Y+ Calculator vs Knote
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Y+ Calculator
This app calculates the necessary grid spacing for computational fluid dynamics (CFD) simulations. It helps engineers determine near-wall cell height for accurate viscous flow computations. Supports both SI and Imperial units.
- Calculate grid spacing for target y+ values
- Supports viscous CFD computations
- Works in SI or Imperial units
- Resets to sea-level conditions
- Based on established fluid mechanics theory
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Y+ Calculator is a handy tool for calculating the grid spacing at a wall to achieve a target y+ value for viscous computational fluid dynamics (CFD) computations. Simply specify the flow conditions, the desired y+ value, and compute your grid spacing. If you are an engineer running viscous CFD computations, achieving a target value for y+ in your grid is essential for both resolved and wall function grids for accurate results. Save time by computing your near-wall cell height for the boundary layer before generating your grid. The Y+ Calculator works in either SI or Imperial units and quickly resets to sea-level conditions. This utility is brought to you by Cadence Design Systems. Note: Computations are based on flat-plate boundary layer theory from Frank M. White’s Fluid Mechanics 5th edition, page 467.
Knote
Record, organize, and secure your audio notes with high quality and ease. Protect your recordings with biometric authentication and share them instantly across platforms. Create nested folders for efficient management of lectures, meetings, and personal moments.
- High-quality audio recording
- Biometric and passcode protection
- Folder and sub-folder organization
- One-click sharing
- Audio visualizer
- Bookmark and filter notes
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The highest quality, maximum secure and organized audio / voice notes ever! Knote is IOS app to record and store your voice notes in the highest quality, maximum safe and organized. In addition, you can protect your voice notes with face id/touch id or passcode, organize them easily, share your voice recordings through one app with the quickest way. User friendly and modern design makes it even easier to capture and share personal notes, classroom lectures, family moments, work meetings, speeches, interviews and more. Furthermore, it makes easy to learn new languages. Features: * Easy Recording * - Easy to record voice with help of one button - Audio visualizer to check real time status of the status of the recording - Choose name of the audio recording or edit it later by simply double tapping on it * Simple listening * - Easily play your voice recordings later with help of integrated full-featured player - Repeat any audio note or play all playlist with help of repeat or shuffle feature on player * Advanced and easily organized * - Bookmark your audio recordings to bring them front and filter by bookmarked voice notes - Share your voice recording on any platform with your friends with help of one click - Delete any note independently - Feature to create folder - You can even create sub-folders within previously created folder to keep your notes more organized - Feature to move subfolder to any previously or new created parent folder - Feature to rename folder or subfolder by double tapping on its name * Protection * - Feature to protect your notes with Face ID, Touch ID or with simply Passcode More about: https://knote.io/
Screenshots
Verdict
The clearest difference is rating: Knote at 5.0 against Y+ Calculator's 3.0. Knote also leads on update cadence (every 3 days vs every 8 months). Y+ Calculator's advantage is iOS requirement (9.0 vs 12.0). On price, ratings volume, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Knote holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Y+ Calculator ships an update every 8 months, Knote every 3 days. The most recent releases landed on October 21, 2026 and October 10, 2026 respectively.
| Parameter | Y+ Calculator | Knote |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 8 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 18 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Cadence Design Systems, Inc. | Rahman Mammadov |
Customer experience
Y+ Calculator
Knote
In-app purchases
Y+ Calculator
No in-app purchases
Knote
No in-app purchases









