# myUnits+ vs HydroSewer

The clearest difference is in-app purchases: myUnits+ at none against HydroSewer's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. HydroSewer sells 1 one-off in-app purchase. myUnits+ asks for nothing beyond the download.

myUnits+ ships an update fortnightly, HydroSewer every 3 weeks. The most recent releases landed on October 12, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | myUnits+ | HydroSewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/myunits-plus/id1620108142/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free | — |
| Size | 6 MB | 51 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Pham Huu Phuong](https://appshunter.io/developer/1447471853) | [Transparent Blue Water LLC](https://appshunter.io/developer/1847968351) |

## What reviewers say

### myUnits+

[App page](https://appshunter.io/ios/app/myunits-plus/id1620108142)

Easily convert between various units of measurement for length, weight, area, volume, speed, and temperature. This utility streamlines calculations for everyday needs.

**Highlights:** Unit conversion, Length conversion, Weight conversion, Area conversion, Volume conversion, Speed conversion, Temperature conversion

**Features:** macOS Compatibility

**In-app purchases:** none


### HydroSewer

[App page](https://appshunter.io/ios/app/hydrosewer-drainage-network/id6754671899)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HydroSewer Pro | $14.99 | one-time |


## Frequently asked questions

### Is myUnits+ free?

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

### Is HydroSewer free?

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

### Do myUnits+ or HydroSewer have ads?

Neither myUnits+ nor HydroSewer shows ads.

### Which is updated more often, myUnits+ or HydroSewer?

myUnits+ ships an update fortnightly, and HydroSewer every 3 weeks. Most recently, myUnits+ was updated on October 12, 2026 and HydroSewer on October 29, 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.*