NATIVE FEA FOR APPLE SILICON

Finite element analysis, built for the Mac.

See the stress in your part before you make it.

Import your STL or STEP geometry, apply supports and loads, solve locally on Apple Silicon with Metal, then inspect stress and displacement. No Windows PC, no cloud queue, no subscription.

Download free for Mac

See the evidence

Free tier · No credit card · Download link sent by email · macOS 14+ on Apple Silicon

Lattiform FEA Preview on a Mac showing von Mises stress in an aerospace bracket

Aerospace bracket in Lattiform FEA Preview: aluminium 6061-T6 at 1 mm, 371,200 active elements and 1,210,293 degrees of freedom on the part (the log counts all 2,091,804 grid DOF). Benchmark solve 7.42 s on an Apple M5 Pro; this capture’s log shows a separate 7.22 s run. Deformation exaggerated for display.

WHY LATTIFORM

FEA on a Mac shouldn’t need a Windows PC, a cloud queue or a subscription.

Most simulation tools assume a Windows workstation, a cloud account or an annual licence. Lattiform is built for the Mac you already design on.

No Windows, no VM

A true macOS app: sidebar, inspectors, saved documents, dark mode and shortcuts that behave like everything else on your Mac.

Answers in seconds

The solver runs on your Mac’s GPU through Metal. Each of the six parts on this page solved at 1 mm in under eight seconds on an Apple M5 Pro.

Your data stays on your Mac

Your geometry and solve data stay on your Mac. Solves run on your own GPU, and parts, meshes and results are saved to your disk, not uploaded to a solver service.

Set up right the first time

Preflight checks material, supports, loads, connectivity and memory before the solver starts, and tells you exactly what is missing.

Numbers you can defend

Every result carries its convergence record, an equilibrium check and an independent strain-energy cross-check you can show a reviewer.

Ready for the design review

Export 4K images, 1080p 60 fps videos, a Markdown report and CSV tables for reviews, reports and coursework.

HOW IT WORKS

From part file to answer in four steps.

A real study of the aerospace bracket, start to finish, in the actual app.

Aerospace bracket imported and meshed in Lattiform FEA Preview

01 Import your part

STL, OBJ, PLY, OFF or STEP. Choose an element size and it builds the analysis grid.

Supports and a load defined on the aerospace bracket

02 Set up the study

Pick a material, hold it at the mounting holes and apply the load. Preflight checks the lot.

Lattiform FEA Preview solving on the Mac GPU

03 Solve on your Mac

One click. The solver runs locally on your Mac’s GPU through Metal, and preflight checks the study first.

von Mises stress result for the aerospace bracket

04 Read the result

Stress, displacement and the convergence record, ready to export as images, video or CSV.

REAL PARTS, REAL SOLVES

Six real parts, solved on one Mac.

Each part was imported from STL, held at its mounting holes, loaded and solved at 1 mm in aluminium 6061-T6 on one Mac. Loads are illustrative; deformation is exaggerated for display.

Connecting rod von Mises stress, solved at 1 mm in aluminium 6061-T6 in Lattiform FEA Preview

Connecting rod 518k DOF · 3.4 s

Control arm von Mises stress, solved at 1 mm in aluminium 6061-T6 in Lattiform FEA Preview

Control arm 609k DOF · 6.8 s

Bicycle crank von Mises stress, solved at 1 mm in aluminium 6061-T6 in Lattiform FEA Preview

Bicycle crank 288k DOF · 3.0 s

Aerospace bracket von Mises stress, solved at 1 mm in aluminium 6061-T6 in Lattiform FEA Preview

Aerospace bracket 1.21 M DOF · 7.4 s

Motor mount von Mises stress, solved at 1 mm in aluminium 6061-T6 in Lattiform FEA Preview

Motor mount 413k DOF · 1.8 s

Robotic arm link von Mises stress, solved at 1 mm in aluminium 6061-T6 in Lattiform FEA Preview

Robotic arm link 634k DOF · 4.4 s

MEASURED ON A MAC

1.21 million degrees of freedom in 7.4 seconds.

Every part above was solved at 5, 2.5 and 1 mm in aluminium 6061-T6 and steel 4140: 36 solves, all converged. At 5 mm each part solves in under a tenth of a second; at 1 mm, in under eight. Times are the app’s own measurement from assembly to results on one Apple M5 Pro. Your Mac’s times will differ.

1,210,293

degrees of freedom in the aerospace bracket at 1 mm

7.4 s

to solve it, from assembly to results

36 / 36

solves converged: 6 parts, 3 element sizes, 2 materials

Part

Grid at 1 mm

Degrees of freedom

Solve time, aluminium

Bicycle crank

221 × 58 × 16

287,775

3.03 s

Motor mount

153 × 153 × 12

412,896

1.81 s

Connecting rod

245 × 78 × 20

518,244

3.40 s

Control arm

228 × 138 × 18

609,450

6.76 s

Robotic arm link

286 × 66 × 18

633,777

4.43 s

Aerospace bracket

211 × 142 × 22

1,210,293

7.42 s

Measured 14 September 2026 with Lattiform FEA Preview on an Apple M5 Pro (macOS 26.5, development build), Metal GPU solver, relative tolerance 2 × 10⁻⁵. Degrees of freedom count the nodes attached to the part. Download all 36 solves (CSV)

VERIFICATION, IN THE OPEN

Verified before release, and published in full.

Verification Report V4 is public. Every acceptance gate is frozen before the runs, each one is named and evaluated, and every limitation is written down. Report V3 stays online as the record for correlation against published reference tables.

496

rows PASS

rows FAIL

rows PARTIAL

rows NOT SUPPORTED

496 verification rows in V4, with all 10,305 individually named gates evaluated, none NOT_RUN and none failed. V4 covers code verification, differential testing, production recovery, robustness and scale on the packaged Metal route. V3 of 4 September 2026 remains the report of record for external correlation against NASA SP‑224(03) problems 1‑8‑1 and 1‑9‑1 and the MacNeal–Harder cantilever tables from the MSC Nastran Verification Guide 1.1, with every adaptation stated.

What this is not. The reports are evidence, not a certification, and make no claim of equivalence to ANSYS, NASTRAN, Abaqus or any other code. V4 contains no physical validation: it checks the solver against exact and manufactured solutions and against Lattiform’s own double-precision CPU backend. V4 declares no unsupported rows because it tests within its stated scope, and that scope is listed in full on the evidence page.

See the full evidence

Download the V4 report (PDF, 3.1 MB)

WHO BUILDS IT

Built independently, and answerable for every number.

Lattiform exists for a simple reason: engineers who design on a Mac deserve analysis tools built for it, not a Windows workstation, a remote queue or a licence server.

So the product is deliberately focused. It does linear static stress analysis, does it on your own machine, and shows its working on every result. Where it stops, this site and the verification report say so plainly.

The element formulation, the multigrid preconditioner, the Metal kernels and the macOS application are written in house, and the verification report is published whole rather than summarised. Lattiform is built independently in the UK by a mechanical engineering student, working on it since July 2025. I read every email myself: if a result looks wrong or something you need is missing, write in and you’ll hear back from me, not a ticket queue.

WHAT I PROMISE

Your parts never leave your Mac to be solved.

Every result shows its convergence and equilibrium checks.

The verification is public, including what isn’t supported.

Pay once. No subscription, no licence server.

A real reply from the founder, not a ticket queue.

The founder

Solver, application and verification · UK

Write to founder@lattiform.com

FAQ

Questions before you download.

Straight answers, grounded in the current build and the published V4 report.

START FREE

Try Lattiform FEA Preview free.

Enter your email and we’ll email you the free download link. Solve grids up to 20 × 20 × 20 for personal and evaluation use.

WHAT YOU GET

The full app, free

Every solve runs on your own Mac

A reply address that reaches the developer

Finite element analysis, built for the Mac.

FEA on a Mac shouldn’t need a Windows PC, a cloud queue or a subscription.

No Windows, no VM

Answers in seconds

Your data stays on your Mac

Set up right the first time

Numbers you can defend

Ready for the design review

From part file to answer in four steps.

01 Import your part

02 Set up the study

03 Solve on your Mac

04 Read the result

Six real parts, solved on one Mac.

1.21 million degrees of freedom in 7.4 seconds.

Verified before release, and published in full.

Built independently, and answerable for every number.

Questions before you download.

What is Lattiform FEA Preview?

Do I need Windows, a VM or the cloud to solve?

Which Macs does it need?

What files can I import?

What can it not do?

How accurate is it?

What is in the V4 verification report?

Try Lattiform FEA Preview free.

Try Lattiform FEA Preview free.