# Palabros vs f(x) Calc

The clearest difference is monetization model: f(x) Calc at free against Palabros's freemium. f(x) Calc also leads on iOS requirement (16.6 vs 26.0). Palabros's advantage is update cadence (every 3 days vs every 10 days) and ratings volume (16 vs 1). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Palabros sells 6 in-app purchases, starting at $0.99 per 7 days and f(x) Calc sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for Palabros against 5.0 for f(x) Calc. That said, the two scores are not equally well evidenced: Palabros has 16 ratings behind it against 1, so its average is the more settled of the two.

Palabros ships an update every 3 days, f(x) Calc every 10 days. The most recent releases landed on October 14, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Palabros | f(x) Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (16 ratings)](https://appshunter.io/ios/app/palabros-dictionary/id6758098070/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fx-calc/id6760609257/reviews)** |
| Number of ratings | **16** | 1 |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 10 days |
| Monetization | Freemium | **Free** |
| Size | 178 MB | 5 MB |
| Requires iOS | 26.0 | **16.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nacho Cerrato Ruiz](https://appshunter.io/developer/1870841391) | [David Russell](https://appshunter.io/developer/1104864276) |

## What reviewers say

### Palabros

[App page](https://appshunter.io/ios/app/palabros-dictionary/id6758098070)

This app helps you understand and remember new Spanish and English vocabulary. Look up words, save them, and review using engaging games. It offers widgets for quick access and a word of the day feature.

**Highlights:** Spanish and English word lookup, Official definitions and explanations, Save words for review, 4 vocabulary review game modes, Home and Lock Screen widgets, Word of the day, Bilingual mode and pronunciation

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Palabros Weekly | $0.99 | per 7 days |
| Palabros Month | $2.99 | per month |
| Palabros Annual | $14.99 | per year |
| Palabros Pro | $39.99 | one-time |
| Palabros Pro (Support) | $49.99 | one-time |
| Palabros Pro Patron | $99.99 | one-time |


### f(x) Calc

[App page](https://appshunter.io/ios/app/fx-calc/id6760609257)

A full-featured scientific calculator designed for math and science students. It offers natural math entry and includes built-in examples to aid learning. A simplified Junior mode is available for everyday use.

**Highlights:** Natural Maths entry, Built-in learning examples, Junior mode for everyday use, Ideal for math and science study, Full-featured scientific calculator

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | Free | one-time |


## Frequently asked questions

### Is Palabros free?

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

### Is f(x) Calc free?

f(x) Calc is free to download, with in-app purchases available.

### Which has better reviews, Palabros or f(x) Calc?

f(x) Calc is rated higher. Palabros averages 4.9 out of 5 from 16 ratings, while f(x) Calc averages 5.0 from 1 ratings.

### Do Palabros or f(x) Calc have ads?

Neither Palabros nor f(x) Calc shows ads.

### Which is updated more often, Palabros or f(x) Calc?

Palabros ships an update every 3 days, and f(x) Calc every 10 days. Most recently, Palabros was updated on October 14, 2026 and f(x) Calc on October 10, 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.*