OpenSolar vs Aisle Planner: Which is Better in 2026?
Choosing between OpenSolar and Aisle Planner comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Bottom line: OpenSolar is our overall pick for sales workflows. Pick Aisle Planner if you need CRM.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
OpenSolar
Accelerating solar adoption globally with free software for design, sales, and project management.
Best for you if:
- • You need something completely free
- • You need sales features specifically
- • Free software for solar professionals to design, sell, and manage projects.
- • Offers an end-to-end workflow including AI lead gen, auto design, and integrated finance.
Aisle Planner
The most comprehensive booking and planning software platform for today's event professional.
Best for you if:
- • You need CRM features specifically
- • All-in-one platform for event professionals covering sales, planning, and project management.
- • Streamlines lead management, proposals, contracts, and payment processing.
| At a Glance |  OpenSolar |  Aisle Planner |
|---|---|---|
Starts at | FreeFree tier available | $49.99/moSalesEssentials (Up To 15 Projects) |
Best For | Sales | CRM |
Rating | - | 4.4/5 |
Free plan | Yes | No |
Choose OpenSolar or Aisle Planner?
Choose OpenSolar if
Accelerating solar adoption globally with free software for design, sales, and project management.
- Core software is free of charge for solar professionals.
- Comprehensive end-to-end solution for the entire solar workflow.
- Regular product updates introduce new features and improvements.
- You want a fully free tool (Aisle Planner requires payment)
- Your work is sales-shaped, not CRM-shaped
Choose Aisle Planner if
The most comprehensive booking and planning software platform for today's event professional.
- Comprehensive suite of tools covering the entire event lifecycle.
- Streamlines sales process with integrated booking and payment features.
- Enhances collaboration with clients, team, and partners.
- Your work is CRM-shaped, not sales-shaped
| Feature | OpenSolar | Aisle Planner |
|---|---|---|
| Pricing Model | Free | Paid |
| User Rating | No ratings yet | ★4.4/5 22 reviews |
| Categories | SalesProject Management | CRMProject Management |
In-Depth Analysis
OpenSolar
Accelerating solar adoption globally with free software for design, sales, and project management.
Strengths
- +Core software is free of charge for solar professionals.
- +Comprehensive end-to-end solution for the entire solar workflow.
- +Regular product updates introduce new features and improvements.
- +Supports integration with third-party tools and financial services.
- +Aims to increase profitability and efficiency for solar businesses.
Weaknesses
- -API access and app connectors will incur charges starting April 2026.
- -Some advanced features or integrations may be region-specific (e.g., UK Finance Marketplace).
Key features
Aisle Planner
The most comprehensive booking and planning software platform for today's event professional.
Strengths
- +Comprehensive suite of tools covering the entire event lifecycle.
- +Streamlines sales process with integrated booking and payment features.
- +Enhances collaboration with clients, team, and partners.
- +Offers design tools to visualize event concepts.
- +Customizable for various event industry roles.
Weaknesses
- -Requires a credit card for the free trial, which might deter some users.
- -No explicit mention of a free tier after the trial.
Key features
Pricing: OpenSolar vs Aisle Planner
| Plan | OpenSolar | Aisle Planner |
|---|---|---|
| Tier 1 | Free Free | $49.99 / Mo SalesEssentials (Up To 15 Projects) |
| Tier 2 | N/A | $69.99 / Mo SalesEssentials (16 - 25 Projects) |
| Tier 3 | N/A | $109.99 / Mo SalesEssentials (26 - 50 Projects) |
| Tier 4 | N/A | $164.99 / Mo SalesEssentials (51 - 100 Projects) |
| Tier 5 | N/A | $229.99 / Mo SalesEssentials (100+ Projects) |
Pricing verified from each vendor's public pricing page. Compare in detail on OpenSolar pricing and Aisle Planner pricing.
Who Should Use What?
On a budget?
OpenSolar is free. Aisle Planner is paid.
Go with: OpenSolar
Want the highest-rated option?
Aisle Planner is rated 4.4/5. OpenSolar has no ratings yet.
Go with: Aisle Planner
Value user reviews?
OpenSolar: no ratings yet. Aisle Planner: 22 reviews (4.4/5).
Go with: Aisle Planner
3 Questions to Help You Decide
What's your budget?
OpenSolar is free. Aisle Planner is paid. Go with OpenSolar if free matters most.
What's your use case?
OpenSolar is a sales tool. Aisle Planner is in CRM. Pick the category that matches your needs.
How important are ratings?
Aisle Planner is rated 4.4/5; OpenSolar has no ratings yet.
Key Takeaways
OpenSolar
- Completely free
- Our pick for this comparison
Aisle Planner
- Better fit for CRM
The Bottom Line
OpenSolar is our pick.
Frequently Asked Questions
Is OpenSolar or Aisle Planner better?
OpenSolar is rated in our evaluation. OpenSolar is free and Aisle Planner is paid.
What are OpenSolar and Aisle Planner used for?
OpenSolar: Accelerating solar adoption globally with free software for design, sales, and project management.. Aisle Planner: The most comprehensive booking and planning software platform for today's event professional..
What does OpenSolar cost vs Aisle Planner?
OpenSolar is completely free. Aisle Planner is a paid tool. Visit their websites for detailed pricing.