# Authenticator vs NoteCalc

The clearest difference is update cadence: NoteCalc at every 5 days against Authenticator's every 2 months. NoteCalc also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Authenticator sells 4 in-app purchases, starting at $0.99 per 7 days and NoteCalc sells 6 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Authenticator ships an update every 2 months, NoteCalc every 5 days. The most recent releases landed on October 4, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Authenticator | NoteCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (10 ratings)](https://appshunter.io/ios/app/notecalc-notepad-calculator/id6737917127/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 54 MB | 82 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 9+ |
| Developer | [Committed Code Ltd](https://appshunter.io/developer/1535330318) | [Nikko Ferwelo](https://appshunter.io/developer/1774984591) |

## What reviewers say

### Authenticator

[App page](https://appshunter.io/ios/app/authenticator-authentic/id6459019787)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Authentic+ | $0.99 | per 7 days |
| Authentic+ | $3.99 | per month |
| Authentic+ | $14.99 | per year |
| Authentic+ | $19.99 | one-time |


### NoteCalc

[App page](https://appshunter.io/ios/app/notecalc-notepad-calculator/id6737917127)

Seamlessly blend note-taking with real-time calculations. Capture ideas, track expenses, and create lists with instant results as you type or speak. Offers smart input features like voice notes and document scanning for enhanced productivity.

**Highlights:** Simultaneous note-taking and calculation, Instant results as you type, Voice note input, Document and receipt scanning, Expense and budget tracking, Shopping list creation with automatic totals

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Smart Notes Monthly | $1.99 | per month |
| Smart Notes Monthly | $2.99 | per month |
| Note Calc Yearly | $5.99 | per year |
| Smart Notes Yearly | $7.99 | per year |
| Smart Notes Lifetime | $5.99 | one-time |
| Unlock Lifetime | $12.99 | one-time |


## Frequently asked questions

### Is Authenticator free?

Authenticator is free to download, with in-app purchases available.

### Is NoteCalc free?

NoteCalc is free to download, with in-app purchases available.

### Do Authenticator or NoteCalc have ads?

Neither Authenticator nor NoteCalc shows ads.

### Which is updated more often, Authenticator or NoteCalc?

Authenticator ships an update every 2 months, and NoteCalc every 5 days. Most recently, Authenticator was updated on October 4, 2026 and NoteCalc on October 6, 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.*