Comparison

PV Calculator. vs SolarSpec Pro

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

Head to head
About

PV Calculator.

This tool simplifies solar photovoltaic system design and analysis for professionals and students. It offers a comprehensive Energy Hub with multiple calculators, providing instant results, visual charts, and clear insights for efficient PV system planning and optimization.

Highlights
  • Energy Hub with multiple solar calculators
  • Calculate solar panel power output
  • Analyze energy generation (daily, monthly, yearly)
  • Design solar array size
  • Calculate system voltage and configuration
  • Instant calculation results
  • Visual charts and performance summaries
Features
Read full description

PV Calculator is a smart and easy-to-use solar photovoltaic calculation tool designed for solar professionals, engineers, students, and renewable energy planners. The app provides a complete Energy Hub with multiple solar calculators that help you design, analyze, and optimize PV systems efficiently. With clear inputs, visual charts, and instant results, PV Calculator simplifies complex solar calculations into an intuitive experience. Key Modules & Features: Access all essential PV calculators from a single dashboard for quick system planning. Calculate solar panel power output and view performance distribution with clear visual insights. Analyze daily, monthly, and yearly energy generation with easy-to-read charts. Design solar array size based on system parameters, efficiency, and environmental factors. Calculate required system voltage and electrical configuration for PV installations. Highlights: - Instant calculation results - Visual charts and performance summaries - Clean, modern, and easy UI - Accurate solar PV system planning - Ideal for rooftop and small-scale solar projects - Useful for education, planning, and field reference PV Calculator helps you make informed decisions when designing and evaluating solar photovoltaic systems—quickly, accurately, and confidently. in-app purchase included 
 Lifetime to Remove Ads Privacy Policy : https://docs.google.com/document/d/1Dn1gNdDP2AHL7sg-px4rxdLAcoGHlNB8/edit#heading=h.1ionsc3v3xmq Terms and Condition : https://docs.google.com/document/d/1t-LREPKByKaM0UkbIo4o0E1gdAYs21Oe30EfGxenEss/edit?usp=sharing

About

SolarSpec Pro

Features
Read full description

SolarSpec Pro is a comprehensive solar photovoltaic system design tool for solar engineers and installers. Calculate panel configurations, inverter matching, shadow spacing, battery storage, and ROI analysis. Key Features: • Panel Calculator – Size your solar array based on energy needs and location • Inverter Match – Verify string configurations against inverter specifications • Shadow Spacing – Calculate optimal row spacing to minimize shading losses • Battery Design – Size battery banks for off-grid and hybrid systems • ROI Analysis – Estimate payback period and lifetime savings Professional-grade tools in a clean, intuitive interface.

Screenshots

PV Calculator.4 screens
SolarSpec Pro4 screens

Verdict

The call

The clearest difference is price: PV Calculator. at Free against SolarSpec Pro's $1.99. PV Calculator. also leads on iOS requirement (13.0 vs 17.0). SolarSpec Pro's advantage is in-app purchases (none vs 1) and update cadence (every 2 months vs every 7 months). On ads and device support 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

PV Calculator. is free to download; SolarSpec Pro costs $1.99 up front. PV Calculator. sells 1 one-off in-app purchase. SolarSpec Pro asks for nothing beyond the download.

UpkeepUpdate frequency

PV Calculator. ships an update every 7 months, SolarSpec Pro every 2 months. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 5 level
PV Calculator. versus SolarSpec Pro: the parameters behind the verdict, then further details
ParameterPV Calculator.SolarSpec Pro
PriceFree — better$1.99
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 7 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size52 MB1 MB
Age rating4+4+
DeveloperNanjibhai GorasiyaGuanghe Xu (tianjin) Digital Technology Co., Ltd

In-app purchases

1 purchases

PV Calculator.

One-time1
  • Lifetime premium$9.99
None

SolarSpec Pro

No in-app purchases

Questions

Is PV Calculator. free?
PV Calculator. is free to download, with in-app purchases available.
Is SolarSpec Pro free?
SolarSpec Pro costs $1.99, with no in-app purchases.
Do PV Calculator. or SolarSpec Pro have ads?
Neither PV Calculator. nor SolarSpec Pro shows ads.
Which is updated more often, PV Calculator. or SolarSpec Pro?
PV Calculator. ships an update every 7 months, and SolarSpec Pro every 2 months. Most recently, PV Calculator. was updated on November 5, 2026 and SolarSpec Pro on October 31, 2026.

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