PV Calculator. vs Grid Zero
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
Grid Zero
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GridZero helps EPC teams go from concept to client-ready solar proposals - faster and with precision. Combining 3D layouts, system optimization, financial analysis, and proposal generation into one continuous workflow. Designed for solar EPC professionals. GridZero is evolving to support the full solar project lifecycle. This app is exclusively available to existing GridZero B2B client organizations. Access is provisioned by GridZero for authorized team members.
Screenshots
Verdict
The clearest difference is in-app purchases: Grid Zero at none against PV Calculator.'s 1. Grid Zero also leads on update cadence (every 5 days vs every 7 months). PV Calculator.'s advantage is iOS requirement (13.0 vs 15.1). On price, 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
Both are free to download. PV Calculator. sells 1 one-off in-app purchase. Grid Zero asks for nothing beyond the download.
PV Calculator. ships an update every 7 months, Grid Zero every 5 days. The most recent releases landed on August 20, 2026 and September 8, 2026 respectively.
| Parameter | PV Calculator. | Grid Zero |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 7 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 52 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Nanjibhai Gorasiya | GRIDZERO NEW ENERGY SOLUTIONS PRIVATE LIMITED |
In-app purchases
PV Calculator.
- Lifetime premium$9.99
Grid Zero
No in-app purchases









