# Article Zero vs ER

The clearest difference is in-app purchases: Article Zero at none against ER's 2. Article Zero also leads on update cadence (daily vs every 6 days) and ratings volume (7 vs 1). ER's advantage is ads (none vs shown). On price, rating, device support and iOS requirement there is nothing between them.

Both are free to download. ER sells 2 in-app purchases, starting at $2.99 per month. Article Zero asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Article Zero against 5.0 for ER. That said, the two scores are not equally well evidenced: Article Zero has 7 ratings behind it against 1, so its average is the more settled of the two.

Article Zero ships an update daily, ER every 6 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Article Zero | ER |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (7 ratings)](https://appshunter.io/ios/app/article-zero/id6749597284/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/er-emergency-response/id6757521646/reviews) |
| Number of ratings | **7** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Daily** | Every 6 days |
| Monetization | Ad-supported | — |
| Size | 100 MB | 163 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Lucas Simmons](https://appshunter.io/developer/1831357557) | [Legacy Studio App](https://appshunter.io/developer/1867434398) |

## What reviewers say

### Article Zero

[App page](https://appshunter.io/ios/app/article-zero/id6749597284)

This app provides service members and their families with essential information on military rights, processes, and support. It covers victim, witness, and supervisor roles, UCMJ articles, jurisdictional breakdowns, and counterintelligence awareness. Includes verified base contacts and case studies for practical understanding.

**Highlights:** Victim, Witness, Subject Rights, Supervisor Obligations, UCMJ Articles & Summaries, Jurisdictional Breakdown, Counterintelligence Awareness, Verified Base Contacts Directory, Case Studies & Knowledge Points

**Features:** macOS Compatibility

**In-app purchases:** none


### ER

[App page](https://appshunter.io/ios/app/er-emergency-response/id6757521646)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $2.99 | per month |
| Premium | $24.99 | per year |


## Frequently asked questions

### Is Article Zero free?

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

### Is ER free?

ER is free to download, with in-app purchases available.

### Which has better reviews, Article Zero or ER?

Article Zero and ER are both rated 5.0 out of 5 on the App Store, from 7 and 1 ratings respectively.

### Do Article Zero or ER have ads?

Article Zero shows ads; ER does not.

### Which is updated more often, Article Zero or ER?

Article Zero ships an update daily, and ER every 6 days. Most recently, Article Zero was updated on October 24, 2026 and ER on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*