning experience?

Acellus utilizes research-based, data-driven instruction by analyzing statistical data on how students learn. This data is used to customize the learning process to the individual needs of each student. Furthermore, student responses are analyzed to make dynamic course updates, enhancing the effectiveness of the courses daily.

What subjects and grade levels does Acellus cover?

Acellus offers a comprehensive curriculum covering all core content areas for K-12 students. It also includes courses for Advanced Placement (AP), Exceptional Education, Career & Technical Education, and Exam Preparation, providing a wide range of educational options.

Can Acellus be accessed from anywhere?

Yes, Acellus is universally internet accessible. It uses modern web application and video streaming standards to deliver the learning experience at school or home. Students can log in from any location with internet access, and the system will resume their progress exactly where they left off.