# Conductivity Basic for EC115B vs Heat Exchanger Area

The clearest difference is price: Conductivity Basic for EC115B at Free against Heat Exchanger Area's $1.99. Conductivity Basic for EC115B also leads on iOS requirement (9.0 vs 16.1). On update cadence, ads, in-app purchases and device support there is nothing between them.

Conductivity Basic for EC115B is free to download; Heat Exchanger Area costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Conductivity Basic for EC115B ships an update every 15 months, Heat Exchanger Area every 28 months. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Conductivity Basic for EC115B | Heat Exchanger Area |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 15 months** | Every 28 months |
| Size | 20 MB | 1 MB |
| Requires iOS | **9.0** | 16.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jenco Instruments, Inc.](https://appshunter.io/developer/1275832649) | [Imran Pinjara](https://appshunter.io/developer/1484488781) |

## What reviewers say

### Conductivity Basic for EC115B

[App page](https://appshunter.io/ios/app/conductivity-basic-for-ec115b/id1315394053)

**Features:** macOS Compatibility

**In-app purchases:** none


### Heat Exchanger Area

[App page](https://appshunter.io/ios/app/heat-exchanger-area/id1490690839)

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

**In-app purchases:** none


## Frequently asked questions

### Is Conductivity Basic for EC115B free?

Conductivity Basic for EC115B is free to download, with no in-app purchases.

### Is Heat Exchanger Area free?

Heat Exchanger Area costs $1.99, with no in-app purchases.

### Do Conductivity Basic for EC115B or Heat Exchanger Area have ads?

Neither Conductivity Basic for EC115B nor Heat Exchanger Area shows ads.

### Which is updated more often, Conductivity Basic for EC115B or Heat Exchanger Area?

Conductivity Basic for EC115B ships an update every 15 months, and Heat Exchanger Area every 28 months. Most recently, Conductivity Basic for EC115B was updated on October 7, 2026 and Heat Exchanger Area on October 1, 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.*