# Quick block notes vs MathCareer Sigma

The clearest difference is in-app purchases: MathCareer Sigma at none against Quick block notes's 1. MathCareer Sigma also leads on ads (none vs shown) and update cadence (every 3 days vs every 8 months). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. Quick block notes sells 1 one-off in-app purchase. MathCareer Sigma asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Quick block notes against 5.0 for MathCareer Sigma. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Quick block notes ships an update every 8 months, MathCareer Sigma every 3 days. The most recent releases landed on October 11, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Quick block notes | MathCareer Sigma |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/quick-block-notes-sketches/id957381251/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/mathcareer-sigma/id6759996998/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 22.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 8 months | **Every 3 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 28 MB | 44 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Intelectiva](https://appshunter.io/developer/760299566) | [Yifan WANG](https://appshunter.io/developer/1881957259) |

## What reviewers say

### Quick block notes

[App page](https://appshunter.io/ios/app/quick-block-notes-sketches/id957381251)

Capture thoughts, sketch ideas, and jot down lists with this creative notes app. Personalize your notes with various colors, fonts, and backgrounds. Easily share your creations and upgrade for an ad-free experience.

**Highlights:** Personalize notes with colors, fonts, and brush styles, Variety of background options, Tools for erasing, undoing, and saving, Add images from gallery or take photos, Save and share notes instantly

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $3.99 | one-time |


### MathCareer Sigma

[App page](https://appshunter.io/ios/app/mathcareer-sigma/id6759996998)

This app helps mathematics students and faculty find jobs and advance their careers. It aggregates job postings daily and provides a platform for professional networking and sharing career tips. Features include a personal QR code generator for easy profile sharing.

**Highlights:** Daily math job postings aggregation, Professional community for networking, Career tips exchange, Personal QR code generator, Profile sharing for connections

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Quick block notes free?

Quick block notes is free to download, with in-app purchases available.

### Is MathCareer Sigma free?

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

### Which has better reviews, Quick block notes or MathCareer Sigma?

Quick block notes and MathCareer Sigma are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Quick block notes or MathCareer Sigma have ads?

Quick block notes shows ads; MathCareer Sigma does not.

### Which is updated more often, Quick block notes or MathCareer Sigma?

Quick block notes ships an update every 8 months, and MathCareer Sigma every 3 days. Most recently, Quick block notes was updated on October 11, 2026 and MathCareer Sigma on October 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.*