# Notes Vault vs Calculator for Complex Field

The clearest difference is update cadence: Calculator for Complex Field at fortnightly against Notes Vault's every 2 months. Notes Vault's advantage is iOS requirement (15.0 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Notes Vault against 5.0 for Calculator for Complex Field. Both are backed by a comparable volume of ratings — 5 and 4 respectively.

Notes Vault ships an update every 2 months, Calculator for Complex Field fortnightly. The most recent releases landed on September 18, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | Notes Vault | Calculator for Complex Field |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/notes-vault/id6502246101/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/calculator-for-complex-field/id6502463794/reviews) |
| Number of ratings | **5** | 4 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 10 MB | 1 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Praxticus Mobile Labs LLC](https://appshunter.io/developer/1155766939) | [Jongseung Park](https://appshunter.io/developer/1745560101) |

## What reviewers say

### Notes Vault

[App page](https://appshunter.io/ios/app/notes-vault/id6502246101)

Securely store and organize your personal notes in a private vault. This application offers a straightforward interface for easy note-taking and quick retrieval.

**Highlights:** Secure note vault, Easy note storage, Quick search functionality, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases:** none


### Calculator for Complex Field

[App page](https://appshunter.io/ios/app/calculator-for-complex-field/id6502463794)

Input natural math expressions and get instant results on a separate line, allowing for easy revisions. Save up to 20 inputs and incorporate saved answers into new expressions. Supports complex field calculations with adjustable decimal digits and three output formats.

**Highlights:** Natural math expression input, Automatic result display, Input revision for updated results, Save and reuse up to 20 inputs, Incorporate saved answers into expressions, Complex field calculations, Adjustable decimal digits, Three output formats (Fixed, Scientific, Engineering)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Notes Vault free?

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

### Is Calculator for Complex Field free?

Calculator for Complex Field is free to download, with no in-app purchases.

### Which has better reviews, Notes Vault or Calculator for Complex Field?

Notes Vault and Calculator for Complex Field are both rated 5.0 out of 5 on the App Store, from 5 and 4 ratings respectively.

### Do Notes Vault or Calculator for Complex Field have ads?

Neither Notes Vault nor Calculator for Complex Field shows ads.

### Which is updated more often, Notes Vault or Calculator for Complex Field?

Notes Vault ships an update every 2 months, and Calculator for Complex Field fortnightly. Most recently, Notes Vault was updated on September 18, 2026 and Calculator for Complex Field on June 5, 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.*