# LevelSmart vs BlueSync by H2flow

The clearest difference is update cadence: BlueSync by H2flow at every 5 days against LevelSmart's monthly. BlueSync by H2flow also leads on iOS requirement (13.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

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

LevelSmart ships an update monthly, BlueSync by H2flow every 5 days. The most recent releases landed on September 19, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | LevelSmart | BlueSync by H2flow |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | Free | — |
| Size | 1 MB | 25 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kona Labs](https://appshunter.io/developer/1622720212) | [H2FLOW CONTROLS, INC.](https://appshunter.io/developer/1869698970) |

## What reviewers say

### LevelSmart

[App page](https://appshunter.io/ios/app/levelsmart/id6444029386)

Remotely monitor water levels and temperatures for pools, spas, and water features using wireless sensors. Receive alerts for high/low water levels and view historical data for peace of mind. Ensures your water systems are functioning correctly and prevents issues like dry pumps.

**Highlights:** Remote water level monitoring, Water temperature tracking, High/low water level alerts, Push notifications, Leak alerts, Alert history view

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

**In-app purchases:** none


### BlueSync by H2flow

[App page](https://appshunter.io/ios/app/bluesync-by-h2flow/id6757926725)

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

**In-app purchases:** none


## Frequently asked questions

### Is LevelSmart free?

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

### Is BlueSync by H2flow free?

BlueSync by H2flow is free to download, with no in-app purchases.

### Do LevelSmart or BlueSync by H2flow have ads?

Neither LevelSmart nor BlueSync by H2flow shows ads.

### Which is updated more often, LevelSmart or BlueSync by H2flow?

LevelSmart ships an update monthly, and BlueSync by H2flow every 5 days. Most recently, LevelSmart was updated on September 19, 2026 and BlueSync by H2flow on September 20, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*