# pHCalculation vs Acid Base Salt Practice

The clearest difference is in-app purchases: Acid Base Salt Practice at none against pHCalculation's 5. Acid Base Salt Practice also leads on iOS requirement (13.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. pHCalculation sells 5 one-off in-app purchases. Acid Base Salt Practice asks for nothing beyond the download.

## The numbers

| Metric | pHCalculation | Acid Base Salt Practice |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 days | — |
| Size | 2 MB | 27 MB |
| Requires iOS | 18.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Jatuphol Jaturapat](https://appshunter.io/developer/1788860463) | [Manish Kumar](https://appshunter.io/developer/1854995154) |

## What reviewers say

### pHCalculation

[App page](https://appshunter.io/ios/app/phcalculation/id6743737030)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Show solution | $0.99 | one-time |
| Buffer Calculator | $0.99 | one-time |
| Salt pH calculator | $0.99 | one-time |
| Reverse pH calculator | $0.99 | one-time |
| Unlock All Features. | $1.99 | one-time |


### Acid Base Salt Practice

[App page](https://appshunter.io/ios/app/acid-base-salt-practice/id6759965636)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is pHCalculation free?

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

### Is Acid Base Salt Practice free?

Acid Base Salt Practice is free to download, with no in-app purchases.

### Do pHCalculation or Acid Base Salt Practice have ads?

Neither pHCalculation nor Acid Base Salt Practice shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*