# WaterLink Solutions PRO vs Code Rain

The clearest difference is rating: Code Rain at 3.8 against WaterLink Solutions PRO's 2.9. WaterLink Solutions PRO's advantage is in-app purchases (none vs 1) and iOS requirement (11.2 vs 15.0). On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. Code Rain sells 1 one-off in-app purchase. WaterLink Solutions PRO asks for nothing beyond the download.

Code Rain holds the better App Store score, 3.8 against 2.9. Both are backed by a comparable volume of ratings — 16 and 11 respectively. Written reviews point the same way: 31% of WaterLink Solutions PRO's written reviews are positive against 38% of Code Rain's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 26, 2026 and July 8, 2026 respectively.

## The numbers

| Metric | WaterLink Solutions PRO | Code Rain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (16 ratings)](https://appshunter.io/ios/app/waterlink-solutions-pro/id1398371628/reviews) | **[3.8 (11 ratings)](https://appshunter.io/ios/app/code-rain/id1667722294/reviews)** |
| Number of ratings | **16** | 11 |
| Positive reviews | 30.8% of reviews | **37.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 95 MB | 4 MB |
| Requires iOS | **11.2** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [LaMotte Chemical Products Company](https://appshunter.io/developer/975652461) | [Hanquan Liang](https://appshunter.io/developer/1607751967) |

## What reviewers say

### WaterLink Solutions PRO

[App page](https://appshunter.io/ios/app/waterlink-solutions-pro/id1398371628)

This app allows professionals to manage water analysis data, including property, contact, and site records. It facilitates water testing and seamlessly transfers results from compatible devices via Bluetooth for fast, accurate insights.

**Highlights:** Manage property, contact, and site records, Perform water tests, Transfer results via Bluetooth, Access data anywhere, Supports commercial water professionals

**Features:** macOS Compatibility

**In-app purchases:** none


### Code Rain

[App page](https://appshunter.io/ios/app/code-rain/id1667722294)

Experience a digital code rain effect, inspired by the iconic Matrix visuals. This simulator offers a simple, offline experience with no data collection. Choose between a free version with limited full-screen play or a Pro version for uninterrupted immersion.

**Highlights:** Digital code rain effect, Matrix-inspired visuals, Offline functionality, No data collection, Full-screen mode, Adjustable settings

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $4.99 | one-time |


## Frequently asked questions

### Is WaterLink Solutions PRO free?

WaterLink Solutions PRO is free to download, with no in-app purchases.

### Is Code Rain free?

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

### Which has better reviews, WaterLink Solutions PRO or Code Rain?

Code Rain is rated higher. WaterLink Solutions PRO averages 2.9 out of 5 from 16 ratings, while Code Rain averages 3.8 from 11 ratings.

### Do WaterLink Solutions PRO or Code Rain have ads?

Neither WaterLink Solutions PRO nor Code Rain shows ads.

### Which is updated more often, WaterLink Solutions PRO or Code Rain?

WaterLink Solutions PRO ships an update every 3 months, and Code Rain every 3 months. Most recently, WaterLink Solutions PRO was updated on September 26, 2026 and Code Rain on July 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*