# Orion Sentry vs ArkTool

The clearest difference is review sentiment: Orion Sentry at 67% against ArkTool's 50%. ArkTool's advantage is iOS requirement (11.0 vs 18.5). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Orion Sentry sells 2 in-app purchases, starting at $0.99 per month and ArkTool sells 6 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Orion Sentry ships an update every 9 days, ArkTool every 5 days. The most recent releases landed on October 30, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Orion Sentry | ArkTool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/orion-sentry/id1594469593/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **66.7% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 14 MB | 41 MB |
| Requires iOS | 18.5 | **11.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Lithium ehf](https://appshunter.io/developer/1583999127) | [Dao Cuong](https://appshunter.io/developer/1474510910) |

## What reviewers say

### Orion Sentry

[App page](https://appshunter.io/ios/app/orion-sentry/id1594469593)

This companion app provides instant alerts for triggered alarms on your Mac. Browse and save motion-triggered photos stored in iCloud through a clean interface. It requires the desktop version and an iCloud account.

**Highlights:** Instant alarm alerts, Browse motion-triggered photos, Save security photos to iPhone, Clean, modern interface, Free to use

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Orion Sentry Pro Monthly | $0.99 | per month |
| Orion Sentry Pro (Forever) | $9.99 | one-time |


### ArkTool

[App page](https://appshunter.io/ios/app/arktool-tool-for-lost-ark/id1623233412)

This app helps players track in-game relationships, simulate item crafting and accessory stats, and calculate market profits. It also provides tools for managing in-game currency and crafting costs.

**Highlights:** Rapport tracker with stage levels and rewards, Accessory simulator for price and quality, Engraving combination suggestions, Craft profit and cost calculator, Mari Shop vs. Auction House gold calculator

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads - 1 Month | $0.99 | per month |
| Remove Ads - 3 Months | $1.99 | per 3 months |
| Remove Ads - 1 Year | $6.99 | per year |
| Donate $4.99 | $4.99 | one-time |
| Donate $9.99 | $9.99 | one-time |
| Donate $24.99 | $24.99 | one-time |


## Frequently asked questions

### Is Orion Sentry free?

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

### Is ArkTool free?

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

### Do Orion Sentry or ArkTool have ads?

Neither Orion Sentry nor ArkTool shows ads.

### Which is updated more often, Orion Sentry or ArkTool?

Orion Sentry ships an update every 9 days, and ArkTool every 5 days. Most recently, Orion Sentry was updated on October 30, 2026 and ArkTool 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.*