Comparison

Cury vs 3D Topology Optimizer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Cury

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Total Scent Control. Smarter Living. Cury transforms your smart diffuser into a personalized wellness experience—combining high-end fragrance, natural repellent, and full home automation in one elegant system. Whether you’re using Cury solo or as part of a connected home, it’s designed to just work. With the Cury App, you can: - Control two bottles at once – fragrance and repellent, separately or together - Adjust scent intensity for any time of day or room - Customize ambient light with color and brightness controls - Create detailed schedules for different moods, moments, or routines - Track liquid levels and get notified before they run out - Shop and manage subscriptions directly in the app - Use voice control and integrate with smart systems like Alexa, Google Assistant, Home Assistant, and Shelly Cury connects via Wi-Fi and Bluetooth, work with or without cloud access, and support local smart automations for reliable performance. All fragrances are cruelty-free, made in Europe, and come in smart bottles with built-in recognition chips. Cury devices are built with advanced Shelly technology and support both Wi-Fi and Bluetooth. They integrate with popular smart home systems and continue to operate even without cloud access. The diffuser is quiet, safe for use around children and pets, and designed to run 24/7 without sprays, flames, or mess. Fragrances and repellents are crafted in Europe with care, using cruelty-free formulas. Each bottle includes a smart chip that enables the app to recognize the scent and monitor usage for optimal performance. Download the Cury App today and take full control of how your home feels—anytime, anywhere. Cury requires an account to securely connect and control your device via cloud services. Choose smart. Choose simple. Choose Cury.

About

3D Topology Optimizer

Features
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3D Topology Optimizer reduces the weight of a 3D part without sacrificing its strength — entirely on your device, with no cloud upload required. Load an STL model, mark contact surfaces, applied loads (forces and moments), and functionally important faces that must never change. The app then runs a real finite-element simulation and a SIMP topology optimization directly on iPhone, iPad, or Mac to determine which material actually contributes to strength and which can be removed. FEATURES • Automatic hole detection — cylindrical bores are recognized and automatically protected from the optimizer • Calculated entirely on-device — your geometry and load cases never leave your device • High-resolution STL export for 3D printing or CNC machining • Built-in parametric templates (bushings, brackets) to get started without any CAD file • Wireframe and shaded 3D viewer with axis indicators for precise face tagging WHO IT'S FOR Engineers, product designers, makers, and students who design 3D-printed or CNC-machined parts and want a fast, private way to see where material can be safely removed before committing to a print or a machining run. All calculations are a simplified, linear finite-element approximation and do not replace certified FEA software or review by a qualified engineer. Always verify results independently before manufacturing load-bearing parts.

Screenshots

Cury4 screens
3D Topology Optimizer2 screens

Verdict

The call

The clearest difference is in-app purchases: Cury at none against 3D Topology Optimizer's 1. Cury also leads on ads (none vs shown) and iOS requirement (15.6 vs 17.0). 3D Topology Optimizer's advantage is update cadence (every 6 days vs every 2 months). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. 3D Topology Optimizer sells 1 one-off in-app purchase. Cury asks for nothing beyond the download.

UpkeepUpdate frequency

Cury ships an update every 2 months, 3D Topology Optimizer every 6 days. The most recent releases landed on November 12, 2026 and November 10, 2026 respectively.

Scorecard4 real differences · 2 level
Cury versus 3D Topology Optimizer: the parameters behind the verdict, then further details
ParameterCury3D Topology Optimizer
PriceFreeFree
Update frequencyEvery 2 monthsEvery 6 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhone, iPodiPhone, iPad, Mac — better
Requires iOS15.6 — better17.0
Further details — not scored
Size76 MB17 MB
Age rating4+4+
DeveloperSHELLY EUROPE EOODMaximilian Benchieb

In-app purchases

None

Cury

No in-app purchases

1 purchases

3D Topology Optimizer

One-time1
  • Topology Export$0.99

Questions

Is Cury free?
Cury is free to download, with no in-app purchases.
Is 3D Topology Optimizer free?
3D Topology Optimizer is free to download, with in-app purchases available.
Do Cury or 3D Topology Optimizer have ads?
3D Topology Optimizer shows ads; Cury does not.
Which is updated more often, Cury or 3D Topology Optimizer?
Cury ships an update every 2 months, and 3D Topology Optimizer every 6 days. Most recently, Cury was updated on November 12, 2026 and 3D Topology Optimizer on November 10, 2026.

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