Onshape 3D CAD vs CatGrab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Onshape 3D CAD
A cloud-based 3D CAD platform for professional users to create, edit, and collaborate on designs in real-time from any device. It offers robust parametric modeling tools and seamless data management for teams.
- Real-time collaboration
- Parametric modeling tools
- Cloud-based data management
- Cross-device accessibility
- Integrated commenting
- Version control
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Onshape is a full mechanical CAD platform designed for professional users and extended teams. Create, edit, collaborate, and comment in real time with others from any computer or mobile device with an internet connection (free sign-up required). With Onshape’s secure cloud workspace teams can work together from anywhere on any device without the hassles of file management, IT overhead, and license key distribution, helping engineers focus more on doing their best work. Parametric CAD: • Design parts together in Part Studios with a full suite of parametric modeling tools • Create mechanical Assemblies to capture complex motion Ease of Access: • Create, edit, and view from any computer or mobile device (internet connection required) • Begin a project from one device and seamlessly continue from another Collaboration: • Instantly share your CAD data with your teams and partners. Monitor, change, and revoke permissions at any time • Work together with other users and view changes in real-time as they are made • Use Follow mode to see exactly what your teammate sees and add suggestions using Onshape’s built-in commenting tools Data Management: • Maintain a single source of truth for your data, no more sending around or checking in and out of files • Never worry about losing your work, all of your changes are saved automatically • Explore multiple design ideas in parallel and create professional release and approval processes for your designs Onshape for iOS also features Apple Pencil support for more intuitive sketching, navigation, and precise selection. Onshape proudly supports students and educators free of charge and is available free for non-commercial projects in an open-source public work space. Since Onshape is updated every few weeks with dozens of new features and user-requested enhancements, keep an eye out for update notifications from the Apple App Store.
CatGrab
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CatGrab is a to-do app with a cat, a fish, and a very simple idea: every day, the cat makes a move. Each CatGrab is one action you take today. Each fish is what you are after — a goal you want to land, or a partner you want to chase it with. Add a task, hook it to a fish, and watch the day add up. FIVE STATUSES, NOT JUST A CHECKBOX Real work is rarely just done or not done. Every CatGrab carries one of five states: To Do, Doing, Done, Blocked, and Cancelled. Tap the status circle, or drag the status pill in the editor, and you always know what is moving and what is stuck. A LIST THAT SORTS ITSELF Todo, Upcoming, and Done. Today's items come first, overdue ones sit right behind with the most recent on top, and anything without a time waits quietly at the end. Due today is marked yellow, overdue is marked red. No dragging, no manual ordering. FISH: YOUR GOALS AND YOUR PEOPLE A fish can be the big thing you are working toward, or someone you are working with. Import from Contacts in one step, or create a fish by hand with an avatar and a note. Star the ones that matter and they always come first — in search, and in the picker when you attach a fish to a CatGrab. Open any fish to see everything you have done for it. A CALENDAR THAT SHOWS THE CATCH Zoom from year to month to day. Every day is painted with the status of what happened on it: a single status draws its own icon, several draw a split. Look back at a week, a month, or a whole year and see exactly how much you actually caught. REMINDERS THAT ARRIVE IN TIME Reminders are set as lead time, not a fixed hour — thirty minutes before, two hours before, whatever suits you. The app icon badge counts what is still open and due, so a glance at your Home Screen is enough. TIME IS OPTIONAL Not every task belongs on a clock. Turn the time off and a CatGrab simply lives in your list until you get to it. BUILT FOR IPHONE AND IPAD Everything syncs through your own iCloud account, so your iPhone and iPad stay in step. There is no CatGrab account to create, and your tasks are never uploaded to our servers. Available in English, German, Spanish, French, Italian, Japanese, Korean, Dutch, Simplified Chinese, and Traditional Chinese. FREE, WITH ONE OPTIONAL PURCHASE CatGrab is free to use and supported by ads. An in-app purchase removes them permanently. Every feature described above is included either way — nothing is locked behind the purchase. Make a move. Catch the fish. TERMS & PRIVACY Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://catgrab.youmindhub.com/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Onshape 3D CAD at none against CatGrab's 1. Onshape 3D CAD also leads on ads (none vs shown). CatGrab's advantage is update cadence (every 8 days vs every 3 weeks). On price, device support and iOS requirement 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. CatGrab sells 1 one-off in-app purchase. Onshape 3D CAD asks for nothing beyond the download.
Onshape 3D CAD ships an update every 3 weeks, CatGrab every 8 days. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.
| Parameter | Onshape 3D CAD | CatGrab |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (417 ratings) — better | — |
| Positive reviews | 47.3% of reviews | — |
| Number of ratings | 417 — better | — |
| Update frequency | Every 3 weeks | Every 8 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 77 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | PTC Inc. | 少新 蔡 |
Bugs and requests
Onshape 3D CAD
Reported bugs
5 issues- Frequent crashes and freezes
- Dimensions not visible/editable
- Rotation/view controls unreliable
- Unable to create account
- Incompatible with older devices
Requested features
5 requests- Add keyboard shortcuts
- Improve dimensioning tools
- Allow private file storage
- Optimize for iPad/Apple Pencil
- Provide better documentation/tutorials
CatGrab
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Onshape 3D CAD
No in-app purchases
CatGrab
- No Ads$2.99









