# My e'sphère by ESTACA vs MEMOrizer app

The clearest difference is in-app purchases: My e'sphère by ESTACA at none against MEMOrizer app's 1. My e'sphère by ESTACA also leads on ads (none vs shown) and iOS requirement (15.0 vs 17.6). MEMOrizer app's advantage is update cadence (daily vs every 12 months). On price and device support there is nothing between them.

Both are free to download. MEMOrizer app sells 1 one-off in-app purchase. My e'sphère by ESTACA asks for nothing beyond the download.

My e'sphère by ESTACA ships an update every 12 months, MEMOrizer app daily. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | My e'sphère by ESTACA | MEMOrizer app |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 12 months | **Daily** |
| Size | 45 MB | 12 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [estaca](https://appshunter.io/developer/1478643799) | [Yu Takahashi](https://appshunter.io/developer/1856470521) |

## What reviewers say

### My e'sphère by ESTACA

[App page](https://appshunter.io/ios/app/my-esphere-by-estaca/id1478643800)

**Features:** macOS Compatibility

**In-app purchases:** none


### MEMOrizer app

[App page](https://appshunter.io/ios/app/memorizer-app/id6755808897)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| メモライザ PRO | $3.99 | one-time |


## Frequently asked questions

### Is My e'sphère by ESTACA free?

My e'sphère by ESTACA is free to download, with no in-app purchases.

### Is MEMOrizer app free?

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

### Do My e'sphère by ESTACA or MEMOrizer app have ads?

MEMOrizer app shows ads; My e'sphère by ESTACA does not.

### Which is updated more often, My e'sphère by ESTACA or MEMOrizer app?

My e'sphère by ESTACA ships an update every 12 months, and MEMOrizer app daily. Most recently, My e'sphère by ESTACA was updated on November 3, 2026 and MEMOrizer app on October 30, 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.*