# JRI MySirius Alert vs DCO

JRI MySirius Alert and DCO are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

JRI MySirius Alert ships an update every 17 months, DCO every 12 months. The most recent releases landed on October 14, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | JRI MySirius Alert | DCO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 12 months** |
| Size | 21 MB | 46 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [JRI](https://appshunter.io/developer/602187957) | [Diocese Copte Orthodoxe de Paris et du Nord de la France](https://appshunter.io/developer/1650668558) |

## What reviewers say

### JRI MySirius Alert

[App page](https://appshunter.io/ios/app/jri-mysirius-alert/id1554099371)

**Features:** macOS Compatibility

**In-app purchases:** none


### DCO

[App page](https://appshunter.io/ios/app/dco/id6747406161)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is JRI MySirius Alert free?

JRI MySirius Alert is free to download, with no in-app purchases.

### Is DCO free?

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

### Do JRI MySirius Alert or DCO have ads?

Neither JRI MySirius Alert nor DCO shows ads.

### Which is updated more often, JRI MySirius Alert or DCO?

JRI MySirius Alert ships an update every 17 months, and DCO every 12 months. Most recently, JRI MySirius Alert was updated on October 14, 2026 and DCO on October 21, 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.*