# Escala de Notas vs Mi UDD

The clearest difference is review sentiment: Escala de Notas at 90% against Mi UDD's 4%. Escala de Notas also leads on rating (4.7 vs 4.0) and iOS requirement (13.0 vs 15.0). Mi UDD's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, ratings volume, update cadence 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.

Escala de Notas holds the better App Store score, 4.7 against 4.0. Both are backed by a comparable volume of ratings — 7 and 4 respectively. Written reviews point the same way: 90% of Escala de Notas's written reviews are positive against 4% of Mi UDD's.

Both ship on a similar rhythm, roughly every 3 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | Escala de Notas | Mi UDD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (7 ratings)](https://appshunter.io/ios/app/escala-de-notas/id569493229/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/mi-udd/id624081383/reviews) |
| Number of ratings | **7** | 4 |
| Positive reviews | **90.5% of reviews** | 3.8% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Ad-supported | **Free** |
| Size | 42 MB | 14 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chalalo](https://appshunter.io/developer/547959614) | [Universidad del Desarrollo](https://appshunter.io/developer/624081386) |

## What reviewers say

### Escala de Notas

[App page](https://appshunter.io/ios/app/escala-de-notas/id569493229)

This app helps educators calculate student averages and generate grading scales with customizable requirements. It also supports calculating PSU scores based on user-defined factors, making it a versatile tool for teachers.

**Highlights:** Generate grading scales, Calculate student averages, Customizable percentage requirements, Calculate PSU scores, Configurable factors for PSU

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Mi UDD

[App page](https://appshunter.io/ios/app/mi-udd/id624081383)

Access your class schedule, book study rooms and sports facilities, and report infrastructure issues. Receive notifications for grades and class changes. Use your virtual ID for campus transportation and services.

**Highlights:** Class schedule access, Study room booking, Sports facility reservation, Infrastructure issue reporting, Virtual ID card, Grade notifications

**In-app purchases:** none


## Frequently asked questions

### Is Escala de Notas free?

Escala de Notas is free to download, with no in-app purchases.

### Is Mi UDD free?

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

### Which has better reviews, Escala de Notas or Mi UDD?

Escala de Notas is rated higher. Escala de Notas averages 4.7 out of 5 from 7 ratings, while Mi UDD averages 4.0 from 4 ratings.

### Do Escala de Notas or Mi UDD have ads?

Escala de Notas shows ads; Mi UDD does not.

### Which is updated more often, Escala de Notas or Mi UDD?

Escala de Notas ships an update every 3 months, and Mi UDD every 3 months. Most recently, Escala de Notas was updated on November 1, 2026 and Mi UDD on November 1, 2026.

---

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