# Four Site ArcPro vs SerialCheck

The clearest difference is in-app purchases: Four Site ArcPro at none against SerialCheck's 3. SerialCheck's advantage is update cadence (every 3 weeks vs every 3 months) and device support (4 vs 2). On price and ads there is nothing between them.

Both are free to download. SerialCheck sells 3 in-app purchases, starting at $0.99 per month. Four Site ArcPro asks for nothing beyond the download.

Four Site ArcPro ships an update every 3 months, SerialCheck every 3 weeks. The most recent releases landed on October 5, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Four Site ArcPro | SerialCheck |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/four-site-arcpro/id1224332304/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 39 MB | 37 MB |
| Requires iOS | 18.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 17+ |
| Developer | [Four Site Inc](https://appshunter.io/developer/1224332303) | [NanoHawk](https://appshunter.io/developer/1805616299) |

## What reviewers say

### Four Site ArcPro

[App page](https://appshunter.io/ios/app/four-site-arcpro/id1224332304)

This app allows users to download property inspection workloads for offline use, syncing changes when connectivity is restored. It streamlines the inspection process with optimized workflows and quick photo uploads.

**Highlights:** Offline inspection capability, Syncs changes when connected, Optimized workflow, Rapid photo uploads, Property inspection management

**Features:** Vision Pro support

**In-app purchases:** none


### SerialCheck

[App page](https://appshunter.io/ios/app/serialcheck-hvac-age-decoder/id6759895640)

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SerialCheck Pro Monthly | $0.99 | per month |
| SerialCheck Pro Annual | $3.99 | per year |
| SerialCheck Pro Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Four Site ArcPro free?

Four Site ArcPro is free to download, with no in-app purchases.

### Is SerialCheck free?

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

### Do Four Site ArcPro or SerialCheck have ads?

Neither Four Site ArcPro nor SerialCheck shows ads.

### Which is updated more often, Four Site ArcPro or SerialCheck?

Four Site ArcPro ships an update every 3 months, and SerialCheck every 3 weeks. Most recently, Four Site ArcPro was updated on October 5, 2026 and SerialCheck on October 4, 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.*