Comparison

Sprk Pro vs Solar Spek

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Assess energy efficiency
  • Understand property value
  • Discover savings opportunities
  • Generate custom solar reports
  • Analyze solar performance
  • Track solar longevity
Features
Read full description

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.

About

Solar Spek

Streamline residential solar inspections with this field tool. It guides users through data and photo capture, with licensed professionals generating detailed client reports.

Highlights
  • Guided data and photo capture
  • Professional report generation
  • Expert review by licensed professionals
  • Simplifies complex solar evaluations
  • Client-ready inspection documents
Features
Read full description

Solar Spek: Residential Solar Inspections Made Simple Take the guesswork out of solar. Solar Spek is the premier field tool designed specifically for home inspectors to conduct thorough, professional residential solar inspections with confidence. You don't need to be a solar expert to deliver expert results—Solar Spek guides you through every step of the process. The app prompts you to capture specific data points and photos required for a comprehensive evaluation. Once your data is submitted, our team of licensed solar professionals review the information to generate a detailed, client-ready report—mirroring the quality and depth of a standard home inspection document. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Sprk Pro4 screens
Solar Spek4 screens

Verdict

The call

The clearest difference is rating: Solar Spek at 5.0 against Sprk Pro's 4.0. Sprk Pro's advantage is in-app purchases (none vs 6). On price, ratings volume, update cadence and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Solar Spek sells 6 in-app purchases, starting at $9.99 per month. Sprk Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Solar Spek holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 4 and 2 respectively.

UpkeepUpdate frequency

Sprk Pro ships an update every 3 weeks, Solar Spek fortnightly. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

Scorecard3 real differences · 7 level
Sprk Pro versus Solar Spek: the parameters behind the verdict, then further details
ParameterSprk ProSolar Spek
PriceFreeFree
Rating4.0 (4 ratings)5.0 (2 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings4 — better2
Update frequencyEvery 3 weeksFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.115.1
Further details — not scored
Size154 MB56 MB
Age rating4+4+
DeveloperSprk RealtySolar Spek LLC

Customer experience

Sprk Pro

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Solar Spek

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Sprk Pro

No in-app purchases

6 purchases

Solar Spek

Subscriptions6
  • Basic Monthly$9.991 Month
  • Pro Monthly$19.991 Month
  • Enterprise Monthly$69.991 Month
Show 3 more
  • Basic Annual$115.991 Year
  • Pro Annual$219.991 Year
  • Enterprise Annual$709.991 Year

Questions

Is Sprk Pro free?
Sprk Pro is free to download, with no in-app purchases.
Is Solar Spek free?
Solar Spek is free to download, with in-app purchases available.
Which has better reviews, Sprk Pro or Solar Spek?
Solar Spek is rated higher. Sprk Pro averages 4.0 out of 5 from 4 ratings, while Solar Spek averages 5.0 from 2 ratings.
Do Sprk Pro or Solar Spek have ads?
Neither Sprk Pro nor Solar Spek shows ads.
Which is updated more often, Sprk Pro or Solar Spek?
Sprk Pro ships an update every 3 weeks, and Solar Spek fortnightly. Most recently, Sprk Pro was updated on October 24, 2026 and Solar Spek on October 18, 2026.

Other comparisons