SolarEdge Mapper vs Sunnova Catalyst
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SolarEdge Mapper
Streamline new system registration for installers by mapping physical layouts directly within the cloud monitoring platform. Create, edit, and verify system layouts on-site, and easily scan and assign power optimizer serial numbers to their correct locations.
- Onsite system registration
- System physical layout creation
- Onsite layout editing
- Onsite layout verification
- Power optimizer serial number scanning
- Offline functionality
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The site mapper allows SolarEdge installers to streamline the registration of a new system by mapping its physical layout in the SolarEdge cloud-based monitoring platform. This application is integrated with the SolarEdge monitoring platform and enables the following functionality: • Simple onsite registration of new systems. • Creation, editing and on-site verification of system physical layout. • Scanning and assigning SolarEdge power optimizer serial number to the right location in the system physical layout. • The scanning can be done by utilizing the mobile device’s integrated camera or with an external Bluetooth connected scanner. • Working off-line with no data connection. The data is stored locally on the mobile device and allows data synchronization with the SolarEdge monitoring platform when data connection is available.
Sunnova Catalyst
This app simplifies the solar installation review process by allowing users to capture and track commissioning photos. It streamlines the workflow for solar professionals.
- Streamlines commissioning process
- Capture commissioning photos
- Track solar installation review
- Solar professional workflow optimization
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The Sunnova Catalyst mobile app streamlines the Sunnova commissioning process to help users capture their commissioning photos and track their solar installation review.
Screenshots
Verdict
The clearest difference is ratings volume: SolarEdge Mapper at 651 against Sunnova Catalyst's 43. Sunnova Catalyst's advantage is update cadence (fortnightly vs every 5 weeks). On price, rating, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Sunnova Catalyst holds the better App Store score, 4.6 against 4.5. That said, the two scores are not equally well evidenced: SolarEdge Mapper has 651 ratings behind it against 43, so its average is the more settled of the two.
SolarEdge Mapper ships an update every 5 weeks, Sunnova Catalyst fortnightly. The most recent releases landed on October 9, 2026 and September 29, 2026 respectively.
| Parameter | SolarEdge Mapper | Sunnova Catalyst |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (651 ratings) | 4.6 (43 ratings) — better |
| Positive reviews | 29.6% of reviews | — |
| Number of ratings | 651 — better | 43 |
| Update frequency | Every 5 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 13.4 |
| Further details — not scored | ||
| Size | 50 MB | 73 MB |
| Age rating | 4+ | 4+ |
| Developer | SolarEdge Technologies | Sunnova Energy Corp |
Customer experience
SolarEdge Mapper
Sunnova Catalyst
Bugs and requests
SolarEdge Mapper
Reported bugs
10 issues- Error 1001 when loading sites
- Site creation fails with errors
- Camera stops working for barcode scanning
- Endless loading screens when creating sites
- Invalid state validation errors in dropdown menus
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- Satellite image portion not working properly
- Login failures
- App crashes constantly
- Unable to upload site data
- Unexpected behaviors and finicky scanner
Requested features
9 requests- iPad/tablet version of the app
- Ability to delete old sites and declutter home screen
- Array number option in array builder
- Easier scanning and array building process
- Customer/owner read-only access to mapper functions
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- Download/export data to spreadsheet format
- Traditional barcode scanning support
- Simplified module moving and deletion workflow
- Developer responses to user reviews
Sunnova Catalyst
Not enough reviews yet to summarise bugs or requests.
In-app purchases
SolarEdge Mapper
No in-app purchases
Sunnova Catalyst
No in-app purchases
Questions
Is SolarEdge Mapper free?
Is Sunnova Catalyst free?
Which has better reviews, SolarEdge Mapper or Sunnova Catalyst?
Do SolarEdge Mapper or Sunnova Catalyst have ads?
Which is updated more often, SolarEdge Mapper or Sunnova Catalyst?
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