Comparison

PV Go vs QFlash

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

Head to head
About

PV Go

This AI-powered system optimizes photovoltaic (PV) operations of any scale by intelligently managing data to prevent performance decline and latency. It predicts energy output with high accuracy and provides data-backed visualizations for efficient O&M ticket dispatch.

Highlights
  • AI-powered energy output prediction
  • Intelligent data management
  • O&M ticket dispatch system
  • Data-backed visualizations
  • Real-time GUI monitoring
  • Topology and heatmap views
Features
Read full description

# Perfect for distributed PV operations at any scale PV Go O&M system is designed to solve the pain points of most large-scale PV operation. As PV plants grow, operators will see a huge decline in system performance as data grows, especially when their PV plants are distributed across different geolocations. As a result, the latency will increase and data loss will significantly impact operational efficiency. Our PV O&M system fundamentally solves these issues through an intelligent data-management system. It delivers the same performance for PV operations of any size or distribution. # PV energy output optimized by AI Photon’s AI engine learns from historical and real-time data to predict PV energy output with 95 % accuracy for the next 5 minutes. PV operators can plan energy exchange and manage risk more effectively with this capability. # O&M Ticket Dispatch System Data-backed visualizations improve decision-making and shorten response times. An experienced service manager can locate the problem within a few seconds through our system. Inexperienced starters can achieve the same results as other team members when looking for solutions. # Real-time data in GUI β€’ Topology view to monitor every detail of a PV operation β€’ Video streaming (HD) to enable surveillance functionality (available on request) β€’ Heatmap view to visualize the energy-output efficiency of each PV plant

About

QFlash

Features
Read full description

QFlash is the ultimate app for anyone who wants to learn faster and smarter. It combines the simplicity of flashcards with the power of AI to create a unique study experience. β€’ Spaced Repetition – review smarter, remember longer β€’ Auto Card Generation – new cards from your study conversations β€’ AI-Powered Chat/Image – help you solve problem by text and image

Screenshots

PV Go1 screens
QFlash4 screens

Verdict

The call

The clearest difference is in-app purchases: PV Go at none against QFlash's 2. PV Go also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.6). QFlash's advantage is ads (none vs shown) and update cadence (every 9 days vs every 6 months). On price there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. QFlash sells 2 in-app purchases, starting at $4.99 per month. PV Go asks for nothing beyond the download.

UpkeepUpdate frequency

PV Go ships an update every 6 months, QFlash every 9 days. The most recent releases landed on October 9, 2026 and October 14, 2026 respectively.

Scorecard5 real differences Β· 3 level
PV Go versus QFlash: the parameters behind the verdict, then further details
ParameterPV GoQFlash
PriceFreeFree
Positive reviews100.0% of reviewsβ€”
Update frequencyEvery 6 monthsEvery 9 days β€” better
AdsYesNo β€” better
In-app purchasesNo β€” betterYes
MonetizationAd-supportedβ€”
DevicesiPhone, iPad, iPod β€” betteriPhone
Requires iOS15.1 β€” better17.6
Further details β€” not scored
Size44 MB17 MB
Age rating4+4+
DeveloperThingnario co. LTDPokai Lee

In-app purchases

None

PV Go

No in-app purchases

2 purchases

QFlash

Subscriptions2
  • Premium$4.991 Month
  • Premium$34.991 Year

Questions

Is PV Go free?
PV Go is free to download, with no in-app purchases.
Is QFlash free?
QFlash is free to download, with in-app purchases available.
Do PV Go or QFlash have ads?
PV Go shows ads; QFlash does not.
Which is updated more often, PV Go or QFlash?
PV Go ships an update every 6 months, and QFlash every 9 days. Most recently, PV Go was updated on October 9, 2026 and QFlash on October 14, 2026.

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