# Spark Water vs Live BMS

The clearest difference is rating: Live BMS at 5.0 against Spark Water's 3.0. Live BMS also leads on update cadence (every 6 days vs every 5 months). Spark Water's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (10.1 vs 17.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Live BMS holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

Spark Water ships an update every 5 months, Live BMS every 6 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Spark Water | Live BMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/spark-water/id1209817279/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/live-bms/id6790271833/reviews)** |
| Number of ratings | 2 | 2 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 6 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 49 MB | 4 MB |
| Requires iOS | **10.1** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [SPARK DIAGNOSTICS, LLC](https://appshunter.io/developer/1197766868) | [Tim Jones](https://appshunter.io/developer/1886978098) |

## What reviewers say

### Spark Water

[App page](https://appshunter.io/ios/app/spark-water/id1209817279)

This app automatically reads water test strips using your smartphone camera, providing immediate and accurate results for pool and spa water chemistry. It helps you monitor trends and interpret results easily, ensuring optimal water balance without complex visual charts.

**Highlights:** Automatic test strip reading via camera, Immediate and accurate results, Trend monitoring with historical data, Simple color-coded result interpretation, Supports pool and spa water parameters

**Features:** macOS Compatibility

**In-app purchases:** none


### Live BMS

[App page](https://appshunter.io/ios/app/live-bms/id6790271833)

Monitor multiple LiFePO4 batteries from a single dashboard. View real-time data like charge, voltage, temperature, and cycle count. Get estimates for time to full or empty, and track battery health and performance.

**Highlights:** Unified dashboard for all batteries, Real-time charge, voltage, and current, Per-cell voltage monitoring, Time to full/empty estimates, Battery bank grouping, Trip tracking and history, Remote output control

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Spark Water free?

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

### Is Live BMS free?

Live BMS is free to download, with no in-app purchases.

### Which has better reviews, Spark Water or Live BMS?

Live BMS is rated higher. Spark Water averages 3.0 out of 5 from 2 ratings, while Live BMS averages 5.0 from 2 ratings.

### Do Spark Water or Live BMS have ads?

Neither Spark Water nor Live BMS shows ads.

### Which is updated more often, Spark Water or Live BMS?

Spark Water ships an update every 5 months, and Live BMS every 6 days. Most recently, Spark Water was updated on October 24, 2026 and Live BMS on October 24, 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.*