# D1 System vs AlbaDo

The clearest difference is update cadence: AlbaDo at every 8 days against D1 System's every 2 months. D1 System's advantage is iOS requirement (8.0 vs 16). 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.

D1 System ships an update every 2 months, AlbaDo every 8 days. The most recent releases landed on October 17, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | D1 System | AlbaDo |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 8 days** |
| Monetization | Free | — |
| Size | 6 MB | 25 MB |
| Requires iOS | **8.0** | 16 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [China Security & Fire IOT Sensing Co., Ltd.](https://appshunter.io/developer/914724038) | [SYNTERA Co.,Ltd](https://appshunter.io/developer/1820571052) |

## What reviewers say

### D1 System

[App page](https://appshunter.io/ios/app/d1-system/id914724035)

This app allows users to remotely manage an SMS alarm system. It enables sending text messages for home protection, configuring alarm host parameters, and setting zone and RFID card names. Users can also manage SMS codes.

**Highlights:** Send SMS for home protection, Configure alarm host parameters, Set zone names, Set RFID card names, Manage SMS codes

**Features:** macOS Compatibility

**In-app purchases:** none


### AlbaDo

[App page](https://appshunter.io/ios/app/albado/id6747278217)

**In-app purchases:** none


## Frequently asked questions

### Is D1 System free?

D1 System is free to download, with no in-app purchases.

### Is AlbaDo free?

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

### Do D1 System or AlbaDo have ads?

Neither D1 System nor AlbaDo shows ads.

### Which is updated more often, D1 System or AlbaDo?

D1 System ships an update every 2 months, and AlbaDo every 8 days. Most recently, D1 System was updated on October 17, 2026 and AlbaDo on October 7, 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.*