# AIS eMemo vs Message Center

The clearest difference is ads: AIS eMemo at none against Message Center's shown. AIS eMemo also leads on iOS requirement (12.0 vs 14.0). On price, update cadence, 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.

AIS eMemo ships an update every 2 months, Message Center every 5 weeks. The most recent releases landed on March 26, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | AIS eMemo | Message Center |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Size | 19 MB | 27 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [MIMO TECH COMPANY LIMITED](https://appshunter.io/developer/611091645) | [WISESIGHT COMPANY LIMITED](https://appshunter.io/developer/1710338587) |

## What reviewers say

### AIS eMemo

[App page](https://appshunter.io/ios/app/ais-ememo/id1499972222)

**Features:** macOS Compatibility

**In-app purchases:** none


### Message Center

[App page](https://appshunter.io/ios/app/message-center/id6444019483)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AIS eMemo free?

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

### Is Message Center free?

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

### Do AIS eMemo or Message Center have ads?

Message Center shows ads; AIS eMemo does not.

### Which is updated more often, AIS eMemo or Message Center?

AIS eMemo ships an update every 2 months, and Message Center every 5 weeks. Most recently, AIS eMemo was updated on March 26, 2026 and Message Center on September 17, 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.*