Easy Calculator vs ePdfUB
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Easy Calculator
This app offers a smart and efficient computing experience with automatic history saving and a comprehensive unit converter. It provides customizable themes, flexible display settings, and optional haptic feedback for enhanced interaction.
- Smart history tracking
- Unit converter
- Sound and voice feedback
- Customizable themes
- Flexible display settings
- Haptic feedback
Read full descriptionHide full description
Your Smart Computing Companion! Whether you're a casual calculator user or a professional who frequently handles unit conversions, this app delivers a smart, efficient, and personalized experience. Key Features: Smart History: Automatically saves every calculation expression and result. Easily review, search, and organize past calculations. Unit Converter: Seamlessly convert between common units—length, area, volume, weight, time, and temperature. Perfect for study, work, and daily life. Sound & Voice Feedback: Choose from multiple keypress sound effects, enable/disable silent mode, and enjoy clear voice output—ideal for visually impaired users and seniors. Customizable Themes: Switch between Light, Dark, Green, Pink, and Blue themes to suit your mood and environment. Flexible Display Settings: Adjust font size and decimal precision to fit any usage scenario. Haptic Feedback: Optional vibration feedback enhances interaction and confirms your inputs. Ad-Free Experience: Clean, distraction-free interface for focused, stress-free calculations. Download now and experience the future of smart computing!
ePdfUB
Read full descriptionHide full description
Say goodbye to rigid, zoom-and-scroll PDFs. All processing happens 100% locally on your device—ensuring absolute privacy and offline capability. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: Easy Calculator at Free against ePdfUB's $3.99. Easy Calculator also leads on update cadence (weekly vs every 2 months) and iOS requirement (15.6 vs 26.2). On 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
Easy Calculator is free to download; ePdfUB costs $3.99 up front. Easy Calculator sells 1 one-off in-app purchase and ePdfUB sells 2 in-app purchases, starting at $0.99 per year. Whichever you choose, the download price is not the number that matters.
Easy Calculator ships an update weekly, ePdfUB every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | Easy Calculator | ePdfUB |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 4.0 (12 ratings) — better | — |
| Positive reviews | 87.0% of reviews | — |
| Number of ratings | 12 — better | — |
| Update frequency | Weekly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 26.2 |
| Further details — not scored | ||
| Size | 23 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | 伟鹏 李 | Chia Hsien Wei |
In-app purchases
Easy Calculator
- Lifetime Premium Membership$2.99
ePdfUB
- Yearly$0.991 Year
- lifetime$2.99
