# Y+ Calculator vs Knote

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.

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. Both last shipped on October 21, 2026.

## The numbers

| Metric | Y+ Calculator | Knote |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/y-plus-calculator/id650011524/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/knote-organized-voice-notes/id1391372219/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 days** |
| Monetization | Free | Free |
| Size | 18 MB | 28 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cadence Design Systems, Inc.](https://appshunter.io/developer/1318385448) | [Rahman Mammadov](https://appshunter.io/developer/1391372218) |

## What reviewers say

### Y+ Calculator

[App page](https://appshunter.io/ios/app/y-plus-calculator/id650011524)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


### Knote

[App page](https://appshunter.io/ios/app/knote-organized-voice-notes/id1391372219)

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.

**Highlights:** High-quality audio recording, Biometric and passcode protection, Folder and sub-folder organization, One-click sharing, Audio visualizer, Bookmark and filter notes

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Y+ Calculator free?

Y+ Calculator is free to download, with no in-app purchases.

### Is Knote free?

Knote is free to download, with no in-app purchases.

### Which has better reviews, Y+ Calculator or Knote?

Knote is rated higher. Y+ Calculator averages 3.0 out of 5 from 1 ratings, while Knote averages 5.0 from 1 ratings.

### Do Y+ Calculator or Knote have ads?

Neither Y+ Calculator nor Knote shows ads.

### Which is updated more often, Y+ Calculator or Knote?

Y+ Calculator ships an update every 8 months, and Knote every 3 days. Most recently, Y+ Calculator was updated on October 21, 2026 and Knote on October 21, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*