# Flexi vs EELU

The clearest difference is in-app purchases: EELU at none against Flexi's 4. EELU also leads on iOS requirement (15.0 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Flexi sells 4 in-app purchases, starting at $5.99 per month. EELU asks for nothing beyond the download.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 25, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Flexi | EELU |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (138 ratings)](https://appshunter.io/ios/app/flexi-vocabulary-flashcards/id6499282610/reviews)** | — |
| Number of ratings | **138** | — |
| Positive reviews | 76.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | Freemium | — |
| Size | 73 MB | 33 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Tomer Beilinson](https://appshunter.io/developer/1743082463) | [Mohamed Elkerm](https://appshunter.io/developer/6778955983) |

## What reviewers say

### Flexi

[App page](https://appshunter.io/ios/app/flexi-vocabulary-flashcards/id6499282610)

Build your vocabulary and master new languages with an AI-powered flashcard system. Create personalized cards, get instant translations and definitions, and utilize spaced repetition for effective long-term memorization. Supports numerous languages and offers offline study options.

**Highlights:** Personalized flashcard creation, AI-powered translations and definitions, Spaced repetition system, Text-to-speech pronunciation, Offline study mode, Progress tracking, CSV import/export

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $5.99 | per month |
| Premium Monthly | $5.99 | per month |
| Premium Annual | $29.99 | per year |
| Premium Lifetime | $99.99 | one-time |


### EELU

[App page](https://appshunter.io/ios/app/eelu/id6780884885)

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

**In-app purchases:** none


## Frequently asked questions

### Is Flexi free?

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

### Is EELU free?

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

### Do Flexi or EELU have ads?

Neither Flexi nor EELU shows ads.

### Which is updated more often, Flexi or EELU?

Flexi ships an update weekly, and EELU weekly. Most recently, Flexi was updated on October 25, 2026 and EELU on October 13, 2026.

---

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