Piazza vs IdematLightLCA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Piazza
This platform facilitates communication and learning for higher education. Students can ask and answer questions, while instructors can monitor student engagement. It provides real-time updates and a centralized space for class interactions.
- Ask and answer questions
- Real-time updates
- Centralized class communication
- Student engagement monitoring
- Mobile access for students and instructors
Read full descriptionHide full description
Piazza is the leading social learning platform for higher education, used by hundreds of thousands of students and more than 15 thousand professors for centralized class communications and polling. If you're a student, the Piazza app lets you ask and answer questions in all your Piazza classes from your mobile device, and updates you in real time when your peers are engaged. If you're an instructor, the app gives you a simple way to check in on your students during those spare moments between meetings. Stay connected to your class with Piazza!
IdematLightLCA
Read full descriptionHide full description
The IdematLightLCA is an extension of the Idemat app for Sustainable Materials Selection, and offers the opportunity to make a Fast Track LCA for relative simple products (and services) ‘at your fingertip’. The background data are a selection of 720 processes from the Idematapp LCA database which is used at the Delft University of Technology. See for more information see www.ecocostsvalue.com/EVR/model/theory/8-IdematLightLCA.html. This app also enables the calculation of the eco-costs of a product with an Environmental Product Declaration, based on a set of EPD midpoints. The calculations are done for 3 end-of-life scenarios (Landfill; Municipal waste treatment & open loop recycling; Closed loop recycling for the circular economy). It shows clearly the benefits of the circular economy. The main application of the app is product innovation in the fuzzy front end of the design. Users are architects, industrial designers, business managers and students.
Screenshots
Verdict
The clearest difference is update cadence: Piazza at fortnightly against IdematLightLCA's every 4 months. On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Piazza ships an update fortnightly, IdematLightLCA every 4 months. The most recent releases landed on September 30, 2026 and September 28, 2026 respectively.
| Parameter | Piazza | IdematLightLCA |
|---|---|---|
| Price | Free | Free |
| Rating | 2.1 (279 ratings) — better | — |
| Positive reviews | 14.2% of reviews | — |
| Number of ratings | 279 — better | — |
| Update frequency | Fortnightly — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Piazza Technologies, Inc. | joost vogtlander |
Bugs and requests
Piazza
Reported bugs
4 issues- Inability to post or reply
- Randomly logs out users
- Fails to load posts and resources
- Incompatible with newer iOS versions
Requested features
5 requests- Dark mode option
- Ability to access course materials
- Improved formatting and editing tools
- Better organization of posts and discussions
- Seamless integration with web version
IdematLightLCA
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Piazza
No in-app purchases
IdematLightLCA
No in-app purchases
Questions
Is Piazza free?
Is IdematLightLCA free?
Do Piazza or IdematLightLCA have ads?
Which is updated more often, Piazza or IdematLightLCA?
Other comparisons















