# OpenSolar vs Sales Pro BT

The clearest difference is rating: OpenSolar at 4.4 against Sales Pro BT's 3.7. OpenSolar also leads on ratings volume (10 vs 3). Sales Pro BT's advantage is update cadence (every 10 days vs every 6 weeks). 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.

OpenSolar holds the better App Store score, 4.4 against 3.7. Both are backed by a comparable volume of ratings — 10 and 3 respectively.

OpenSolar ships an update every 6 weeks, Sales Pro BT every 10 days. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | OpenSolar | Sales Pro BT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (10 ratings)](https://appshunter.io/ios/app/opensolar/id1410085935/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/sales-pro-bt/id6736897562/reviews) |
| Number of ratings | **10** | 3 |
| Positive reviews | 45.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 10 days** |
| Monetization | Free | Free |
| Size | 216 MB | 50 MB |
| Requires iOS | **15.7** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [OpenSolar Pty Ltd](https://appshunter.io/developer/1340033321) | [Bamboo Tech LLC](https://appshunter.io/developer/1567084616) |

## What reviewers say

### OpenSolar

[App page](https://appshunter.io/ios/app/opensolar/id1410085935)

This free application provides a comprehensive solution for designing and selling solar energy systems. It offers end-to-end functionality for solar professionals.

**Highlights:** End-to-end solar design, Sales application, Free to use, Comprehensive functionality

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

**In-app purchases:** none


### Sales Pro BT

[App page](https://appshunter.io/ios/app/sales-pro-bt/id6736897562)

This application helps sales teams track their door-to-door and field sales activities. It provides essential information to sales representatives, aiming to improve lead generation and overall sales performance.

**Highlights:** Door-to-door sales tracking, Field sales activity management, Lead generation tools, Sales representative information, Direct campaign tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is OpenSolar free?

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

### Is Sales Pro BT free?

Sales Pro BT is free to download, with no in-app purchases.

### Which has better reviews, OpenSolar or Sales Pro BT?

OpenSolar is rated higher. OpenSolar averages 4.4 out of 5 from 10 ratings, while Sales Pro BT averages 3.7 from 3 ratings.

### Do OpenSolar or Sales Pro BT have ads?

Neither OpenSolar nor Sales Pro BT shows ads.

### Which is updated more often, OpenSolar or Sales Pro BT?

OpenSolar ships an update every 6 weeks, and Sales Pro BT every 10 days. Most recently, OpenSolar was updated on October 24, 2026 and Sales Pro BT on October 7, 2026.

---

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