Comparison

PV Calculator. vs Cloud OS

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

Cloud OS

Features
Read full description

The Cloud OS APP aims to provide a convenient mobile solution for network device management. Its main functions include network device management, network speed optimization and acceleration, remote operation and maintenance, industry information and solutions, etc. It can real-time view device status, traffic data, etc; Equipped with quick configuration function, it can easily set network parameters.

Screenshots

PV Calculator.4 screens
Cloud OS4 screens

Verdict

The call

The clearest difference is in-app purchases: Cloud OS at none against PV Calculator.'s 1. Cloud OS also leads on update cadence (every 2 months vs every 7 months). On price, ads, device support and iOS requirement 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. PV Calculator. sells 1 one-off in-app purchase. Cloud OS asks for nothing beyond the download.

UpkeepUpdate frequency

PV Calculator. ships an update every 7 months, Cloud OS every 2 months. The most recent releases landed on August 20, 2026 and September 8, 2026 respectively.

Scorecard2 real differences · 7 level
PV Calculator. versus Cloud OS: the parameters behind the verdict, then further details
ParameterPV Calculator.Cloud OS
PriceFreeFree
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, iPod
Requires iOS13.0 — better14
Further details — not scored
Size52 MB102 MB
Age rating4+17+
DeveloperNanjibhai Gorasiya桢田科技(深圳)有限公司

In-app purchases

1 purchases

PV Calculator.

One-time1
  • Lifetime premium$9.99
None

Cloud OS

No in-app purchases

Questions

Is PV Calculator. free?
PV Calculator. is free to download, with in-app purchases available.
Is Cloud OS free?
Cloud OS is free to download, with no in-app purchases.
Do PV Calculator. or Cloud OS have ads?
Neither PV Calculator. nor Cloud OS shows ads.
Which is updated more often, PV Calculator. or Cloud OS?
PV Calculator. ships an update every 7 months, and Cloud OS every 2 months. Most recently, PV Calculator. was updated on August 20, 2026 and Cloud OS on September 8, 2026.

Other comparisons