# SUN vs InfoMemo

The clearest difference is update cadence: InfoMemo at every 10 days against SUN's every 14 months. InfoMemo also leads on device support. SUN's advantage is iOS requirement (13.4 vs 17.0). On price and in-app purchases there is nothing between them.

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

SUN ships an update every 14 months, InfoMemo every 10 days. The most recent releases landed on November 12, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | SUN | InfoMemo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | Every 14 months | **Every 10 days** |
| Size | 24 MB | 63 MB |
| Requires iOS | **13.4** | 17.0 |
| Devices | — | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [SUN-TEC CORPORATION](https://appshunter.io/developer/1711446511) | [Enso webworks private limited](https://appshunter.io/developer/1687255524) |

## What reviewers say

### SUN

[App page](https://appshunter.io/ios/app/sun-tec/id6469055994)

**In-app purchases:** none


### InfoMemo

[App page](https://appshunter.io/ios/app/infomemo-secure-mail/id6757377301)

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

**In-app purchases:** none


## Frequently asked questions

### Is SUN free?

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

### Is InfoMemo free?

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

### Which is updated more often, SUN or InfoMemo?

SUN ships an update every 14 months, and InfoMemo every 10 days. Most recently, SUN was updated on November 12, 2026 and InfoMemo 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.*