# eXact iDip vs Hanna Lab

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.

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.

## The numbers

| Metric | eXact iDip | Hanna Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (56 ratings)](https://appshunter.io/ios/app/exact-idip/id579168702/reviews)** | [4.0 (10 ratings)](https://appshunter.io/ios/app/hanna-lab/id913755813/reviews) |
| Number of ratings | **56** | 10 |
| Positive reviews | **66.7% of reviews** | 45.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 5 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 41 MB | 32 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Industrial Test Systems Inc.](https://appshunter.io/developer/579168705) | [Hanna Instruments, Inc.](https://appshunter.io/developer/913755816) |

## What reviewers say

### eXact iDip

[App page](https://appshunter.io/ios/app/exact-idip/id579168702)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chloride CH | $4.99 | one-time |
| Copper CU | $4.99 | one-time |
| Hardness, Total Low THL | $4.99 | one-time |
| Iron, Total FE | $4.99 | one-time |
| Nitrate, Fresh NO3 | $4.99 | one-time |
| Phosphate PO4 | $4.99 | one-time |
| Sulfate SO4 | $4.99 | one-time |
| Hardness, Total High THH | $4.99 | one-time |
| Calcium CA | $4.99 | one-time |
| Cyanuric Acid CY-III | $4.99 | one-time |
| Manganese MN | $4.99 | one-time |
| Chlorine, Total (DPD-4) CL | $4.99 | one-time |
| Turbidity TU | $4.99 | one-time |
| Bromine, Total (DPD-4) bR | $4.99 | one-time |
| Pool Bundle | $8.99 | one-time |
| Smart Brew Bundle | $18.99 | one-time |
| 570 Marine Bundle | $23.99 | one-time |
| Well Bundle | $34.99 | one-time |

**What reviewers like**

- 💯 Accurate results
- ⏱️ Quick testing
- ✅ Easy to use
- 💡 Innovative technology
- 💰 Value for money

**What reviewers complain about**

- ❌ Bluetooth connection issues
- 📉 Poor user interface
- 💸 Expensive test strips/algorithms
- ⚠️ Inconsistent results
- 🚫 GPS/location required

**Reported bugs**

- Bluetooth connection problems
- App crashes on launch or during use
- Lost purchased tests after update
- Results data goes missing
- Store section not showing items

**Requested features**

- 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


### Hanna Lab

[App page](https://appshunter.io/ios/app/hanna-lab/id913755813)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is eXact iDip free?

eXact iDip is free to download, with in-app purchases available.

### Is Hanna Lab free?

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

### Which has better reviews, eXact iDip or Hanna Lab?

eXact iDip is rated higher. eXact iDip averages 4.0 out of 5 from 56 ratings, while Hanna Lab averages 4.0 from 10 ratings.

### Do eXact iDip or Hanna Lab have ads?

Neither eXact iDip nor Hanna Lab shows ads.

### Which is updated more often, eXact iDip or Hanna Lab?

eXact iDip ships an update every 6 weeks, and Hanna Lab every 5 months. Most recently, eXact iDip was updated on October 20, 2026 and Hanna Lab on September 25, 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.*