Comparison

PV Master vs RIO Data View

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

Head to head
About

PV Master

This app helps you harness solar energy by providing accurate solar data, weather integration, and tools to optimize your solar panel setup. It offers comprehensive calculators for energy needs, panel requirements, and battery storage, along with guides and a glossary for informed decisions.

Highlights
  • Accurate solar data based on location
  • Weather data integration
  • Solar potential insights
  • Panel positioning tool
  • Comprehensive energy calculators
  • Guides, FAQs, and glossary
Features
Read full description

Thinking about going solar, or trying to get more out of the panels you already have? PV Master turns confusing solar numbers into clear decisions, so you spend less on power and waste less of the sun. Using just your location, PV Master shows you what your roof can really do, when to rely on your own panels, and when to lean on the grid. Whether you are planning your first system or fine tuning an existing one, you get answers you can act on. What PV Master helps you do: Plan with real numbers, not guesses. Get accurate, location based solar data plus a live grid forecast, so you know the best times to use your own power and when cheaper grid power makes sense. Position your panels for maximum output. The built in compass and tilt tool helps you find the angle that captures the most sun all year long. Size your system with confidence. Simple calculators work out how much energy you need, how many panels and batteries it takes, and what it will cost, so you can weigh the ROI before you spend a cent. Get more from every sunny day. Local weather is built in, so you can see how conditions affect production and plan around them. Learn as you go. Clear guides, FAQs, and a plain language glossary explain every solar and photovoltaic term, so nothing holds you back. It all lives in one friendly app, from first idea to finished install, with information that is genuinely easy to read. Download PV Master today and start making smarter, greener energy decisions. Privacy Policy: https://BigBalli.com/privacy Terms of Use: http://www.apple.com/legal/itunes/appstore/dev/stdeula Payment will be charged to your Apple ID at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions in your Account Settings on the App Store after purchase. Any unused portion of a free trial is forfeited when purchasing a subscription. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://BigBalli.com/privacy

About

RIO Data View

Features
Read full description

RIO Data View app plots real time or stored data of your remote I/O modules and allows control relays or digital outputs channel over the network on your mobile phone. Currently supported remote I/O Modules are Teracom's TCW241 - Ethernet I/O modules and RPIO - Raspberry Pi + Automation Hat remote I/O module. The App can plot data by selecting channels on a screw with a graph view or list view. When relays or digital output channels were selected, the app can control the channels on or off remotely. Feature Realtime Plots Stored data plots Timelined line graph with coloured lines, symbols...etc.f Conversion can be applied to the data before plotting Support software RIO DLUtility: data logger for your remote I/O modules and serve data to this RIO Data View App. RIO Data View Mac: RIO Data View app for macOS

Screenshots

PV Master4 screens
RIO Data View4 screens

Verdict

The call

The clearest difference is in-app purchases: RIO Data View at none against PV Master's 4. RIO Data View also leads on iOS requirement (14.5 vs 17.0). PV Master's advantage is update cadence (every 8 days vs every 3 months). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. PV Master sells 4 in-app purchases, starting at $4.99 per month. RIO Data View asks for nothing beyond the download.

UpkeepUpdate frequency

PV Master ships an update every 8 days, RIO Data View every 3 months. The most recent releases landed on October 3, 2026 and October 6, 2026 respectively.

Scorecard3 real differences · 7 level
PV Master versus RIO Data View: the parameters behind the verdict, then further details
ParameterPV MasterRIO Data View
PriceFreeFree
Rating4.3 (23 ratings) — better—
Positive reviews17.1% of reviews—
Number of ratings23 — better—
Update frequencyEvery 8 days — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.014.5 — better
Further details — not scored
Size25 MB4 MB
Age rating4+4+
DeveloperBigBalli Consulting llcJapan Vacuum Instruments Ltd.

In-app purchases

4 purchases

PV Master

Subscriptions2
  • Full Unlock$4.991 Month
  • Yearly$49.991 Year
One-time2
  • Location Solar Panel Data$0.99
  • Lifetime$59.99
None

RIO Data View

No in-app purchases

Questions

Is PV Master free?
PV Master is free to download, with in-app purchases available.
Is RIO Data View free?
RIO Data View is free to download, with no in-app purchases.
Do PV Master or RIO Data View have ads?
Neither PV Master nor RIO Data View shows ads.
Which is updated more often, PV Master or RIO Data View?
PV Master ships an update every 8 days, and RIO Data View every 3 months. Most recently, PV Master was updated on October 3, 2026 and RIO Data View on October 6, 2026.

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