# Heating Pipe Size vs Smartuli

The clearest difference is price: Smartuli at Free against Heating Pipe Size's $5.99. Smartuli also leads on update cadence (every 2 months vs every 15 months) and iOS requirement (15.1 vs 26.0). On ads, in-app purchases and device support there is nothing between them.

Smartuli is free to download; Heating Pipe Size costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Heating Pipe Size ships an update every 15 months, Smartuli every 2 months. Both last shipped on September 9, 2026.

## The numbers

| Metric | Heating Pipe Size | Smartuli |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 2 months** |
| Size | 1 MB | 24 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sebastjan Valic](https://appshunter.io/developer/503687385) | [Ilia Manizhashvili](https://appshunter.io/developer/1802681433) |

## What reviewers say

### Heating Pipe Size

[App page](https://appshunter.io/ios/app/heating-pipe-size/id527730872)

**Features:** Vision Pro support

**In-app purchases:** none


### Smartuli

[App page](https://appshunter.io/ios/app/smartuli/id6482978577)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Heating Pipe Size free?

Heating Pipe Size costs $5.99, with no in-app purchases.

### Is Smartuli free?

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

### Do Heating Pipe Size or Smartuli have ads?

Neither Heating Pipe Size nor Smartuli shows ads.

### Which is updated more often, Heating Pipe Size or Smartuli?

Heating Pipe Size ships an update every 15 months, and Smartuli every 2 months. Most recently, Heating Pipe Size was updated on September 9, 2026 and Smartuli 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.*