# Uno Calculator vs Notesnook

The clearest difference is in-app purchases: Uno Calculator at none against Notesnook's 20. Notesnook's advantage is update cadence (every 8 days vs every 5 months) and ratings volume (672 vs 113). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Notesnook sells 17 in-app purchases, starting at $0.99 per month. Uno Calculator asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.6 for Uno Calculator against 4.7 for Notesnook. That said, the two scores are not equally well evidenced: Notesnook has 672 ratings behind it against 113, so its average is the more settled of the two. Written reviews are what separate them: 73% of Uno Calculator's written reviews are positive against 79% of Notesnook's.

Uno Calculator ships an update every 5 months, Notesnook every 8 days. The most recent releases landed on October 7, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Uno Calculator | Notesnook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (113 ratings)](https://appshunter.io/ios/app/uno-calculator/id1464736591/reviews) | **[4.7 (672 ratings)](https://appshunter.io/ios/app/notesnook-private-notepad/id1544027013/reviews)** |
| Number of ratings | 113 | **672** |
| Positive reviews | 73.2% of reviews | **78.8% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 8 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 96 MB | 96 MB |
| Requires iOS | **14.2** | 15.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Uno Platform Inc.](https://appshunter.io/developer/1617866832) | [Streetwriters LLC](https://appshunter.io/developer/1536533660) |

## What reviewers say

### Uno Calculator

[App page](https://appshunter.io/ios/app/uno-calculator/id1464736591)

This app offers a comprehensive suite of calculation tools, handling everything from basic arithmetic to complex unit conversions. It supports measurements for size, temperature, speed, energy, and currency, making it a versatile solution for diverse needs.

**Highlights:** Arithmetic calculations, Unit conversions, Size measurements, Temperature conversions, Speed calculations, Energy calculations, Currency exchange

**In-app purchases:** none

**What reviewers like**

- 💰 Completely free with no ads or in-app purchases
- 🎨 Clean, minimalist, and intuitive user interface
- 🔧 Multiple calculator modes (standard, scientific, programmer)
- 📊 Useful unit conversion features
- 📜 Helpful history and memory panes for tracking calculations

**What reviewers complain about**

- ⌨️ No keyboard input support on Mac or iPad (major recurring complaint)
- 📍 Calculator buttons positioned on left side (inconvenient for right-handed users)
- 📜 History pane cannot be hidden or minimized
- ⏱️ Slower app launch time compared to stock calculator
- 🐢 Laggy performance on macOS with slow button responsiveness

**Reported bugs**

- Standard calculator mode doesn't follow order of operations (1+2*3 = 9 instead of 7)
- Buttons disappear while using on iPad
- Apple Pencil input causes buttons to blend into background
- Slow key responsiveness on macOS
- Numeric keypad input not recognized from Apple keyboard

**Requested features**

- Keyboard input support for Mac and iPad (most requested)
- Copy and paste functionality for results and formulas
- Option to reposition calculator buttons to right side
- Ability to hide or collapse history pane
- Persistent history that saves after app closes


### Notesnook

[App page](https://appshunter.io/ios/app/notesnook-private-notepad/id1544027013)

This open-source app offers secure, encrypted note-taking and organization across all your devices. It features a robust editor, to-do lists, and a private journal with advanced security to protect your personal information.

**Highlights:** Military-grade encryption, Cross-platform synchronization, To-do lists and task management, Private journal with media support, Rich text and Markdown editor, Notebook organization, App lock with fingerprint support

**Features:** Vision Pro support

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Notesnook Pro | $0.99 | per month |
| Notesnook Essential Plan | $1.99 | per month |
| Notesnook Pro | $2.49 | per month |
| Notesnook Pro Plan | $2.99 | per month |
| Notesnook Pro | $4.49 | per month |
| Notesnook Pro | $4.49 | per month |
| Notesnook Pro Plan | $6.99 | per month |
| Notesnook Believer Plan | $8.99 | per month |
| Notesnook Pro | $9.99 | per year |
| Notesnook Essential Plan | $19.99 | per year |
| Notesnook Pro | $24.99 | per year |
| Notesnook Pro Plan | $29.90 | per year |
| Notesnook Pro Yearly | $49.99 | per year |
| Notesnook Pro | $49.99 | per year |
| Notesnook Pro | $49.99 | per year |
| Notesnook Pro Plan | $69.99 | per year |
| Notesnook Believer Plan | $89.99 | per year |

**What reviewers like**

- 🚀 Fast and efficient
- 🔒 Secure and private
- 👍 Clean and intuitive UI
- 👍 Cross-platform compatibility
- 👍 Generous free tier

**What reviewers complain about**

- 🐛 Sync and login issues
- 🐛 Buggy and crashes
- 💰 Expensive premium tier
- 🔒 Lack of free encryption features

**Reported bugs**

- Crashes on launch on older iOS devices
- Sync issues leading to data loss
- Unreliable login and verification process

**Requested features**

- Improved search functionality
- Reminders and calendar integration
- Handwriting and drawing support
- Multilingual support
- Improved table and spreadsheet features


## Frequently asked questions

### Is Uno Calculator free?

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

### Is Notesnook free?

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

### Which has better reviews, Uno Calculator or Notesnook?

Notesnook is rated higher. Uno Calculator averages 4.6 out of 5 from 113 ratings, while Notesnook averages 4.7 from 672 ratings.

### Do Uno Calculator or Notesnook have ads?

Neither Uno Calculator nor Notesnook shows ads.

### Which is updated more often, Uno Calculator or Notesnook?

Uno Calculator ships an update every 5 months, and Notesnook every 8 days. Most recently, Uno Calculator was updated on October 7, 2026 and Notesnook on October 16, 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.*