# eXact iDip vs CrateCheck

The clearest difference is in-app purchases: CrateCheck at none against eXact iDip's 18. eXact iDip's advantage is update cadence (every 6 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. eXact iDip sells 18 one-off in-app purchases. CrateCheck asks for nothing beyond the download.

eXact iDip ships an update every 6 weeks, CrateCheck every 3 months. The most recent releases landed on August 29, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | eXact iDip | CrateCheck |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (49 ratings)](https://appshunter.io/ios/app/exact-idip/id579168702/reviews)** | — |
| Number of ratings | **49** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 41 MB | 5 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Industrial Test Systems Inc.](https://appshunter.io/developer/579168705) | [Qconz](https://appshunter.io/developer/1218200635) |

## 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


### CrateCheck

[App page](https://appshunter.io/ios/app/cratecheck/id6746335438)

**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 CrateCheck free?

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

### Do eXact iDip or CrateCheck have ads?

Neither eXact iDip nor CrateCheck shows ads.

### Which is updated more often, eXact iDip or CrateCheck?

eXact iDip ships an update every 6 weeks, and CrateCheck every 3 months. Most recently, eXact iDip was updated on August 29, 2026 and CrateCheck on September 20, 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.*