eXact iDip vs Hanna Lab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
eXact iDip
This app transforms your smartphone into a powerful water testing tool. It works with a handheld photometer to provide accurate water analysis, store data, and track locations. Customize your testing with over 40 additional parameters available for purchase.
- Share test data via CSV
- Seamless smartphone integration
- Parameter information and data storage
- GPS tracking
- Over 40 purchasable test parameters
- Quick and simple testing procedure
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Harness the power of the smartphone AND upgrade the way you test water! Share E–mail test data via CSV file (spreadsheet) The exciting eXact iDip® Smart Photometer System® by ITS, Inc. harnesses the power of smart devices and the simplicity of design to handle the heavy lifting of complex water testing. The smart phone app is designed to work seamlessly with the waterproof handheld unit with parameter information, data storage and GPS tracking included. With guaranteed exact results in less time, our new smarter process will revolutionize water testing. The app comes with 4 tests installed including pH, Free Chlorine, Combined Chlorine (Chloramines) and Total Alkalinity. Over 40 additional parameters are available for in app purchase ($4.99/ea), so you can tailor the eXact iDip® to suit your needs at a fraction of the cost of competing multi-parameter photometers. The simple and quick testing procedure takes the guesswork out of results. It’s like having a laboratory in the palm of your hand.
Hanna Lab
Transform your mobile device into a professional-grade pH meter or data management system. Connect with compatible Hanna Instruments probes and meters to conduct precise measurements, store data securely, and access it via the cloud.
- pH meter functionality with Bluetooth probes
- Data management with compatible meters
- Hanna Cloud compatibility for data sync
- Live measurements and trend graphs
- Data export in PDF and CSV formats
- Calibration and logging features
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The Hanna Lab App turns your iPhone or iPad into a full-featured pH meter when used with a Hanna Instruments HALO® or HALO2 pH probe with Bluetooth® Smart technology or a data management system when used with a Hanna Instruments HI98494 or HI98594 Multiparameter Bluetooth Portable Meter or HI97115 Marine Master Waterproof Multiparameter Photometer. Whether you're in the lab, in the field, or at your desk, Hanna Lab delivers professional-grade measurements with flexible access, reliable storage, and intuitive control. The Hanna Lab App now features Hanna Cloud compatibility. Once connected, data from HALO & HALO2 probes, HI98494 & HI98594 and HI97115 meters, can be automatically uploaded to Hanna Cloud. Hanna Cloud is a free web-based application accessible from your PC, tablet, or phone. Features will vary depending on the connected device. They include but are not limited to live measurements, trend graphs, log history, device settings, alarms, and target ranges. •HALO or HALO2 pH Probes When used with HALO pH probes, functions include: -Clear and concise calibration screens for calibration of up to 5 points. -Annotated data points can be saved with measurement-specific information. When using a Halo2 pH probe annotated readings can be saved on demand or on stability. -Data is automatically saved every hour. Data can be shared via PDF or CSV format. -Dynamic graphing provides measurement information linearly. Graph axes may be expanded using pinch-to-zoom technology for enhanced viewing. When connected to Hanna Cloud, log files from the HALO pH probes can be uploaded automatically or manually from log history. Files on the cloud can be merged and exported with a reduced logging interval. Annotated readings from the HALO probes can be uploaded immediately to the cloud and saved in a separate data file. •HI98494 or HI98594 Multiparameter Meter When used with a HI98494 or HI98594 Multiparameter Bluetooth Portable Meter, functions include: -Data can be shared via PDF or CSV format. -Downloaded log files with dynamic graphing. Graph axes may be expanded using pinch-to-zoom technology for enhanced viewing. -GLP information for the previous five calibrations. -User-selectable measurement units. -Stay up to date with the latest firmware updates for the HI98594 on the device information page. When connected to Hanna Cloud, log files can be uploaded automatically or manually in log history. New data added to uploaded log-on-demand files is automatically synced to the cloud. Log files that have been uploaded to the cloud have user-selectable parameters measurement units, and four parameters can be graphed at the same time. •HI97115 Marine Master Photometer When used with a HI97115 Marine Master Waterproof Multiparameter Photometer, functions include: -User-defined method groups for routine analysis. -Readings can be collected using the app or synced directly from the HI97115 meter. -Data can be shared via PDF or CSV format. -Trend data with dynamic graphing. Graph axes may be expanded using pinch-to-zoom technology for enhanced viewing. -Stay up to date with the latest firmware updates on the device information page. -A demo meter has been included, showing all the features of this app. When connected to Hanna Cloud, log files can be uploaded automatically or manually in log history. When connected to Hanna Cloud, user-defined target ranges can be set, and four parameters can be graphed at the same time. Hanna Lab is compatible with iOS 15 or newer and iOS devices with Bluetooth 4.0+.
Screenshots
Verdict
The clearest difference is in-app purchases: Hanna Lab at none against eXact iDip's 18. eXact iDip's advantage is review sentiment (67% vs 45%) and update cadence (every 6 weeks vs every 5 months). On price, rating, ads and device support 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. eXact iDip sells 18 one-off in-app purchases. Hanna Lab asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.0 for eXact iDip against 4.0 for Hanna Lab. That said, the two scores are not equally well evidenced: eXact iDip has 56 ratings behind it against 10, so its average is the more settled of the two. Written reviews are what separate them: 67% of eXact iDip's written reviews are positive against 45% of Hanna Lab's.
eXact iDip ships an update every 6 weeks, Hanna Lab every 5 months. The most recent releases landed on October 20, 2026 and September 25, 2026 respectively.
| Parameter | eXact iDip | Hanna Lab |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (56 ratings) — better | 4.0 (10 ratings) |
| Positive reviews | 66.7% of reviews — better | 45.5% of reviews |
| Number of ratings | 56 — better | 10 |
| Update frequency | Every 6 weeks — better | Every 5 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 41 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Industrial Test Systems Inc. | Hanna Instruments, Inc. |
Customer experience
eXact iDip
Hanna Lab
Bugs and requests
eXact iDip
Reported bugs
10 issues- Bluetooth connection problems
- App crashes on launch or during use
- Lost purchased tests after update
- Results data goes missing
- Store section not showing items
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- App not working on iOS 13
- Crashing when importing contacts
- Cannot save tests to customer
- Varying results from same sample
- Hanging dialogue boxes ('configuring', 'loading algorithm')
Requested features
7 requests- Improve user interface and navigation
- Allow setting customer/site once for personal use
- Provide actual readings instead of 'LO'/'HIGH'
- Full screen support for iPhone X and iPads
- Better interface/integration between devices
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- Option to not require GPS
- Make test purchases more straightforward
Hanna Lab
Not enough reviews yet to summarise bugs or requests.
In-app purchases
eXact iDip
- Chloride CH$4.99
- Copper CU$4.99
- Hardness, Total Low THL$4.99
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- Iron, Total FE$4.99
- Nitrate, Fresh NO3$4.99
- Phosphate PO4$4.99
- Sulfate SO4$4.99
- Hardness, Total High THH$4.99
- Calcium CA$4.99
- Cyanuric Acid CY-III$4.99
- Manganese MN$4.99
- Chlorine, Total (DPD-4) CL$4.99
- Turbidity TU$4.99
- Bromine, Total (DPD-4) bR$4.99
- Pool Bundle$8.99
- Smart Brew Bundle$18.99
- 570 Marine Bundle$23.99
- Well Bundle$34.99
Hanna Lab
No in-app purchases









