iOS 3D Print Strength Estimate

On the App Store

Breakspot

See likely hotspots before you print. On-device estimate, not a lab test.

Check a hook or bracket on this iPhone before you spend a reprint. Breakspot is an on-device linear estimate from Kick-Start.ai – not a lab test, not a predicted breaking load, and not a certificate that a part is safe. Import an STL, 3MF, OBJ, PLY, or AMF, paint where the part sits and where the load lands, and see a relative heatmap. No account. Parts are not uploaded to Kick-Start.ai servers.

  • On this iPhone
  • No account
  • Demo shelf bracket free
  • One free Check
  • $4.99/mo or $34.99/yr Pro
Download on the App Store Watch how it works
Breakspot on iPhone: stress heatmap on a 3D print, orange where the part is working hardest

Why use Breakspot

Estimate likely hotspots before you spend a print

An on-device linear estimate for everyday prints – hooks, mounts, and brackets – on this iPhone. Import, paint, Check. Not a lab test.

Import a print file

Export STL, 3MF, OBJ, PLY, or AMF onto this iPhone, then Import from Files – or keep the demo shelf bracket. Breakspot does not fetch models from the web. The demo stays free so you can learn the studio before you spend a Check.

Paint sit and hang

Tap every sit or bolt (blue), then every place the load lands (orange). Aim the force; gravity always pulls down. Several spots are fine.

Solve on this iPhone

Check is an on-device linear elastic estimate. Meshes and results never leave the phone. No cloud solve and no Breakspot account.

Read the heatmap

After Check, switch von Mises, principal, Z-tension, or displacement. Stress is MPa. Red is the hottest spot on this field, blue the quietest. Deform More exaggerates motion. Bands are no obvious hotspot, uncertain, or likely problem – not a breaking load.

How Breakspot works

How to run a Check on an STL in four steps

Import a print file, pick filament, paint hold and load, then run Check. The demo shelf bracket is already set up. Results are an estimate.

  1. Import

    Export STL, 3MF, OBJ, PLY, or AMF onto this iPhone, then Import from Files – or keep the demo shelf bracket. Breakspot stays on this device.

  2. Material

    Pick PLA, PETG, ABS, or resin and set infill so the Check matches how you will print.

  3. Paint Hold and Load

    Tap every sit or bolt (blue), then every place the load lands (orange). Aim the force; gravity always pulls down. Several spots are fine.

  4. Check

    Run Check. Switch von Mises, principal, Z-tension, or displacement. Hot colors are the spots most likely to be in trouble. This is an estimate – not a lab test.

Free on the App Store. Demo shelf bracket stays free; one Check on your own part is free.

Download on the App Store Watch the walkthrough

See Breakspot in action

Watch a full Check in portrait

About five and a half minutes: import a part, set material, paint sit and load, fill the mesh, and read the heatmap – on device, no account.

Portrait screen recording. Tap play; no sound track.

See Breakspot

From import to hotspot on this iPhone

Swipe through the flow: import, material, hold, load, stress heatmap, then a PDF report.

Breakspot: Import your print - STL, 3MF, OBJ, PLY, AMF
Breakspot: Pick filament and infill
Breakspot: Mark where it sits
Breakspot: Aim the load
Breakspot: See stress hotspots
Breakspot: Share a strength report PDF

Scroll sideways to see each step.

Breakspot features

STL strength estimate on iPhone: paint, heatmap, PDF

An iPhone 3D print strength estimate with paint tools, field switching, a PDF Report, and no cloud upload.

No obvious hotspot Uncertain Likely problem
  • STL, 3MF, OBJ, PLY, and AMF import from Files
  • Does not fetch models from the web
  • Bundled demo shelf bracket that stays free, plus extra practice parts
  • PLA, PETG, ABS, and resin with infill
  • Paint hold (blue) and load (orange) on the 3D part
  • Aim the load; hang, push, and gravity presets
  • Rotate until the grid is the floor
  • Coarse, Standard, or Fine tetrahedron density
  • On-device linear elastic Check – a finite element estimate, not Autodesk Fusion or Ansys
  • Von Mises, principal, Z-tension, and displacement fields
  • Deform More and a PDF Report after Check
  • Qualitative bands instead of a fake breaking load
  • No account and no upload to Kick-Start.ai

Who Breakspot is for

For the person about to print a functional part

Hooks, mounts, and brackets

Check a hook, mount, or bracket before you spend filament and time. Export the file you already have onto this iPhone.

On the phone, not in CAD

Breakspot is not Autodesk Fusion, Ansys, or a classroom 2D FEA tool. It is a fast on-device estimate from a print file on this iPhone.

Not a certificate

Results are bands plus a relative heatmap. They are not a laboratory test and not a certificate that a part is safe.

Not for safety-critical use

Do not use Breakspot for children’s products, firearms, climbing, aviation, medical devices, or any safety-critical use.

Print-and-see vs CAD vs Breakspot

A pocket estimate, not a snapped print and not desktop CAD

Breakspot is an on-device estimate from the file you already export. It is not Autodesk Fusion, Ansys, or a lab.

Print and hope

You find out a hook is weak after it snaps on the wall. Filament, time, and another print cycle gone.

Desktop CAD simulation

Desktop tools such as Autodesk Fusion or Ansys are the place for a detailed study. They are not in your pocket, and they are not this app.

Breakspot on iPhone

Import the print file, paint hold and load, and see likely hotspots on this iPhone. On-device linear estimate. Demo shelf bracket free.

Privacy

Kick-Start.ai does not receive your parts

Breakspot stores and processes your meshes on your device. Kick-Start.ai does not require an account and does not upload your parts to its servers. iCloud or Finder backups, and anything you share, follow Apple or the app you pick.

  • No Breakspot account
  • No upload to Kick-Start.ai
  • No advertising trackers in the app
  • Purchases use Apple StoreKit only

Read the full Breakspot Privacy Policy. This covers the iOS app, not every cookie on kick-start.ai.

Free vs Breakspot Pro

One free Check, then Breakspot Pro

The demo shelf bracket is always free. Your first Check on a part you import is free too. Subscribe monthly or yearly if you keep checking your own prints.

Free

$0

  • Demo shelf bracket always free
  • One Check on a part you import
  • Paint hold and load
  • Heatmap and qualitative bands
  • On this iPhone – no account

Monthly

$4.99/mo

  • Unlimited analyses while active
  • Your own STL, 3MF, OBJ, PLY, AMF
  • Same on-device solver
  • Cancel anytime in Apple ID Settings

Yearly

$34.99/yr

  • Best value – about 7 months of Monthly
  • Unlimited analyses for the year
  • Your own STL, 3MF, OBJ, PLY, AMF
  • Cancel anytime in Apple ID Settings

Breakspot Pro is an auto-renewing App Store subscription (Monthly or Yearly). In the U.S. App Store the listed prices are $4.99/month and $34.99/year USD; other regions follow Apple’s local price. Payment, billing, and renewals are charged to your Apple ID. Manage or cancel in Apple ID subscription settings. Feature availability and pricing follow the live App Store listing and may change over time. Privacy Policy and Terms of Use.

Download on the App Store Read the FAQ

FAQ

3D print strength estimate FAQ

What is Breakspot?

Breakspot is an iOS app from Kick-Start.ai that estimates likely hotspots on a 3D print on iPhone. Import an STL, 3MF, OBJ, PLY, or AMF, paint where the part sits and where the load lands, and see a relative heatmap. On-device linear estimate – not a lab test. No account. Parts are not uploaded to Kick-Start.ai servers.

Will Breakspot tell me if my 3D print will snap?

Breakspot shows likely hotspots and a band – no obvious hotspot, uncertain, or likely problem. That is an on-device linear estimate, not a predicted breaking load and not a lab test. If a result and the real world disagree, trust the real world.

What files can I import?

Export STL, 3MF, OBJ, PLY, or AMF onto this iPhone, then Import from Files. Breakspot does not fetch models from the web. STL, OBJ, and PLY ask millimeters or inches on import; 3MF and AMF already carry units.

Does Breakspot upload my parts?

No. Breakspot does not require an account and does not upload meshes, results, or identifiers to Kick-Start.ai servers. Import, paint, and Check run on your iPhone.

Is Breakspot a lab test?

No. Breakspot is an on-device linear elastic estimate. Results are qualitative bands – no obvious hotspot, uncertain, or likely problem – plus a relative heatmap. They are not a predicted breaking load, not a laboratory test, and not a certificate that a part is safe.

Do I need an account?

No. You can import a part, paint hold and load, and run Check without creating a Breakspot account. Optional Breakspot Pro purchases are handled by Apple and restore with your Apple ID.

What’s free vs Breakspot Pro?

The demo shelf bracket is always free. You also get one Check on a part you import. Breakspot Pro unlocks unlimited analyses while a monthly or yearly subscription is active. Auto-renews until you cancel in Apple ID Settings.

How much does Breakspot Pro cost?

Breakspot Pro is an auto-renewing App Store subscription. In the U.S. App Store the listed prices are $4.99 per month USD and $34.99 per year USD; other regions follow Apple’s local price. Payment, billing, and renewals are handled by Apple. Manage or cancel in your Apple ID subscription settings.

Who publishes Breakspot?

Kickstart Ai LLC, doing business as Kick-Start.ai, publishes Breakspot. For questions, use the Kick-Start.ai contact webpage at https://kick-start.ai/contact/ or email info@kick-start.ai.

Is Breakspot finite element analysis (FEM)?

Yes – an on-device linear elastic finite element estimate for everyday prints – hooks, mounts, and brackets. It is not Autodesk Fusion, Ansys, or a professional engineering service. Results are qualitative bands plus a relative heatmap.

When can I download Breakspot?

Breakspot is free on the App Store for iPhone and iPad. Download Breakspot. The demo shelf bracket stays free; one Check on a part you import is free. Breakspot Pro unlocks unlimited analyses.

Does Breakspot work on iPad?

Yes. Breakspot is built for iPhone and iPad (iOS 18 / iPadOS 18). Import, paint, and Check run on the device. On Mac it may appear as Designed for iPad; that build is not separately verified for macOS.

Publisher

About Kickstart Ai LLC

Breakspot is published by Kickstart Ai LLC, doing business as Kick-Start.ai . This page is the official product overview for the iOS app, including features, privacy posture, and Pro pricing.

Email: info@kick-start.ai
Contact webpage: kick-start.ai/contact
App Store: apps.apple.com/us/app/breakspot
Privacy: Breakspot Privacy Policy
Terms: Breakspot Terms of Use
App Store purchases: Apple Standard EULA

Free on the App Store

See likely hotspots on this iPhone

Import an STL, paint hold and load, get a relative heatmap. On-device linear estimate, not a lab test. No account. Demo free.

Download on the App Store Terms of Use

Breakspot is an on-device linear estimate for everyday prints – hooks, mounts, and brackets. It is not a professional engineering service, not a laboratory test, and not a certificate that a part is safe. Do not use it for children’s products, firearms, climbing, aviation, medical devices, or any safety-critical use. Feature availability and pricing follow the live App Store listing and may change over time.

App Store Privacy Policy Terms of Use Contact