# API PRO Stock vs CHECK.connects

The clearest difference is update cadence: CHECK.connects at monthly against API PRO Stock's every 10 months. API PRO Stock's advantage is iOS requirement (8.0 vs 15.0). 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.

API PRO Stock ships an update every 10 months, CHECK.connects monthly. The most recent releases landed on October 26, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | API PRO Stock | CHECK.connects |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Monthly** |
| Size | 2 MB | 76 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [API Maintenance Systems A/S](https://appshunter.io/developer/589801801) | [All-Connects](https://appshunter.io/developer/1189049925) |

## What reviewers say

### API PRO Stock

[App page](https://appshunter.io/ios/app/api-pro-stock/id1400648449)

**Features:** macOS Compatibility

**In-app purchases:** none


### CHECK.connects

[App page](https://appshunter.io/ios/app/checkconnects/id1435273756)

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

**In-app purchases:** none


## Frequently asked questions

### Is API PRO Stock free?

API PRO Stock is free to download, with no in-app purchases.

### Is CHECK.connects free?

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

### Do API PRO Stock or CHECK.connects have ads?

Neither API PRO Stock nor CHECK.connects shows ads.

### Which is updated more often, API PRO Stock or CHECK.connects?

API PRO Stock ships an update every 10 months, and CHECK.connects monthly. Most recently, API PRO Stock was updated on October 26, 2026 and CHECK.connects on October 29, 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.*