ESTAR PRO vs Scan2PDF
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
ESTAR PRO
Read full descriptionHide full description
ESTAR PRO is a mobile application developed by for installers of distributed PV power plants. It provides an EASY-TO-USE procedure for monitoring accounts and a visual physical layout guide for the installation of microinverters, which helps installers configure monitoring accounts rapidly, and provides installers power generation data on both plant-level & module-level as well as detailed alarm information about the power plant for commissioning & diagnostics.
Scan2PDF
Read full descriptionHide full description
Scan, edit, sign, and manage all your PDF documents for free! Scan2PDF is your all-in-one PDF toolkit for iPhone and iPad. Scan documents, edit PDFs, add signatures, merge files, and organize your documents in just a few taps. 100% FREE. NO ADS. NO SUBSCRIPTIONS. Unlike many PDF scanner apps, Scan2PDF gives you access to every feature completely free of charge. SCAN DOCUMENTS ⢠Scan documents using your camera. ⢠Scan multiple pages into a single PDF. ⢠Import PDFs, photos, and images. ⢠Convert images into PDF documents. EDIT YOUR PDF FILES ⢠Rearrange pages with drag and drop. ⢠Rotate PDF pages. ⢠Delete unwanted pages. ⢠Extract pages to create new PDF files. ⢠Add pages to existing documents. ⢠Undo and redo your changes. SIGN PDF DOCUMENTS ⢠Draw your signature using your finger or Apple Pencil. ⢠Add signatures directly to PDF documents. ⢠Move and resize signatures with ease. ⢠Save signatures for future use. MERGE & COMPRESS PDF FILES ⢠Combine multiple PDFs into one document. ⢠Reduce PDF file sizes. ⢠Choose between three compression levels. ⢠Add custom text watermarks to your PDFs. ORGANIZE YOUR DOCUMENTS ⢠Create folders to organize your PDF files. ⢠Quickly find documents using search. ⢠Rename, duplicate, move, and share your files. ⢠Restore deleted documents from the trash. YOUR DOCUMENTS STAY PRIVATE Your privacy is our priority. ⢠No account required. ⢠No documents uploaded to servers. ⢠No mandatory cloud storage. ⢠No subscriptions. ⢠No advertisements. ⢠All PDF processing happens directly on your device. Your documents belong to you and remain under your control. DESIGNED FOR IPHONE & IPAD Enjoy a clean, fast, and intuitive interface optimized for your Apple devices. Whether you need to scan a receipt, sign a contract, merge documents, or edit a PDF, Scan2PDF makes everyday document management simple. Download Scan2PDF today and enjoy all your PDF tools for free, without compromising your privacy.
Screenshots
Verdict
The clearest difference is update cadence: ESTAR PRO at every 6 weeks against Scan2PDF's every 5 months. ESTAR PRO also leads on iOS requirement (14.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ESTAR PRO ships an update every 6 weeks, Scan2PDF every 5 months. The most recent releases landed on October 27, 2026 and November 5, 2026 respectively.
| Parameter | ESTAR PRO | Scan2PDF |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks ā better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 14.0 ā better | 17.6 |
| Further details ā not scored | ||
| Size | 51 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | JUAN WANG | Alexis Louis |
In-app purchases
ESTAR PRO
No in-app purchases
Scan2PDF
No in-app purchases









