# NewClock vs Roberts Hot Tub Controller

The clearest difference is in-app purchases: Roberts Hot Tub Controller at none against NewClock's 1. Roberts Hot Tub Controller also leads on update cadence (monthly vs every 11 months) and iOS requirement (13.0 vs 15.2). NewClock's advantage is rating (3.7 vs 3.3). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. NewClock sells 1 in-app purchase, starting at $0.99 per month. Roberts Hot Tub Controller asks for nothing beyond the download.

NewClock holds the better App Store score, 3.7 against 3.3. Both are backed by a comparable volume of ratings — 3 and 4 respectively.

NewClock ships an update every 11 months, Roberts Hot Tub Controller monthly. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | NewClock | Roberts Hot Tub Controller |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/newclock/id1576999183/reviews)** | [3.3 (4 ratings)](https://appshunter.io/ios/app/roberts-hot-tub-controller/id1615724622/reviews) |
| Number of ratings | 3 | **4** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 months | **Monthly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 47 MB | 45 MB |
| Requires iOS | 15.2 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [EngineZero](https://appshunter.io/developer/1573141529) | [Robert's Hot Tubs, Inc.](https://appshunter.io/developer/1615724624) |

## What reviewers say

### NewClock

[App page](https://appshunter.io/ios/app/newclock/id1576999183)

This utility app redefines your perception of time by allowing you to customize the fundamental units of hours, minutes, and seconds. Tailor your clock to your natural rhythm and gain a new perspective on daily productivity.

**Highlights:** Customizable time units, Change hours, minutes, seconds, Tailor clock to natural rhythm, New perspective on time, Unique daily productivity tool

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | per month |


### 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 NewClock free?

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

### Is Roberts Hot Tub Controller free?

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

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

NewClock is rated higher. NewClock averages 3.7 out of 5 from 3 ratings, while Roberts Hot Tub Controller averages 3.3 from 4 ratings.

### Do NewClock or Roberts Hot Tub Controller have ads?

Neither NewClock nor Roberts Hot Tub Controller shows ads.

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

NewClock ships an update every 11 months, and Roberts Hot Tub Controller monthly. Most recently, NewClock was updated on October 24, 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.*