# Spark NZ vs Smart Water Tech

The clearest difference is rating: Spark NZ at 3.5 against Smart Water Tech's 2.3. Spark NZ also leads on in-app purchases (none vs 1) and ratings volume (88 vs 3). Smart Water Tech's advantage is ads (none vs shown) and update cadence (every 2 weeks vs every 5 weeks). On price, review sentiment, monetization model and device support there is nothing between them.

Both are free to download. Smart Water Tech sells 1 in-app purchase, starting at $15.49 per year. Spark NZ asks for nothing beyond the download.

Spark NZ holds the better App Store score, 3.5 against 2.3. That said, the two scores are not equally well evidenced: Spark NZ has 88 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 8% of Spark NZ's written reviews are positive against 13% of Smart Water Tech's, so the app with the better star average is not the one people write more warmly about.

Spark NZ ships an update every 5 weeks, Smart Water Tech every 2 weeks. The most recent releases landed on September 21, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Spark NZ | Smart Water Tech |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (88 ratings)](https://appshunter.io/ios/app/spark-nz/id703229756/reviews)** | [2.3 (3 ratings)](https://appshunter.io/ios/app/smart-water-tech/id1454333433/reviews) |
| Number of ratings | **88** | 3 |
| Positive reviews | 7.8% of reviews | **12.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 193 MB | 49 MB |
| Requires iOS | 16.6 | 16.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Spark New Zealand Trading Limited](https://appshunter.io/developer/703229759) | [Ivent Solutions Limited](https://appshunter.io/developer/1454333432) |

## What reviewers say

### Spark NZ

[App page](https://appshunter.io/ios/app/spark-nz/id703229756)

Manage all your mobile, broadband, and wearable plans in one convenient app. Easily top up, pay bills, track data usage, and discover the latest offers and content.

**Highlights:** Manage all accounts in one place, Quick bill payments, Track data usage by hour, day, month, Top up plans and add data/minutes, Discover latest offers and content

**In-app purchases:** none

**What reviewers like**

- 👍 Good overall app
- 🚀 Easy to use
- 📊 Useful for tracking usage

**What reviewers complain about**

- 🐛 Buggy and crashes frequently
- 🤔 Confusing and unintuitive UI
- 💸 Overcharging and billing issues
- 📞 Poor customer support
- 🔌 Connectivity problems

**Reported bugs**

- Login and password reset issues
- Unreliable data tracking and usage information
- Compatibility problems with newer OS versions
- Transactions failing or not reflecting properly

**Requested features**

- Improve payment and top-up functionality
- Add more self-service options
- Provide better visibility into account details
- Integrate with other Spark services


### Smart Water Tech

[App page](https://appshunter.io/ios/app/smart-water-tech/id1454333433)

Monitor and manage multiple water tanks wirelessly with advanced features like leak detection and pump control. This app offers real-time data, time-to-empty calculations, and weather forecasts for efficient water management.

**Highlights:** Wireless tank level monitoring, Leak detection, Pump control, Time to empty calculation, Weather forecasting, Manage up to 12 tanks

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Smart Water Premium | $15.49 | per year |


## Frequently asked questions

### Is Spark NZ free?

Spark NZ is free to download, with no in-app purchases.

### Is Smart Water Tech free?

Smart Water Tech is free to download, with in-app purchases available.

### Which has better reviews, Spark NZ or Smart Water Tech?

Spark NZ is rated higher. Spark NZ averages 3.5 out of 5 from 88 ratings, while Smart Water Tech averages 2.3 from 3 ratings.

### Do Spark NZ or Smart Water Tech have ads?

Spark NZ shows ads; Smart Water Tech does not.

### Which is updated more often, Spark NZ or Smart Water Tech?

Spark NZ ships an update every 5 weeks, and Smart Water Tech every 2 weeks. Most recently, Spark NZ was updated on September 21, 2026 and Smart Water Tech on September 9, 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.*