# Knowdex vs ferba

The clearest difference is rating: ferba at 5.0 against Knowdex's 3.8. ferba also leads on iOS requirement (15.5 vs 18.0). Knowdex's advantage is monetization model (free vs freemium) and ratings volume (4 vs 1). On price, update cadence, 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.

ferba holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Knowdex ships an update every 2 months, ferba monthly. The most recent releases landed on September 22, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Knowdex | ferba |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (4 ratings)](https://appshunter.io/ios/app/knowdex/id6755147084/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ferba/id6781591997/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | **Free** | Freemium |
| Size | 80 MB | 29 MB |
| Requires iOS | 18.0 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Salar Abdulhadi](https://appshunter.io/developer/1694666445) | [Suha Alkhoury](https://appshunter.io/developer/1704562575) |

## What reviewers say

### Knowdex

[App page](https://appshunter.io/ios/app/knowdex/id6755147084)

This educational platform offers video lessons from expert professors in fields like pharmacy, medicine, and science. It features interactive quizzes to track progress and a direct messaging system for student-doctor support. Learning is made more engaging and flexible.

**Highlights:** Expert-led video lessons, Interactive quizzes, Progress tracking, Direct messaging with professors, Multi-disciplinary learning

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

**In-app purchases:** none


### ferba

[App page](https://appshunter.io/ios/app/ferba/id6781591997)

Learn English from scratch with fun, game-like lessons designed for Kurdish speakers. Progress through alphabet, numbers, and real-world vocabulary with interactive exercises and clear audio. Track your learning with XP and streaks.

**Highlights:** Interactive learning methods (flashcards, matching, writing), Clear audio pronunciation for every word, Progress tracking with XP and streaks, Leaderboards for comparison with other learners, Review of difficult words, Full Kurdish interface (right-to-left)

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

**In-app purchases:** none


## Frequently asked questions

### Is Knowdex free?

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

### Is ferba free?

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

### Which has better reviews, Knowdex or ferba?

ferba is rated higher. Knowdex averages 3.8 out of 5 from 4 ratings, while ferba averages 5.0 from 1 ratings.

### Do Knowdex or ferba have ads?

Neither Knowdex nor ferba shows ads.

### Which is updated more often, Knowdex or ferba?

Knowdex ships an update every 2 months, and ferba monthly. Most recently, Knowdex was updated on September 22, 2026 and ferba on October 4, 2026.

---

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