# SL Memory vs Boat Units

The clearest difference is update cadence: Boat Units at every 3 days against SL Memory's every 3 months. SL Memory's advantage is iOS requirement (9.0 vs 18.6). 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.

SL Memory ships an update every 3 months, Boat Units every 3 days. The most recent releases landed on October 13, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | SL Memory | Boat Units |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (2 ratings)](https://appshunter.io/ios/app/sl-memory/id1066084698/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 41 MB | 7 MB |
| Requires iOS | **9.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Shiling Digital Technology.co., Ltd](https://appshunter.io/developer/1137419218) | [Marcus Johansson](https://appshunter.io/developer/1659201231) |

## What reviewers say

### SL Memory

[App page](https://appshunter.io/ios/app/sl-memory/id1066084698)

Expand your iOS device's storage without Wi-Fi or network. Seamlessly transfer, view, and manage files between your iOS devices and computers. Enjoy direct media playback and secure file encryption.

**Highlights:** Two-way storage between iOS and PC/Mac, Wi-Fi and network independent, Seamless file transfer, viewing, and sharing, Direct media playback, File encryption, Contacts backup and restore

**Features:** macOS Compatibility

**In-app purchases:** none


### Boat Units

[App page](https://appshunter.io/ios/app/boat-units/id1659201229)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SL Memory free?

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

### Is Boat Units free?

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

### Do SL Memory or Boat Units have ads?

Neither SL Memory nor Boat Units shows ads.

### Which is updated more often, SL Memory or Boat Units?

SL Memory ships an update every 3 months, and Boat Units every 3 days. Most recently, SL Memory was updated on October 13, 2026 and Boat Units on September 26, 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.*