# Bluebits vs Grundfos GO Solar

The clearest difference is update cadence: Grundfos GO Solar at every 3 months against Bluebits's every 16 months. Bluebits's advantage is iOS requirement (11.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Bluebits ships an update every 16 months, Grundfos GO Solar every 3 months. The most recent releases landed on October 26, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Bluebits | Grundfos GO Solar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/grundfos-go-solar/id1570023779/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 47 MB | 197 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Talgil](https://appshunter.io/developer/1139561018) | [Grundfos Holding A/S](https://appshunter.io/developer/940210934) |

## What reviewers say

### Bluebits

[App page](https://appshunter.io/ios/app/bluebits/id1181359007)

**Features:** macOS Compatibility

**In-app purchases:** none


### Grundfos GO Solar

[App page](https://appshunter.io/ios/app/grundfos-go-solar/id1570023779)

This app helps users quickly and easily size solar pumps for various needs, whether by existing pumps, solar panels, or application specifications. It includes tools for calculating water needs and syncs with Grundfos platforms for data saving.

**Highlights:** Quick solar pump sizing, Size by pump, panels, or application, Built-in tools and calculators, Water needs calculation, Sync with Grundfos platforms, Offline functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is Bluebits free?

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

### Is Grundfos GO Solar free?

Grundfos GO Solar is free to download, with no in-app purchases.

### Do Bluebits or Grundfos GO Solar have ads?

Neither Bluebits nor Grundfos GO Solar shows ads.

### Which is updated more often, Bluebits or Grundfos GO Solar?

Bluebits ships an update every 16 months, and Grundfos GO Solar every 3 months. Most recently, Bluebits was updated on October 26, 2026 and Grundfos GO Solar on October 21, 2026.

---

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