PDF Editor vs Søby Predictive Maintenance
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Editor
This app offers robust PDF editing and compression tools, allowing you to reduce file sizes by up to 90% while preserving quality. It also provides features for annotating, filling forms, signing documents, and managing PDFs.
- Powerful PDF compression up to 90%
- Edit text, add annotations, and shapes
- Fill forms and add digital signatures
- Highlight, underline, and strikethrough text
- Split, merge, and convert documents
- Scan documents using your camera
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Edit the actual text inside your PDFs—change words, fonts, sizes, and colors, swap out images, and fix typos right on your iPhone or iPad. PDF Editor brings desktop-class editing to your pocket, then lets you annotate, sign, fill forms, and share in seconds. EDIT TEXT & IMAGES DIRECTLY • Tap any paragraph to rewrite, restyle, or delete text • Change fonts, sizes, colors, and alignment • Add, move, resize, or replace images • Fix typos and update documents without a computer ANNOTATE & MARK UP • Highlight, underline, and strikethrough • Add comments, sticky notes, shapes, and arrows • Draw freehand with your finger or Apple Pencil • Insert stamps and custom watermarks SIGN & FILL FORMS • Sign with your finger or a saved signature • Fill out interactive and flat forms • Add dates, checkmarks, and text fields ORGANIZE & CONVERT • Merge, split, reorder, rotate, and delete pages • Scan paper documents with your camera • Convert photos and images to PDF • Extract or duplicate pages SHRINK FILE SIZES • Compress large PDFs to make them easy to email and share • Pick the compression level that fits your needs Whether you're editing a contract, marking up research, or fixing a typo before a deadline, PDF Editor gives you everything you need to work with PDFs—right on your iPhone and iPad. Terms of service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://site.innovaapps.ai/policies/translatorprivacypolicy
Søby Predictive Maintenance
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This application is developed by Aarhus University in collaboration with Søby. The purpose of the app is to collect, visualize, and manage power measurement data from silo motors.
Screenshots
Verdict
The clearest difference is in-app purchases: Søby Predictive Maintenance at none against PDF Editor's 3. PDF Editor's advantage is update cadence (every 2 months vs every 6 months). On price, 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
Both are free to download. PDF Editor sells 3 in-app purchases, starting at $3.99 per 7 days. Søby Predictive Maintenance asks for nothing beyond the download.
PDF Editor ships an update every 2 months, Søby Predictive Maintenance every 6 months. The most recent releases landed on October 5, 2026 and October 1, 2026 respectively.
| Parameter | PDF Editor | Søby Predictive Maintenance |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (67 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 67 — better | — |
| Update frequency | Every 2 months — better | Every 6 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 74 MB | 67 MB |
| Age rating | 4+ | 4+ |
| Developer | Alex Gameli Heyman | Aarhus Universitet |
In-app purchases
PDF Editor
- Weekly PDF Editor3 Days trial$3.997 Days
- Monthly PDF Editor$9.991 Month
- PDF one time Edit$2.99
Søby Predictive Maintenance
No in-app purchases
Questions
Is PDF Editor free?
Is Søby Predictive Maintenance free?
Do PDF Editor or Søby Predictive Maintenance have ads?
Which is updated more often, PDF Editor or Søby Predictive Maintenance?
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