# Superlon Thickness Calculation vs Boiler Tracker

The clearest difference is update cadence: Boiler Tracker at daily against Superlon Thickness Calculation's every 3 weeks. Superlon Thickness Calculation's advantage is iOS requirement (9.0 vs 11.0). 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.

Superlon Thickness Calculation ships an update every 3 weeks, Boiler Tracker daily. The most recent releases landed on October 1, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Superlon Thickness Calculation | Boiler Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Size | 10 MB | 53 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [SUPERLON](https://appshunter.io/developer/1292117263) | [Arrow Energy Company Limited](https://appshunter.io/developer/1592888444) |

## What reviewers say

### Superlon Thickness Calculation

[App page](https://appshunter.io/ios/app/superlon-thickness-calculation/id1292117264)

**Features:** macOS Compatibility

**In-app purchases:** none


### Boiler Tracker

[App page](https://appshunter.io/ios/app/boiler-tracker/id6468994522)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Superlon Thickness Calculation free?

Superlon Thickness Calculation is free to download, with no in-app purchases.

### Is Boiler Tracker free?

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

### Do Superlon Thickness Calculation or Boiler Tracker have ads?

Neither Superlon Thickness Calculation nor Boiler Tracker shows ads.

### Which is updated more often, Superlon Thickness Calculation or Boiler Tracker?

Superlon Thickness Calculation ships an update every 3 weeks, and Boiler Tracker daily. Most recently, Superlon Thickness Calculation was updated on October 1, 2026 and Boiler Tracker on September 26, 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.*