# Calc pH vs GrusHome

The clearest difference is in-app purchases: Calc pH at none against GrusHome's 10. GrusHome's advantage is update cadence (every 10 days vs every 59 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. GrusHome sells 10 one-off in-app purchases. Calc pH asks for nothing beyond the download.

Calc pH ships an update every 59 months, GrusHome every 10 days. The most recent releases landed on September 17, 2026 and June 24, 2026 respectively.

## The numbers

| Metric | Calc pH | GrusHome |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/grushome/id1455196140/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 59 months | **Every 10 days** |
| Monetization | — | Free with in-app purchases |
| Size | 0 MB | 61 MB |
| Requires iOS | 9.0 | 9.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ZOFTERM](https://appshunter.io/developer/557950548) | [Najing Hemeng Information Technology Co., Ltd.](https://appshunter.io/developer/1377555201) |

## What reviewers say

### Calc pH

[App page](https://appshunter.io/ios/app/calc-ph/id566354963)

**Features:** macOS Compatibility

**In-app purchases:** none


### GrusHome

[App page](https://appshunter.io/ios/app/grushome/id1455196140)

Transform an old smartphone into a Wi-Fi connected security camera. Offers motion detection, two-way audio, and HD video streaming for home monitoring. Optional upgrades provide cloud storage and advanced features.

**Highlights:** Repurposes old phones as security cameras, Motion detection with alerts, Two-way audio communication, HD video streaming (1080p), Cross-platform compatibility, Scheduled recording, Secure and private video streaming

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| First Month Trial | $0.99 | one-time |
| Standard Plan 1 Month | $3.99 | one-time |
| 50 SMS Alerts | $3.99 | one-time |
| Standard Plan 3 Months | $8.99 | one-time |
| 150 SMS Alerts | $9.99 | one-time |
| 300 SMS Alerts | $18.99 | one-time |
| Standard Plan 12 Months | $27.99 | one-time |
| 500 SMS Alerts | $28.99 | one-time |
| 7 Days Event Recording | $71.99 | one-time |
| 7 Days Continuous Recording 1Y | $107.99 | one-time |


## Frequently asked questions

### Is Calc pH free?

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

### Is GrusHome free?

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

### Do Calc pH or GrusHome have ads?

Neither Calc pH nor GrusHome shows ads.

### Which is updated more often, Calc pH or GrusHome?

Calc pH ships an update every 59 months, and GrusHome every 10 days. Most recently, Calc pH was updated on September 17, 2026 and GrusHome on June 24, 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.*