Comparison

DreamBox Math vs Acellus

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

DreamBox Math

This digital math program offers interactive, game-like lessons for PreK-8 students. Its adaptive technology personalizes learning, while parent and educator dashboards provide insights into progress and proficiency. Available in English and Spanish, it supports conceptual understanding and critical thinking.

Highlights
  • Adaptive learning technology
  • Interactive game-like lessons
  • Personalized learning paths
  • Conceptual understanding development
  • Parent and educator dashboards
  • Bilingual (English/Spanish) lessons
  • Aligned to state standards
Read full description

DreamBox Learning Award-winning PreK-8 digital math program developed by educators with proven effectiveness. Awarded Best Math Learning Solution in 2019 by the EdTech Breakthrough Awards and scoring the highest privacy rating by Common Sense Media, DreamBox is meaningful screen-time that kids love! What You Need to Know About DreamBox: • Independent studies from Harvard and SRI found that kids who use DreamBox 60 minutes per week improved their math scores by 60% more than kids who don’t use DreamBox. • Interactive lessons with a game-like experience keep kids engaged – serious learning that’s seriously fun! • Adaptive technology meets each learner right where they are and adjusts based on how kids are solving problems for a truly personalized learning experience that’s age and grade agnostic. • Rigorous curriculum and rich learning pathways develop conceptual understanding, critical thinking, mental math skills, and procedural fluency. • Students learn independently with built-in help and in-the-moment scaffolding for “just in time” support tailored to their unique needs. • All student lessons are available either in English or Spanish and have closed captioning. • Parent and Educator Dashboards provide insight into each child’s growth and proficiency to help identify learning needs and celebrate learning milestones. • Using math proficiency insights, parents and educators can assign specific concepts or skills based on areas where additional support is needed. • Reporting aligned to all state standards. • Available for either school or home accounts. For school accounts, a school login is required. Contact your school for set-up instructions. By downloading the DreamBox Math app, students will have access to its full preK-8 curriculum. “DreamBox is such a fun platform for learning math for my kids. We have been using it for three years, sometimes as a primary resource and sometimes as a supplement to another program. Even when choosing another program, we keep the DreamBox subscription as a "go to" when the kids are feeling less motivated for book work.” — Fonda, Parent “DreamBox is awesome! My kiddo loves it and looks forward to playing on it. I love that they are learning so much, and that they think it's a game!” — Jules, Parent “DreamBox helps students understand the background information; making them stronger mathematically, conceptually, and helping them fully understand the material. That’s what I like. They’re walking away with a deeper understanding of math.” — Amber, Teacher “DreamBox allows our teachers to really provide in-the-moment differentiation to reach each student where they are.” — Leia, Principal

About

Acellus

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.

Highlights
  • Self-paced learning
  • Personalized instruction
  • Live progress monitoring
  • Automatic record-keeping
  • Data-driven instruction
  • Comprehensive K-12 curriculum
Read full description

Every student learns differently. Acellus meets them where they are — with personalized, video-based K-12 instruction used by over one million students across every U.S. state. Short video lessons introduce each concept, followed by practice problems that adapt to how your student is progressing. The result: a dynamic learning experience built around the individual, not the classroom average. Learn at Their Own Pace Students work independently through concepts, with personalized instruction that helps them truly master each one before moving on. Stay in the Loop Monitor your student's progress in real time from any device. Scores, hours worked, and course progress are automatically compiled into printable reports. Always Improving Student responses are continuously analyzed and used to refine course content — so courses get more effective over time, updated daily. A Complete K-12 Curriculum Acellus covers all core subjects K-12, plus Advanced Placement (AP), Exceptional Education, Career & Technical Education, and Exam Preparation — over 470 courses in total. Learning That Goes Anywhere At school, at home, or on the go — Acellus picks up exactly where your student left off, on any device with an internet connection. Give your student the personalized education they deserve. Download Acellus today.

Screenshots

Acellus4 screens

Verdict

The call

The clearest difference is rating: Acellus at 4.5 against DreamBox Math's 3.0. Acellus also leads on monetization model (free vs subscription) and ratings volume (32K vs 673). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Acellus holds the better App Store score, 4.5 against 3.0. That said, the two scores are not equally well evidenced: Acellus has 32K ratings behind it against 673, so its average is the more settled of the two. Written reviews point the same way: 22% of DreamBox Math's written reviews are positive against 36% of Acellus's.

UpkeepUpdate frequency

DreamBox Math ships an update every 2 months, Acellus every 3 months. The most recent releases landed on September 19, 2026 and September 24, 2026 respectively.

Scorecard4 real differences · 6 level
DreamBox Math versus Acellus: the parameters behind the verdict, then further details
ParameterDreamBox MathAcellus
PriceFreeFree
Rating3.0 (673 ratings)4.5 (32K ratings) — better
Positive reviews22.5% of reviews36.1% of reviews — better
Number of ratings67332K — better
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationSubscriptionFree — better
DevicesiPadiPhone, iPad — better
Requires iOS17.016.4 — better
Further details — not scored
Size4 MB7 MB
Age rating4+4+
DeveloperDreamBox Learning, Inc.GoldKey Security Corporation

Customer experience

DreamBox Math

All ratings673 ratings
Positive48.1%
Neutral5.6%
Negative46.2%
Written reviews307 reviews
Positive22.5%
Neutral6.5%
Negative71.0%

Acellus

All ratings31,649 ratings
Positive87.6%
Neutral3.2%
Negative9.2%
Written reviews507 reviews
Positive36.1%
Neutral15.2%
Negative48.7%

User reviews

DreamBox Math

From 673 App Store ratings

What we love

  • 🤗 Fun and engaging
  • 💡 Adaptive to user's level
  • 👍 Helps improve math skills

Room to improve

  • 🤖 Annoying AI assistant
  • 🤯 Lessons too difficult or confusing
  • 🕰️ Lessons take too long to complete
  • 🙄 Lack of clear explanations
  • 🤬 Incorrect answers marked as wrong

Acellus

From 32K App Store ratings

What we love

  • 👍 Easy to navigate classes
  • 👍 Engaging and interactive lessons
  • 👍 Flexible and self-paced learning
  • 👍 Helpful and fun teachers
  • 👍 Ability to track progress and compete with friends

Room to improve

  • 🐛 Occasional crashes and freezes
  • 🐛 Incorrect answers marked as wrong
  • 🐛 Lessons not always aligned with assessments
  • 🐛 Boring or gimmicky teaching styles in some courses
  • 🐛 Lack of live teacher interaction and support

Bugs and requests

DreamBox Math

Reported bugs

3 issues
  • App crashes and freezes
  • Glitches with lesson progress tracking
  • Compatibility issues on certain devices

Requested features

4 requests
  • Allow skipping of explanations
  • Provide more detailed feedback on mistakes
  • Offer different difficulty levels for lessons
  • Improve game mechanics and mini-games

Acellus

Reported bugs

4 issues
  • Videos randomly restarting or freezing
  • Incorrect grading of written assignments
  • Inability to review past lessons and videos
  • Courses not properly syncing progress across devices

Requested features

5 requests
  • Add subtitles or transcripts for videos
  • Allow skipping of videos if content is already understood
  • Improve mobile app usability and stability
  • Provide more hands-on and interactive learning experiences
  • Offer more personalized learning paths and feedback

In-app purchases

None

DreamBox Math

No in-app purchases

None

Acellus

No in-app purchases

Questions

Is DreamBox Math free?
DreamBox Math is free to download, with no in-app purchases.
Is Acellus free?
Acellus is free to download, with no in-app purchases.
Which has better reviews, DreamBox Math or Acellus?
Acellus is rated higher. DreamBox Math averages 3.0 out of 5 from 673 ratings, while Acellus averages 4.5 from 32K ratings.
Do DreamBox Math or Acellus have ads?
Neither DreamBox Math nor Acellus shows ads.
Which is updated more often, DreamBox Math or Acellus?
DreamBox Math ships an update every 2 months, and Acellus every 3 months. Most recently, DreamBox Math was updated on September 19, 2026 and Acellus on September 24, 2026.

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