# ULTRAPEN™ PTBTx™ vs JUMO Device

The clearest difference is iOS requirement: JUMO Device at 13.0 against ULTRAPEN™ PTBTx™'s 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ULTRAPEN™ PTBTx™ ships an update every 5 months, JUMO Device every 3 months. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | ULTRAPEN™ PTBTx™ | JUMO Device |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/ultrapen-ptbtx/id885545007/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 9 MB | 4 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Myron L Company](https://appshunter.io/developer/885545010) | [JUMO GmbH & Co. KG](https://appshunter.io/developer/1023671932) |

## What reviewers say

### ULTRAPEN™ PTBTx™

[App page](https://appshunter.io/ios/app/ultrapen-ptbtx/id885545007)

This application transforms your iOS device into a powerful water quality measurement tool when paired with specific pocket testers. It offers wireless data logging, calibration tracking, and exportable reports for various water parameters.

**Highlights:** Wireless communication with pocket testers, Intuitive GUI for pairing and calibration, On-board database for measurements, Data export in .xls, .xlsx, .csv formats, Automatic calibration records, Supports conductivity, TDS, salinity, pH, ORP, and temperature

**Features:** macOS Compatibility

**In-app purchases:** none


### JUMO Device

[App page](https://appshunter.io/ios/app/jumo-device/id1023671933)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ULTRAPEN™ PTBTx™ free?

ULTRAPEN™ PTBTx™ is free to download, with no in-app purchases.

### Is JUMO Device free?

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

### Do ULTRAPEN™ PTBTx™ or JUMO Device have ads?

Neither ULTRAPEN™ PTBTx™ nor JUMO Device shows ads.

### Which is updated more often, ULTRAPEN™ PTBTx™ or JUMO Device?

ULTRAPEN™ PTBTx™ ships an update every 5 months, and JUMO Device every 3 months. Most recently, ULTRAPEN™ PTBTx™ was updated on October 24, 2026 and JUMO Device on October 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.*