# #Ei vs DejaLu

The clearest difference is update cadence: #Ei at daily against DejaLu's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

#Ei ships an update daily, DejaLu every 3 weeks. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | #Ei | DejaLu |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dejalu/id6760793376/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 41 MB | 30 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Help je klant Holding B.V.](https://appshunter.io/developer/1593395638) | [Implicit Knowledge, LLC](https://appshunter.io/developer/1886270326) |

## What reviewers say

### #Ei

[App page](https://appshunter.io/ios/app/ei/id6758988616)

**Features:** macOS Compatibility

**In-app purchases:** none


### DejaLu

[App page](https://appshunter.io/ios/app/dejalu/id6760793376)

This app helps you prepare to read specific French books by teaching you the vocabulary that appears in them first. It focuses on high-value words tied to the text you want to read, making reading feel less overwhelming and more achievable.

**Highlights:** Targeted vocabulary learning for specific books, Vocabulary-first approach, Short, focused review sessions, Prepares learners for authentic French texts, Motivating goal-oriented learning

**In-app purchases:** none


## Frequently asked questions

### Is #Ei free?

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

### Is DejaLu free?

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

### Do #Ei or DejaLu have ads?

Neither #Ei nor DejaLu shows ads.

### Which is updated more often, #Ei or DejaLu?

#Ei ships an update daily, and DejaLu every 3 weeks. Most recently, #Ei was updated on October 10, 2026 and DejaLu on October 7, 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.*