pH vs Sentron
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
pH
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The pH-Meter application measures, displays and stores pH, voltage, and temperature values of a pH-electrode connected to the taskit pH-Meter accessory. The application shows the measured values in real time. Furthermore, the most important information of the measurement, connection and calibration are displayed. The connection to the pH-Meter accessory is established via Bluetooth. Features: - Automatic Temperature Compensation (ATC) - Accuracy of the pH value 0.02 pH - Accuracy of the temperature value 1 ° C / ° K - Communication with the pH-Meter over Bluetooth Low Energy (BLE) - Automatic storage of measurement values at specific time intervals (manually adjustable) - Read the last calibration of the pH-Meter - 2-point calibration is possible - Deactivation of the temperature measurement of the electrode - Temperature display unit selectable: Celsius, Kelvin, Fahrenheit Display: The pH readings can be viewed in real-time including: - Digital pH value display - Digital temperature value display - Last stored pH measurement with date - Last calibration with slope, offset and date (on "Info" page) - State of the connection with the pH-Meter (as icon) Storage / transfer: All stored readings (pH, voltage, temperature, location and time) can be viewed in a table, sent by e-mail or imported via iTunes as a csv file on the PC. Compatibility: Requires iOS 7.1 or later. Compatible with iPhone, iPad and iPod touch.
Sentron
Transform your mobile device into a sophisticated pH meter. Connect wirelessly to specialized probes for accurate measurements in various applications. The app guides you through calibration, data logging, and export.
- Wireless pH/EC measurement
- Bluetooth probe connectivity
- Step-by-step calibration
- Data logging and graphing
- GPS data mapping
- Automatic temperature compensation
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Turn your mobile device into a full-featured pH meter by downloading this free Analytical Sensors app. Connect your device to one or more non-glass Sentron pH probes with Bluetooth Low Energy technology. Step-by-step instructions included. The app is intuitive and guides you through the complete process of setting configurations, calibrating, acquiring, storing and exporting all measurement data. Monitoring pH was never that easy! SENTRON EUROPE BV Sentron has developed a comprehensive line of wireless high-quality probes for glass-free pH measurements. Sentron’s ISFET pH sensor technology provides accurate and reliable pH measurements for various applications. All pH probes include a replaceable, interchangeable sensor part for extra durability. It is wirelessly connected via Bluetooth to our Sentron app. Interested? Purchase your pH probe of interest simply at our web shop at www.sentron.nl/shop . For your convenience we offer carry cases with a buffer set and predrill stick. This predrill stick can be used to prepare pilot holes in dry soils. The carry case offers convenient protection for your probes. pH AS A CRITICAL PARAMETER pH is a critical parameter in many areas. Examples include agriculture, horticulture, environment, laboratory applications and inline food processes for beer, wine, meat, fish, or cheese. SENTRON’S ISFET pH SENSOR PROBE * Wireless * Glass-free * Robust * Dry storage SENTRON GLASS-FREE pH PROBES Thanks to comprehensive ISFET pH sensor technology, Sentron offers glass-free wireless pH probes. The probes are used for accurate and reliable pH measurements for demanding applications. Multiple Sentron probes can be connected simultaneously. Functions include calibration (1-, 2-, 3- and 5-point calibration), sample measurement, data logging, graph plotting and data sharing. Measurement of pH and temperature starts as soon as the probe is connected to the mobile device. A notification signals when a probe needs a new calibration. The measurement can be displayed as tabulated data or a graph. ADDITIONAL FEATURES * Display of the probe’s condition, name, reading stability and battery life * Both automatic customizable and manual data logging * Automatic temperature compensation (ATC) * User-definable alarm thresholds for pH and temperature * Automatic recognition of previously connected probes and calibration data stored on probes * GPS mapping of your pH data * Advanced mode option for expert users WIRELESS The Sentron probe’s Bluetooth Low Energy technology offers many advantages in wireless measurement convenience. Each probe can be used up to 50 meters (150 feet) from the mobile device. The Sentron probe and app are ideal for professionals and private indiiduals that need accurate wireless measurements in the laboratory, industry halls, outdoors, etc. Sentron probes are compatible with devices with Bluetooth 5.0 or higher. DEMO PROBES AVAILABLE Would you like to experience our app before buying our product? That’s possible! Download the app and add the virtual demo probe in the app. Experience the convenience of the app yourself. COMING SOON: MULTIPARAMETER PROBE The current pH probe portfolio will be extended with probes for EC (Electrical Conductivity) and ORP (Oxidation Reduction Potential). Imagine: alle these parameters in one and the same probe! Follow us at www.sentron.nl for any related news.
Screenshots
Verdict
The clearest difference is iOS requirement: pH at 7.1 against Sentron's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
pH ships an update monthly, Sentron every 5 weeks. The most recent releases landed on September 14, 2026 and September 22, 2026 respectively.
| Parameter | pH | Sentron |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Monthly — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 7.1 — better | 15.0 |
| Further details — not scored | ||
| Size | 2 MB | 94 MB |
| Age rating | 4+ | 4+ |
| Developer | taskit | Sentron Europe B.V. |
In-app purchases
pH
No in-app purchases
Sentron
No in-app purchases








