# reLink Online vs (SUBTRACT)

The clearest difference is update cadence: (SUBTRACT) at every 3 months against reLink Online's every 34 months. reLink Online's advantage is iOS requirement (13.0 vs 15.1). 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.

reLink Online ships an update every 34 months, (SUBTRACT) every 3 months. The most recent releases landed on October 22, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | reLink Online | (SUBTRACT) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (24 ratings)](https://appshunter.io/ios/app/relink-online/id6443796181/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 57 MB | 49 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [reLink Medical, LLC](https://appshunter.io/developer/1649316661) | [APPBREW INC](https://appshunter.io/developer/1631589504) |

## What reviewers say

### reLink Online

[App page](https://appshunter.io/ios/app/relink-online/id6443796181)

Browse a wide selection of used hospital equipment. New items are added daily to an expansive inventory, offering various types of pre-owned medical gear.

**Highlights:** Expansive inventory of hospital equipment, Used medical equipment for sale, New items added daily, Shop hospital-sourced gear, Variety of equipment types

**Features:** macOS Compatibility

**In-app purchases:** none


### (SUBTRACT)

[App page](https://appshunter.io/ios/app/subtract/id6758109990)

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

**In-app purchases:** none


## Frequently asked questions

### Is reLink Online free?

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

### Is (SUBTRACT) free?

(SUBTRACT) is free to download, with no in-app purchases.

### Do reLink Online or (SUBTRACT) have ads?

Neither reLink Online nor (SUBTRACT) shows ads.

### Which is updated more often, reLink Online or (SUBTRACT)?

reLink Online ships an update every 34 months, and (SUBTRACT) every 3 months. Most recently, reLink Online was updated on October 22, 2026 and (SUBTRACT) on October 25, 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.*