# DEM vs Zofia

The clearest difference is update cadence: Zofia at every 2 days against DEM's every 6 months. DEM's advantage is iOS requirement (13.0 vs 16.0). On price, review sentiment, ads 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.

DEM ships an update every 6 months, Zofia every 2 days. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | DEM | Zofia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/zofia/id6769819073/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 days** |
| Monetization | Free | Free |
| Size | 4 MB | 26 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [EL COLEGIO DE MEXICO, A. C.](https://appshunter.io/developer/1540361702) | [Carlos Cerritos Lira](https://appshunter.io/developer/1896691023) |

## What reviewers say

### DEM

[App page](https://appshunter.io/ios/app/dem/id1540361700)

This app provides a comprehensive dictionary of Mexican Spanish, based on extensive research of vocabulary used in Mexico since 1921. It includes definitions, spelling rules, prefixes, suffixes, number writing, and demonyms, all accessible offline.

**Highlights:** Mexican Spanish vocabulary definitions, Spelling rules, Prefixes and suffixes, Number writing guidelines, List of demonyms, Offline access to all features

**Features:** macOS Compatibility

**In-app purchases:** none


### Zofia

[App page](https://appshunter.io/ios/app/zofia/id6769819073)

Prepare for university entrance exams with thousands of practice questions, detailed explanations, and study tools. Connect with a community of students and educators for collaborative learning and exam simulation.

**Highlights:** Practice questions by subject, Exam simulators, Detailed explanations, Flashcards, Create and share custom exams, Wiki for topic explanations, Progress tracking

**In-app purchases:** none


## Frequently asked questions

### Is DEM free?

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

### Is Zofia free?

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

### Do DEM or Zofia have ads?

Neither DEM nor Zofia shows ads.

### Which is updated more often, DEM or Zofia?

DEM ships an update every 6 months, and Zofia every 2 days. Most recently, DEM was updated on October 29, 2026 and Zofia on October 28, 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.*