# TERC EarthLabs vs Promethean

The clearest difference is rating: TERC EarthLabs at 5.0 against Promethean's 2.5. TERC EarthLabs also leads on review sentiment (40% vs 18%) and iOS requirement (8.0 vs 15.0). Promethean's advantage is update cadence (every 4 months vs every 53 months) and ratings volume (61 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

TERC EarthLabs holds the better App Store score, 5.0 against 2.5. That said, the two scores are not equally well evidenced: Promethean has 61 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 40% of TERC EarthLabs's written reviews are positive against 18% of Promethean's.

TERC EarthLabs ships an update every 53 months, Promethean every 4 months. The most recent releases landed on November 1, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | TERC EarthLabs | Promethean |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/terc-earthlabs/id929008909/reviews)** | [2.5 (61 ratings)](https://appshunter.io/ios/app/promethean/id1447288595/reviews) |
| Number of ratings | 1 | **61** |
| Positive reviews | **40.0% of reviews** | 17.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 53 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 40 MB | 66 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TERC, Inc.](https://appshunter.io/developer/663250154) | [Promethean](https://appshunter.io/developer/321367877) |

## What reviewers say

### TERC EarthLabs

[App page](https://appshunter.io/ios/app/terc-earthlabs/id929008909)

This app offers free high school Earth science curriculum units with interactive visualizations, videos, and hands-on labs. It allows users to run Flash-based videos and interactives on their iPad for engaging science education.

**Highlights:** Interactive visualizations, Video content, Hands-on labs, Flash-based interactives, Curriculum units

**Features:** macOS Compatibility

**In-app purchases:** none


### Promethean

[App page](https://appshunter.io/ios/app/promethean/id1447288595)

This app facilitates classroom collaboration by allowing students and teachers to interact with interactive panels wirelessly. IT administrators can also manage panel enrollment and updates. It offers screen sharing and access to training resources.

**Highlights:** Wireless screen sharing, Panel management for IT admins, Access to training materials, Student-teacher interaction, Panel enrollment and naming

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TERC EarthLabs free?

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

### Is Promethean free?

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

### Which has better reviews, TERC EarthLabs or Promethean?

TERC EarthLabs is rated higher. TERC EarthLabs averages 5.0 out of 5 from 1 ratings, while Promethean averages 2.5 from 61 ratings.

### Do TERC EarthLabs or Promethean have ads?

Neither TERC EarthLabs nor Promethean shows ads.

### Which is updated more often, TERC EarthLabs or Promethean?

TERC EarthLabs ships an update every 53 months, and Promethean every 4 months. Most recently, TERC EarthLabs was updated on November 1, 2026 and Promethean on November 11, 2026.

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