PV Master vs HoleCopy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Accurate solar data based on location
- Weather data integration
- Solar potential insights
- Panel positioning tool
- Comprehensive energy calculators
- Guides, FAQs, and glossary
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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
HoleCopy
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Replacing a bracket, a hinge or a speaker plate? The holes are the hard part. Measuring them one by one with a ruler stacks up error until the last hole is off. HoleCopy copies the pattern instead of measuring it: lay the old part on the reference sheet, take one photo, and get every hole center and diameter in real millimetres. HOW IT WORKS 1. Print the A4 or US Letter reference sheet at 100% 2. Lay the old part on the sheet and take one photo 3. HoleCopy squares up the perspective and detects round through-holes 4. Check the result on screen: move a center, resize a hole, add one the camera missed, delete one it invented 5. Export a true 1:1 PDF or SVG, tape it to the new material and drill WHAT YOU CAN DO BEFORE EXPORTING Photographing the part, perspective correction, hole detection, editing and the output preview all work with any part you try. You can see whether HoleCopy reads your part correctly before you export anything. WHAT UNLOCKING EXPORT ADDS Saving, sharing and AirPrinting the actual-size PDF or SVG, as often as you like. That includes patterns larger than one sheet, split across pages with overlap marks and alignment crosses, ready to tape together. BUILT FOR THE WORKSHOP - Mirror the template for the back side of a part - SVG export for vector programs - A 100 mm and 1 inch check bar on every page, so you can confirm your printer did not scale it - Everything is processed on your device; photos never leave it WHO IT IS FOR Furniture repair, woodworking and metalwork DIY: brackets, hinges, handles, table legs, speaker cabinets, control panels, car or motorcycle mounts, gasket and flange hole patterns. BEFORE YOU DRILL HoleCopy works with flat parts and round through-holes of 3 mm and larger, when the part and the reference sheet fit in one photo. It is a positioning aid, not a guarantee of precision: check that the printed bar measures exactly 100 mm and drill a small pilot hole first when it matters. Not intended for safety-critical parts.
Screenshots
Verdict
The clearest difference is price: PV Master at Free against HoleCopy's $1.99. PV Master also leads on update cadence (every 8 days vs monthly). HoleCopy's advantage is in-app purchases (none vs 4) and chart position (#200 vs unranked). On 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
PV Master is free to download; HoleCopy costs $1.99 up front. PV Master sells 4 in-app purchases, starting at $4.99 per month. HoleCopy asks for nothing beyond the download.
PV Master ships an update every 8 days, HoleCopy monthly. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.
| Parameter | PV Master | HoleCopy |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.3 (23 ratings) — better | — |
| Positive reviews | 17.1% of reviews | — |
| Number of ratings | 23 — better | — |
| Update frequency | Every 8 days — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Best chart rank | — | #200 — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 25 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | BigBalli Consulting llc | Netflowers Inc. |
In-app purchases
PV Master
- Full Unlock$4.991 Month
- Yearly$49.991 Year
- Location Solar Panel Data$0.99
- Lifetime$59.99
HoleCopy
No in-app purchases









