# Simple Zip vs Roberts Hot Tub Controller

The clearest difference is rating: Simple Zip at 5.0 against Roberts Hot Tub Controller's 3.3. Simple Zip also leads on update cadence (every 6 days vs monthly). Roberts Hot Tub Controller's advantage is ratings volume (4 vs 1) and iOS requirement (13.0 vs 16.4). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Simple Zip holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

Simple Zip ships an update every 6 days, Roberts Hot Tub Controller monthly. The most recent releases landed on October 1, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Simple Zip | Roberts Hot Tub Controller |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/simple-zip/id1554464336/reviews)** | [3.3 (4 ratings)](https://appshunter.io/ios/app/roberts-hot-tub-controller/id1615724622/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Monthly |
| Monetization | Free | Free |
| Size | 27 MB | 45 MB |
| Requires iOS | 16.4 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Move On Studio](https://appshunter.io/developer/1554464338) | [Robert's Hot Tubs, Inc.](https://appshunter.io/developer/1615724624) |

## What reviewers say

### Simple Zip

[App page](https://appshunter.io/ios/app/simple-zip/id1554464336)

This utility app offers a straightforward way to compress files, photos, and videos. It focuses on speed and simplicity, providing a distraction-free experience without advertisements or internet connectivity requirements.

**Highlights:** Compress files, Compress photos, Compress videos, No ads, No internet required, Fast compression

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

**In-app purchases:** none


### Roberts Hot Tub Controller

[App page](https://appshunter.io/ios/app/roberts-hot-tub-controller/id1615724622)

Control your hot tub remotely from your iOS device. Adjust temperature, set filtration cycles, and manage pumps. Built-in freeze protection ensures your tub is safe.

**Highlights:** Remote hot tub control, Temperature adjustment, Filtration cycle settings, Pump on/off control, Built-in freeze protection

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Simple Zip free?

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

### Is Roberts Hot Tub Controller free?

Roberts Hot Tub Controller is free to download, with no in-app purchases.

### Which has better reviews, Simple Zip or Roberts Hot Tub Controller?

Simple Zip is rated higher. Simple Zip averages 5.0 out of 5 from 1 ratings, while Roberts Hot Tub Controller averages 3.3 from 4 ratings.

### Do Simple Zip or Roberts Hot Tub Controller have ads?

Neither Simple Zip nor Roberts Hot Tub Controller shows ads.

### Which is updated more often, Simple Zip or Roberts Hot Tub Controller?

Simple Zip ships an update every 6 days, and Roberts Hot Tub Controller monthly. Most recently, Simple Zip was updated on October 1, 2026 and Roberts Hot Tub Controller on October 8, 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.*