ONELAB vs CompositesAI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ONELAB
This application provides a finite element package for simulating multi-physics problems. It integrates with open-source tools for mesh generation and solving, offering ready-to-use examples for electromagnetics, thermics, and mechanics.
- Finite element package
- Multi-physic problem simulation
- Electromagnetics, thermics, mechanics
- Integrates with Gmsh and GetDP
- Ready-to-use examples
- Add new models via zip archives
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ONELAB (http://onelab.info) is a finite element package based on the open source mesh generator Gmsh (http://gmsh.info) and the solver GetDP (http://getdp.info). It can be used to simulate a wide variety of multi-physic problems: electromagnetics, thermics, mechanics... ONELAB comes packaged with a selection of ready-to-use examples. New models can be added simply by opening the corresponding zip archive (in Safari, iCloud, Dropbox, etc.).
CompositesAI
This AI-powered platform assists composites engineers by providing instant, expert-level answers to questions about material design, calculations, and process optimization. It offers a chat assistant for natural language queries and specialized tools for calculating various material properties and generating meshes.
- AI Chat Assistant for engineering queries
- Calculate beam stiffness matrix
- Calculate plate A, B, D matrices
- Calculate solid stiffness matrix
- Calculate coefficient of thermal expansions
- Mesh generation with Gmsh
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CompositesAI is an AI-powered expert system for composite materials and structures. It brings together trusted engineering knowledge, expert insight, and advanced simulation tools in an easy-to-use conversational interface. Users can ask technical questions in natural language, receive sourced and traceable answers, and connect directly with physics-based and machine-learning simulation tools. CompositesAI helps engineers, researchers, educators, and students access composite knowledge more efficiently and make better-informed engineering decisions.
Screenshots
Verdict
The clearest difference is ads: ONELAB at none against CompositesAI's shown. ONELAB also leads on monetization model (free vs ad-supported) and iOS requirement (9.0 vs 15.0). CompositesAI's advantage is update cadence (every 9 days vs every 2 months) and ratings volume (17 vs 1). On price, rating, review sentiment 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for ONELAB against 4.9 for CompositesAI. That said, the two scores are not equally well evidenced: CompositesAI has 17 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
ONELAB ships an update every 2 months, CompositesAI every 9 days. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.
| Parameter | ONELAB | CompositesAI |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.9 (17 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 1 | 17 — better |
| Update frequency | Every 2 months | Every 9 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 95 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Christophe Geuzaine | APPS BAY LIMITED |
Customer experience
ONELAB
CompositesAI
In-app purchases
ONELAB
No in-app purchases
CompositesAI
No in-app purchases
