# Lab4U vs Circles

The clearest difference is review sentiment: Circles at 88% against Lab4U's 36%. Circles also leads on rating (5.0 vs 4.5) and in-app purchases (none vs 4). Lab4U's advantage is ratings volume (10 vs 1) and device support (3 vs 1). On price, update cadence and ads there is nothing between them.

Both are free to download. Lab4U sells 4 one-off in-app purchases. Circles asks for nothing beyond the download.

Circles holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Lab4U has 10 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 36% of Lab4U's written reviews are positive against 88% of Circles's.

Lab4U ships an update fortnightly, Circles every 2 weeks. The most recent releases landed on August 15, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Lab4U | Circles |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (10 ratings)](https://appshunter.io/ios/app/lab4u/id1049405068/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/circles-learning-together/id1584686101/reviews)** |
| Number of ratings | **10** | 1 |
| Positive reviews | 36.4% of reviews | **88.2% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 104 MB | 118 MB |
| Requires iOS | **14.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Lab4U, Inc.](https://appshunter.io/developer/1049405067) | [ED4.ONE SpA](https://appshunter.io/developer/1556458104) |

## What reviewers say

### Lab4U

[App page](https://appshunter.io/ios/app/lab4u/id1049405068)

This app transforms your device into a scientific tool for hands-on biology, physics, and chemistry experiments. Explore real-time data using your phone's sensors to learn and teach science in an engaging, inquiry-based manner.

**Highlights:** Real-time sensor experiments, Biology, physics, and chemistry labs, Inquiry-Based Learning methodology, Curriculum-aligned content, Scientific thinking development, Device camera, microphone, and motion sensor integration

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lab4physics Trial | Free | one-time |
| Lab4U Trial | Free | one-time |
| Lab4Physics Premium | $45.99 | one-time |
| Lab4U Premium | $45.99 | one-time |


### Circles

[App page](https://appshunter.io/ios/app/circles-learning-together/id1584686101)

This app transforms online learning into a social experience by allowing users to create study groups. Connect with classmates via chat and video, share resources, and schedule meetups to support each other's academic goals and achieve better learning outcomes.

**Highlights:** Create study circles up to 5 members, In-app chat and video calls, Resource sharing, Study session scheduling, Learning goal support, Activity reminders

**In-app purchases:** none


## Frequently asked questions

### Is Lab4U free?

Lab4U is free to download, with in-app purchases available.

### Is Circles free?

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

### Which has better reviews, Lab4U or Circles?

Circles is rated higher. Lab4U averages 4.5 out of 5 from 10 ratings, while Circles averages 5.0 from 1 ratings.

### Do Lab4U or Circles have ads?

Neither Lab4U nor Circles shows ads.

### Which is updated more often, Lab4U or Circles?

Lab4U ships an update fortnightly, and Circles every 2 weeks. Most recently, Lab4U was updated on August 15, 2026 and Circles on September 23, 2026.

---

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