# Conductivity Basic for EC115B vs TDSBot

The clearest difference is update cadence: TDSBot at every 2 months against Conductivity Basic for EC115B's every 15 months. Conductivity Basic for EC115B's advantage is iOS requirement (9.0 vs 15.6). 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.

Conductivity Basic for EC115B ships an update every 15 months, TDSBot every 2 months. The most recent releases landed on October 7, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Conductivity Basic for EC115B | TDSBot |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 2 months** |
| Size | 20 MB | 48 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jenco Instruments, Inc.](https://appshunter.io/developer/1275832649) | [WaterTDS Inc](https://appshunter.io/developer/1529399108) |

## 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


### TDSBot

[App page](https://appshunter.io/ios/app/tdsbot/id1534287431)

**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 TDSBot free?

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

### Do Conductivity Basic for EC115B or TDSBot have ads?

Neither Conductivity Basic for EC115B nor TDSBot shows ads.

### Which is updated more often, Conductivity Basic for EC115B or TDSBot?

Conductivity Basic for EC115B ships an update every 15 months, and TDSBot every 2 months. Most recently, Conductivity Basic for EC115B was updated on October 7, 2026 and TDSBot on October 3, 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.*