# Fermenters Friend vs SolarZero

The clearest difference is review sentiment: Fermenters Friend at 100% against SolarZero's 36%. Fermenters Friend also leads on iOS requirement (6.0 vs 17.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Fermenters Friend | SolarZero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/fermenters-friend/id1008477979/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | **100.0% of reviews** | 35.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Monthly |
| Monetization | Free | Free |
| Size | 10 MB | 22 MB |
| Requires iOS | **6.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Blaze Software](https://appshunter.io/developer/504521714) | [solarZero Limited](https://appshunter.io/developer/1283894275) |

## What reviewers say

### Fermenters Friend

[App page](https://appshunter.io/ios/app/fermenters-friend/id1008477979)

This utility app assists with home fermentation by calculating the correct salt quantity for brines. It also provides a list of suggested brine recipes to get you started. Future updates plan to include a logbook and more fermentation tips.

**Highlights:** Brine salt quantity calculator, Suggested brine recipes, Fermentation tips and tricks, Future logbook feature

**Features:** macOS Compatibility

**In-app purchases:** none


### SolarZero

[App page](https://appshunter.io/ios/app/solarzero/id6504657190)

Monitor and optimize your home's solar energy system with real-time data on energy generation and usage. Track carbon savings, access energy-saving modes, and refer friends to the service.

**Highlights:** Real-time energy generation and usage data, Energy import/export status updates, Carbon savings and footprint tracking, Hot water energy saving mode, Refer-a-Friend program

**In-app purchases:** none


## Frequently asked questions

### Is Fermenters Friend free?

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

### Is SolarZero free?

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

### Do Fermenters Friend or SolarZero have ads?

Neither Fermenters Friend nor SolarZero shows ads.

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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.*