# MNEMONIC vs Déjà Vu

The clearest difference is in-app purchases: Déjà Vu at none against MNEMONIC's 1. MNEMONIC's advantage is update cadence (every 3 days vs weekly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. MNEMONIC sells 1 one-off in-app purchase. Déjà Vu asks for nothing beyond the download.

MNEMONIC ships an update every 3 days, Déjà Vu weekly. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | MNEMONIC | Déjà Vu |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 3 days** | Weekly |
| Size | 189 MB | 10 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 9+ |
| Developer | [CIOCHINARU IONUT-DANIEL PERSOANA FIZICA AUTORIZATA](https://appshunter.io/developer/1886931656) | [Ozgur Baskin](https://appshunter.io/developer/6784824862) |

## What reviewers say

### MNEMONIC

[App page](https://appshunter.io/ios/app/mnemonic-daily-brain-puzzle/id6768977393)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads MNEMONIC: Daily Puzzle | $2.99 | one-time |


### Déjà Vu

[App page](https://appshunter.io/ios/app/deja-vu-same-level/id6786274753)

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

**In-app purchases:** none


## Frequently asked questions

### Is MNEMONIC free?

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

### Is Déjà Vu free?

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

### Do MNEMONIC or Déjà Vu have ads?

Both MNEMONIC and Déjà Vu show ads.

### Which is updated more often, MNEMONIC or Déjà Vu?

MNEMONIC ships an update every 3 days, and Déjà Vu weekly. Most recently, MNEMONIC was updated on October 31, 2026 and Déjà Vu on November 5, 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.*