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😊(128 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 PanecalST by Noriyasu Kutsuzawa

Allow you to modify formulas.

Worth Considering

🔧 Utilities

4.8(98 ratings)

FreeAds

This calculator allows you to view and edit complex formulas with ease. It prevents errors by letting you check entries as you type and reuse past calculations by modifying values. Navigate and edit expressions quickly with a cursor and intuitive controls.