# Acellus vs Outschool

The clearest difference is rating: Acellus at 4.5 against Outschool's 3.2. Acellus also leads on ratings volume (32K vs 121). Outschool's advantage is update cadence (monthly vs every 2 months). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

Acellus holds the better App Store score, 4.5 against 3.2. That said, the two scores are not equally well evidenced: Acellus has 32K ratings behind it against 121, so its average is the more settled of the two. Written reviews point the same way: 36% of Acellus's written reviews are positive against 29% of Outschool's.

Acellus ships an update every 2 months, Outschool monthly. The most recent releases landed on November 4, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Acellus | Outschool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (32K ratings)](https://appshunter.io/ios/app/acellus/id1050216640/reviews)** | [3.2 (121 ratings)](https://appshunter.io/ios/app/outschool/id1594191740/reviews) |
| Number of ratings | **32K** | 121 |
| Positive reviews | **36.3% of reviews** | 28.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | Free |
| Size | 8 MB | 53 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [GoldKey Security Corporation](https://appshunter.io/developer/481443211) | [Outschool](https://appshunter.io/developer/1577394774) |

## What reviewers say

### Acellus

[App page](https://appshunter.io/ios/app/acellus/id1050216640)

This app offers personalized, video-based K-12 instruction that adapts to each student's learning pace. It provides real-time progress tracking and a comprehensive curriculum covering core subjects, AP, and career-focused courses.

**Highlights:** Personalized video lessons, Adaptive practice problems, Real-time progress monitoring, Printable progress reports, Comprehensive K-12 curriculum, Cross-device learning continuity

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 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

**What reviewers complain about**

- 🐛 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

**Reported bugs**

- 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**

- 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


### Outschool

[App page](https://appshunter.io/ios/app/outschool/id1594191740)

Discover and join live online classes for kids aged 3-18, taught by teachers worldwide. Explore a vast range of subjects and learn on your own terms with interactive, small-group sessions. The app provides convenient access to classes and important notifications.

**Highlights:** Over 140K live online classes, Taught by teachers worldwide, Classes for ages 3-18, Reminder notifications for classes, Communicate with teachers, Access Zoom for classes

**Features:** iMessage stickers

**In-app purchases:** none

**What reviewers like**

- 👨‍🏫 Quality teachers and educational content
- 🎓 Diverse class offerings and subjects
- 📱 Convenient access to classes on mobile devices
- 🔔 Helpful notification system for class reminders
- 👥 Safe, vetted online learning environment

**What reviewers complain about**

- 💰 Expensive membership model and pricing structure
- 💳 Predatory credit/coin system with markups
- 🚫 Forced membership requirement (removed drop-in flexibility)
- 🐛 App frequently crashes and fails to load
- 🔍 Poor search and filtering functionality

**Reported bugs**

- App crashes and force quits frequently
- Continuous loading symbols without data retrieval
- Login failures on both app and website
- App doesn't load class data properly
- Join button doesn't connect to correct Zoom class

**Requested features**

- Calendar view showing all scheduled classes
- Search and filter functionality in app
- Ability to save/favorite classes for later
- Click-through to teacher profiles
- Ability to message teachers from app


## Frequently asked questions

### Is Acellus free?

Acellus is free to download, with no in-app purchases.

### Is Outschool free?

Outschool is free to download, with no in-app purchases.

### Which has better reviews, Acellus or Outschool?

Acellus is rated higher. Acellus averages 4.5 out of 5 from 32K ratings, while Outschool averages 3.2 from 121 ratings.

### Do Acellus or Outschool have ads?

Neither Acellus nor Outschool shows ads.

### Which is updated more often, Acellus or Outschool?

Acellus ships an update every 2 months, and Outschool monthly. Most recently, Acellus was updated on November 4, 2026 and Outschool on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*