Quadrant Magnetics Calculator vs Notebox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Quadrant Magnetics Calculator
Calculate magnetic force, permeance coefficient, and demagnetizing factor for various magnet shapes. Input magnet dimensions and grade or Br value to get results based on computer simulation data.
- Calculate magnetic force
- Calculate permeance coefficient
- Calculate demagnetizing factor
- Supports rectangular blocks
- Supports axially magnetized rings
- Supports axially magnetized cylinders
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The Magnetics Calculator provides a mobile APP to conveniently calculate the magnetic force F, the permeance coefficient Pc, and the demagnetizing factor N for the following magnet shapes: - Rectangular blocks - Axially magnetized Rings - Axially magnetized Cylinders The users can get the results by selecting one of three magnet shapes, and one of two steel boundary conditions, as well as inputting the magnet dimensions and magnet grade or the Br value. The calculator uses computer simulation data of magnets interacting with steel plates (cold rolled steel CR1010) that are both thicker and larger than the magnets. Force in actual applications may vary significantly given different boundary conditions. Contact us for your specific needs.
Notebox
This app offers a secure, block-based editor with Markdown support for local note-taking. For cross-device synchronization and real-time updates, a subscription unlocks cloud features with zero-knowledge encryption.
- Zero-knowledge encryption
- Block-based editor
- Markdown support
- Local-only mode
- Cross-device sync
- Real-time updates
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# V2 Ultimate Privacy - All user data is stored with D2D zero-knowledge encryption - Block based flexible editor - Supports Markdown - Local-only use on iPhone, iPad and Mac is FREE. # Subscribe to Sync - Across all devices - Real time - Conflict-Free - Complete Security All personal data is stored in personal iCloud. All synchronization is processed on user device locally. --- privacy policy: https://notebox.cloud/privacy-policy terms of use: https://notebox.cloud/terms-of-use
Screenshots
Verdict
The clearest difference is rating: Quadrant Magnetics Calculator at 5.0 against Notebox's 4.3. Quadrant Magnetics Calculator also leads on in-app purchases (none vs 2) and iOS requirement (15.1 vs 17.0). Notebox's advantage is update cadence (every 2 days vs every 2 months) and ratings volume (6 vs 2). On price, ads 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
Both are free to download. Notebox sells 2 in-app purchases, starting at $1.49 per month. Quadrant Magnetics Calculator asks for nothing beyond the download.
Quadrant Magnetics Calculator holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 2 and 6 respectively.
Quadrant Magnetics Calculator ships an update every 2 months, Notebox every 2 days. The most recent releases landed on October 12, 2026 and September 30, 2026 respectively.
| Parameter | Quadrant Magnetics Calculator | Notebox |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.3 (6 ratings) |
| Positive reviews | — | 85.7% of reviews |
| Number of ratings | 2 | 6 — better |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPod | iPhone, iPad, Mac — better |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 26 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Quadrant International | Guap Inc. |
Customer experience
Quadrant Magnetics Calculator
Notebox
In-app purchases
Quadrant Magnetics Calculator
No in-app purchases
Notebox
- Monthly Cloud Subscription7 Days trial$1.491 Month
- Yearly Cloud Subscription1 Month trial$14.991 Year
Questions
Is Quadrant Magnetics Calculator free?
Is Notebox free?
Which has better reviews, Quadrant Magnetics Calculator or Notebox?
Do Quadrant Magnetics Calculator or Notebox have ads?
Which is updated more often, Quadrant Magnetics Calculator or Notebox?
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