PriorityLab vs Sprk Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PriorityLab
This app simplifies mold testing for professionals by digitizing the Chain of Custody process. Log sample data, capture images, and submit electronic forms directly from your mobile device, eliminating the need for paper forms.
- Electronic Chain of Custody submission
- Log sample data with photos
- Pre-setup inspections
- Download inspections to phone
- Streamlined workflow
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Performing mold testing has never been easier whether you are a home inspector or mold remediator. Streamline the Chain of Custody process by submitting electronically from your phone. No need to print and fill out a COC any more. Setup your inspections before hand and download them to your phone. Log sample data including taking pictures of the location and the sample so you don't have to take down any serial numbers. Submit your COC through your phone and mail in the samples along with the COC confirmation you receive with your electronic submission.
Sprk Pro
This app helps maximize the value of solar-powered homes by assessing energy efficiency and property value. It provides custom reports on solar performance, longevity, and savings opportunities. Stay informed and protect investments.
- Assess energy efficiency
- Understand property value
- Discover savings opportunities
- Generate custom solar reports
- Analyze solar performance
- Track solar longevity
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Unlock the full potential of a solar home with Sprk– for maximizing solar and energy efficient home transactions. Assess energy efficiency, understand property value, and discover new ways to save. Use Sprk Reports to provide custom insights into a home’s solar performance, longevity, and value. Stay informed, save money, and help your clients protect their investments.
Screenshots
Verdict
The clearest difference is rating: Sprk Pro at 4.0 against PriorityLab's 3.3. Sprk Pro also leads on review sentiment (100% vs 64%) and update cadence (every 3 weeks vs every 2 months). PriorityLab's advantage is iOS requirement (13.0 vs 15.1). On price, ratings volume, 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.
Sprk Pro holds the better App Store score, 4.0 against 3.3. Both are backed by a comparable volume of ratings — 7 and 4 respectively. Written reviews point the same way: 64% of PriorityLab's written reviews are positive against 100% of Sprk Pro's.
PriorityLab ships an update every 2 months, Sprk Pro every 3 weeks. The most recent releases landed on September 14, 2026 and August 12, 2026 respectively.
| Parameter | PriorityLab | Sprk Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (7 ratings) | 4.0 (4 ratings) — better |
| Positive reviews | 63.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 7 — better | 4 |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 14 MB | 154 MB |
| Age rating | 4+ | 4+ |
| Developer | PriorityLab, LLC | Spark Certified Inc |
Customer experience
PriorityLab
Sprk Pro
In-app purchases
PriorityLab
No in-app purchases
Sprk Pro
No in-app purchases
Questions
Is PriorityLab free?
Is Sprk Pro free?
Which has better reviews, PriorityLab or Sprk Pro?
Do PriorityLab or Sprk Pro have ads?
Which is updated more often, PriorityLab or Sprk Pro?
Other comparisons
