# SpaNET SmartLink vs Never Zero Habit Tracker

The clearest difference is in-app purchases: SpaNET SmartLink at none against Never Zero Habit Tracker's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Never Zero Habit Tracker sells 1 one-off in-app purchase. SpaNET SmartLink asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 9, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | SpaNET SmartLink | Never Zero Habit Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 17.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | — |
| Size | 25 MB | 5 MB |
| Requires iOS | **16.6** | 17.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Spa Net Pty Ltd](https://appshunter.io/developer/911707294) | [Mark Brenchley](https://appshunter.io/developer/1884172175) |

## What reviewers say

### SpaNET SmartLink

[App page](https://appshunter.io/ios/app/spanet-smartlink/id1621226788)

Control your spa remotely from anywhere using your smartphone. Adjust temperature, settings, and accessories like pumps and lights. Optimize energy usage and save on heating costs.

**Highlights:** Remote spa control, Adjust temperature and settings, Control pumps, blowers, and lights, Energy cost reduction, Voice command integration (Alexa), Multi-lingual support

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

**In-app purchases:** none


### Never Zero Habit Tracker

[App page](https://appshunter.io/ios/app/never-zero-habit-tracker/id6760372583)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Premium Calendar | $2.99 | one-time |


## Frequently asked questions

### Is SpaNET SmartLink free?

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

### Is Never Zero Habit Tracker free?

Never Zero Habit Tracker is free to download, with in-app purchases available.

### Do SpaNET SmartLink or Never Zero Habit Tracker have ads?

Neither SpaNET SmartLink nor Never Zero Habit Tracker shows ads.

### Which is updated more often, SpaNET SmartLink or Never Zero Habit Tracker?

SpaNET SmartLink ships an update every 3 weeks, and Never Zero Habit Tracker every 3 weeks. Most recently, SpaNET SmartLink was updated on October 9, 2026 and Never Zero Habit Tracker on September 10, 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.*