# Duet SDA vs LALS

The clearest difference is iOS requirement: Duet SDA at 8.0 against LALS's 15.0. On price, update cadence, ads 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.

Duet SDA ships an update fortnightly, LALS monthly. The most recent releases landed on October 6, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Duet SDA | LALS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Size | 58 MB | 27 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [A-SOFT](https://appshunter.io/developer/1450110989) | [VAO S C A NADZIEJKO M MIKAS](https://appshunter.io/developer/1111167766) |

## What reviewers say

### Duet SDA

[App page](https://appshunter.io/ios/app/duet-sda/id1536807148)

**Features:** macOS Compatibility

**In-app purchases:** none


### LALS

[App page](https://appshunter.io/ios/app/lals/id6469695869)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Duet SDA free?

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

### Is LALS free?

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

### Do Duet SDA or LALS have ads?

Neither Duet SDA nor LALS shows ads.

### Which is updated more often, Duet SDA or LALS?

Duet SDA ships an update fortnightly, and LALS monthly. Most recently, Duet SDA was updated on October 6, 2026 and LALS on October 16, 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.*