# GrowDiary vs HydroponicsCalc

The clearest difference is price: GrowDiary at Free against HydroponicsCalc's $1.99. GrowDiary also leads on iOS requirement (16.4 vs 26.5). HydroponicsCalc's advantage is ads (none vs shown). On in-app purchases and device support there is nothing between them.

GrowDiary is free to download; HydroponicsCalc costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | GrowDiary | HydroponicsCalc |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hydroponicscalc/id6775172331/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 9 days | — |
| Monetization | — | Paid |
| Size | 46 MB | 1 MB |
| Requires iOS | **16.4** | 26.5 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [GrowD soft s.r.o.](https://appshunter.io/developer/1784239247) | [Douglas Stieber](https://appshunter.io/developer/6771586128) |

## What reviewers say

### GrowDiary

[App page](https://appshunter.io/ios/app/growdiary/id6739211123)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### HydroponicsCalc

[App page](https://appshunter.io/ios/app/hydroponicscalc/id6775172331)

Manage your hydroponic garden with this comprehensive tool. Track reservoir levels, mix nutrients precisely, calculate pH and VPD, and document your grow with a journal and harvest log. Supports both US and metric units.

**Highlights:** Reservoir management dashboard, Concentrate and EC mixing calculators, pH and VPD calculators, Grow journal with photo timeline, Harvest log and ROI dashboard, Light schedule tracker, US & Metric unit support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GrowDiary free?

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

### Is HydroponicsCalc free?

HydroponicsCalc costs $1.99, with no in-app purchases.

### Do GrowDiary or HydroponicsCalc have ads?

GrowDiary shows ads; HydroponicsCalc does not.

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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.*