Visitor Book App vs SolarCalc ROI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Visitor Book App
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Are you an Exhibitor ? This app is For you. Are you a manufacturer ? This app is For you. Are you Sales Executive? This app is For you. Are you Shop/Show Room Owner? This app is For you. A Complete solution for your Sales Management Activities - Scan Business Card - Enter Visitor Details - Export in XLS - Client Followup Reminder - Send message to client over whatsapp - Send Automated Emails - Secure data in local phone memory - App works Offline No More manual work for visitor details at Exhibitions & any kind of Sales Enquiries Keep an Organized Footfall data at your stall or showroom Using Tablet or Mobile phone , Setup Follow up Reminders, Send WhatsApp Messages, Emails , Get Detailed Analytics & more. Scan Business card/ Visiting card & Auto capture details , Avoid duplicate work & data entry of visitors, Simply Either Give tablet to your visitors or Enter yourself. Add visitor detail , Scan Business Card & Export all data as xls & get all data into your email with single click. Send Automated Emails to Visitors at Exhibitions. Enjoy Visitor Book App!! *** New Sales Management Tool ****
SolarCalc ROI
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SolarCalc ROI helps you calculate how much you can save by going solar — in minutes. Pick your location on the map, enter your monthly electricity bill, and get a detailed solar ROI estimate including: • System size & panel count • Annual energy production • Annual savings in your local currency • Installation cost estimate • Payback period • 25-year CO₂ savings FEATURES - Apple Maps integration for precise location selection - 50+ countries supported with local electricity prices - Advanced options: roof direction, shading, panel quality, battery storage - 25-year projection chart - Comparison mode: compare different system sizes - Regional solar data - PDF report generation - Price quote creator - Share results with clients Built by the team behind solarcalc.net - your free online solar calculator. Visit us at solarcalc.net for more solar tools and resources.
Screenshots
Verdict
The clearest difference is update cadence: SolarCalc ROI at every 2 weeks against Visitor Book App's monthly. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Visitor Book App ships an update monthly, SolarCalc ROI every 2 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Visitor Book App | SolarCalc ROI |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 56 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Frenzin Softwares Private Limited | Muhammed Celik |
In-app purchases
Visitor Book App
No in-app purchases
SolarCalc ROI
No in-app purchases
Questions
Is Visitor Book App free?
Is SolarCalc ROI free?
Do Visitor Book App or SolarCalc ROI have ads?
Which is updated more often, Visitor Book App or SolarCalc ROI?
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