10 Best Calculator HD++ Alternatives: Apps Like Calculator HD++ for iPhone (2026)

Whether you want more options like Calculator HD++ or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

Top Alternatives to Calculator HD++

Calculator⁻ by UniCom Technology

Best hand calculator

Editor's Choice

🔧 Utilities

4.4😞(3.6K ratings)

FreeAds

A straightforward calculator app designed for simplicity, offering basic arithmetic operations and percentage calculations. It allows users to record and recall past results, customize colors, and enable touch sounds for a personalized experience.

What We Love

👍 Easy to use
🚀 Efficient calculations
💡 Retro design
👍 Simple and straightforward

Room to Improve

🐛 Decimal point issues
🐛 Incorrect calculations
🐛 Broken buttons
🔍 Confusing button layout

DayCalc - Note Calculator by 良峰侯

Calculator & Unit Converter

Strong Contender

🔧 Utilities

4.7😊(126 ratings)

FreeAdsIn-App Purchases

This app combines a powerful calculator with a comprehensive unit converter. It offers standard, scientific, and fraction calculations, along with over 600 units across 20 categories. Users can customize units, add notes to calculations, and enjoy a visually appealing interface with multiple themes.

What We Love

👍 Easy to use and convenient
💯 All-in-one calculator with multiple functions
✨ Customizable themes and backgrounds
🧮 Supports fraction calculations
📈 History and memory functions available
🔊 Optional sound effects for typing
🔄 Back button for correcting mistakes
💡 Unit conversion features
✅ Ad-free option available
👌 Simple and effective design
👨‍🏫 Useful for homework and daily tasks
🌟 Makes math fun
🚀 Fast and responsive
🖥️ Good for iPad and other devices
💡 Clear display of calculations
👍 Large buttons and font size
🔄 History is saved and retrievable
💡 Useful for diabetes calculations

Room to Improve

⚠️ Ads can be intrusive
🐛 Some users experience update issues
❌ Weight conversions not always available
🔊 Unwanted sound effects
❓ Ad-free cost unclear for cross-platform
📉 Battery consumption concerns
🚫 Data collection concerns
🪲 Glitches and bugs reported
⏳ Slow startup times reported
🔄 Some features not working after updates
❓ Currency conversion can be confusing
🚫 Some features not available on Apple Watch
❌ Paid version still shows ads briefly
🐛 Specific calculation errors reported (e.g., percentage)
🐛 App crashes reported
🚫 Issues with installing after removal
🐛 Issues with specific versions/updates
🐛 Display issues (e.g., underlines)

Calculator%. by UniCom Technology

Simple, big screen and buttons

Worth Considering

🔧 Utilities

4.4😊(4.2K ratings)

FreeAds

This app offers a straightforward calculator with a large display and oversized buttons for easy operation. It's designed for everyday tasks, enabling users to perform fundamental arithmetic like addition, subtraction, multiplication, and division with clarity and convenience.