# Boston Solar US vs Constructors Prime

The clearest difference is iOS requirement: Constructors Prime at 13.0 against Boston Solar US's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Boston Solar US ships an update monthly, Constructors Prime every 5 weeks. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Boston Solar US | Constructors Prime |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (4 ratings)](https://appshunter.io/ios/app/boston-solar-us/id1469858597/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Free | — |
| Size | 38 MB | 37 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Boston Solar US](https://appshunter.io/developer/1469858596) | [Concrete Constructors LLC](https://appshunter.io/developer/1639523872) |

## What reviewers say

### Boston Solar US

[App page](https://appshunter.io/ios/app/boston-solar-us/id1469858597)

This app facilitates direct communication between users and Boston Solar representatives. It allows for easy registration and messaging with a selected sales rep, providing a convenient mobile channel for interaction.

**Highlights:** Direct messaging with sales reps, User registration, Mobile communication, Sales representative selection

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

**In-app purchases:** none


### Constructors Prime

[App page](https://appshunter.io/ios/app/constructors-prime/id1639523870)

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

**In-app purchases:** none


## Frequently asked questions

### Is Boston Solar US free?

Boston Solar US is free to download, with no in-app purchases.

### Is Constructors Prime free?

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

### Do Boston Solar US or Constructors Prime have ads?

Neither Boston Solar US nor Constructors Prime shows ads.

### Which is updated more often, Boston Solar US or Constructors Prime?

Boston Solar US ships an update monthly, and Constructors Prime every 5 weeks. Most recently, Boston Solar US was updated on October 24, 2026 and Constructors Prime on October 9, 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.*