# DryTech Exteriors vs Hydropool Referral

The clearest difference is update cadence: Hydropool Referral at every 2 weeks against DryTech Exteriors's every 4 months. 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.

DryTech Exteriors ships an update every 4 months, Hydropool Referral every 2 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | DryTech Exteriors | Hydropool Referral |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/drytech-exteriors/id6448388229/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 48 MB | 38 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [DryTech LLC](https://appshunter.io/developer/1684533478) | [Hydropool Inc](https://appshunter.io/developer/1895749341) |

## What reviewers say

### DryTech Exteriors

[App page](https://appshunter.io/ios/app/drytech-exteriors/id6448388229)

This app facilitates communication with a specific exterior services company. Users can register to receive updates via push notifications and in-app messages, and provide feedback on their purchasing experience.

**Highlights:** User registration, Push notifications, In-app messaging, Product purchase feedback, User reviews

**Features:** macOS Compatibility

**In-app purchases:** none


### Hydropool Referral

[App page](https://appshunter.io/ios/app/hydropool-referral/id6764364233)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DryTech Exteriors free?

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

### Is Hydropool Referral free?

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

### Do DryTech Exteriors or Hydropool Referral have ads?

Neither DryTech Exteriors nor Hydropool Referral shows ads.

### Which is updated more often, DryTech Exteriors or Hydropool Referral?

DryTech Exteriors ships an update every 4 months, and Hydropool Referral every 2 weeks. Most recently, DryTech Exteriors was updated on November 3, 2026 and Hydropool Referral on October 31, 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.*