# ShockLink vs SHO

The clearest difference is review sentiment: ShockLink at 100% against SHO's 0%. ShockLink also leads on rating (4.8 vs 4.2). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ShockLink holds the better App Store score, 4.8 against 4.2. Both are backed by a comparable volume of ratings — 5 and 12 respectively. Written reviews point the same way: 100% of ShockLink's written reviews are positive against 0% of SHO's.

ShockLink ships an update every 3 months, SHO every 2 months. The most recent releases landed on October 6, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | ShockLink | SHO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/shocklink/id1030723915/reviews)** | [4.2 (12 ratings)](https://appshunter.io/ios/app/sho-flow/id1447418345/reviews) |
| Number of ratings | 5 | **12** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 209 MB | 145 MB |
| Requires iOS | **13.0** | 14.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Laerdal Medical AS](https://appshunter.io/developer/1025710785) | [Task Force Tips](https://appshunter.io/developer/1447418344) |

## What reviewers say

### ShockLink

[App page](https://appshunter.io/ios/app/shocklink/id1030723915)

This application facilitates realistic defibrillator training by allowing users to control pad placement, CPR artifact, and various heart rhythms. It supports multiple defibrillator models and offers customizable training scenarios for adult, child, and infant simulations.

**Highlights:** Live defibrillator integration, Control pad placement, CPR artifact simulation, Eight selectable heart rhythms, Customizable training scenarios, Measure shock energy, Record training time

**Features:** macOS Compatibility

**In-app purchases:** none


### SHO

[App page](https://appshunter.io/ios/app/sho-flow/id1447418345)

This app assists firefighters in calculating water flow rates, pump discharge pressures, and nozzle reactions. It can be used with a Bluetooth flow meter or as a standalone calculator with established fire flow formulas. Educational videos on water flow are also included.

**Highlights:** Calculate fire hose flow rates, Determine pump discharge pressures, Calculate nozzle reaction, Perform NFPA 1962 nozzle flow tests, Standalone water flow calculator, Water flow education videos

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ShockLink free?

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

### Is SHO free?

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

### Which has better reviews, ShockLink or SHO?

ShockLink is rated higher. ShockLink averages 4.8 out of 5 from 5 ratings, while SHO averages 4.2 from 12 ratings.

### Do ShockLink or SHO have ads?

Neither ShockLink nor SHO shows ads.

### Which is updated more often, ShockLink or SHO?

ShockLink ships an update every 3 months, and SHO every 2 months. Most recently, ShockLink was updated on October 6, 2026 and SHO on September 27, 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.*