# ORP Basic for Jenco ORP650B vs AMETEK STC CrystalConnect

The clearest difference is review sentiment: ORP Basic for Jenco ORP650B at 100% against AMETEK STC CrystalConnect's 0%. ORP Basic for Jenco ORP650B also leads on rating (5.0 vs 1.0) and iOS requirement (9.0 vs 15.1). AMETEK STC CrystalConnect's advantage is update cadence (every 2 months vs every 15 months). On price, ratings volume, 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.

ORP Basic for Jenco ORP650B holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 100% of ORP Basic for Jenco ORP650B's written reviews are positive against 0% of AMETEK STC CrystalConnect's.

ORP Basic for Jenco ORP650B ships an update every 15 months, AMETEK STC CrystalConnect every 2 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | ORP Basic for Jenco ORP650B | AMETEK STC CrystalConnect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/orp-basic-for-jenco-orp650b/id1315381470/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/ametek-stc-crystalconnect/id6504881918/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 19 MB | 27 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jenco Instruments, Inc.](https://appshunter.io/developer/1275832649) | [AMETEK STC](https://appshunter.io/developer/1754205857) |

## What reviewers say

### ORP Basic for Jenco ORP650B

[App page](https://appshunter.io/ios/app/orp-basic-for-jenco-orp650b/id1315381470)

This app pairs with a Jenco ORP Bluetooth tester to provide accurate ORP and temperature readings. It offers guided calibration, a clear display of measurements, and useful features like calibration reminders and battery life indicators.

**Highlights:** Accurate ORP and temperature measurement, Bluetooth pairing with Jenco tester, Guided calibration procedures, Reading quality indicator, Displays tester battery life, Pause readings (Hold)

**Features:** macOS Compatibility

**In-app purchases:** none


### AMETEK STC CrystalConnect

[App page](https://appshunter.io/ios/app/ametek-stc-crystalconnect/id6504881918)

This utility app allows remote access to an XP3i Pressure gauge via Bluetooth. Users can view live readings, graph data, configure the gauge, and download log files.

**Highlights:** Bluetooth connectivity to XP3i gauge, Live readings display, Live graph visualization, Gauge configuration, DataLoggerXP log file download

**In-app purchases:** none


## Frequently asked questions

### Is ORP Basic for Jenco ORP650B free?

ORP Basic for Jenco ORP650B is free to download, with no in-app purchases.

### Is AMETEK STC CrystalConnect free?

AMETEK STC CrystalConnect is free to download, with no in-app purchases.

### Which has better reviews, ORP Basic for Jenco ORP650B or AMETEK STC CrystalConnect?

ORP Basic for Jenco ORP650B is rated higher. ORP Basic for Jenco ORP650B averages 5.0 out of 5 from 2 ratings, while AMETEK STC CrystalConnect averages 1.0 from 1 ratings.

### Do ORP Basic for Jenco ORP650B or AMETEK STC CrystalConnect have ads?

Neither ORP Basic for Jenco ORP650B nor AMETEK STC CrystalConnect shows ads.

### Which is updated more often, ORP Basic for Jenco ORP650B or AMETEK STC CrystalConnect?

ORP Basic for Jenco ORP650B ships an update every 15 months, and AMETEK STC CrystalConnect every 2 months. Most recently, ORP Basic for Jenco ORP650B was updated on November 2, 2026 and AMETEK STC CrystalConnect on October 30, 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.*