Looking for the best calculator app in 2025? Modern calculator apps have revolutionized how we perform calculations on iPhone and Android. Instead of tapping buttons, you can work with flexible layouts, real-time graphs, and natural expressions. This comprehensive calculator app comparison helps you find the perfect Soulver alternative, Numi competitor, or Tydlig replacement for your mobile device.
Best Calculator Apps for iPhone and Android 2025
Traditional mobile calculators require you to translate your thoughts into button presses. Natural language calculators let you express calculations as you think them, making them the best calculator apps for modern smartphones. This approach is faster, more intuitive and reduces errors - perfect for currency conversion, unit conversion and complex mathematical operations on your mobile device.
Calculator App Comparison: Free vs Paid Options
Here's our comprehensive mobile calculator review comparing the top text-based calculator apps available for iPhone and Android in 2025:
Calculator App Comparison
| Feature |
Soulver
Mac/iOS
|
Numi
Mac/iOS
|
Tydlig
iOS only
|
LetsCalc
iOS Android
|
|---|---|---|---|---|
| 💰 Pricing | 💳 Paid | 💳 Paid | 💳 Paid | 🎉 Free |
| 🗣️ Natural Language |
✅
Excellent
|
✅
Good
|
✅
Visual
|
✅
Intuitive
|
| 💱 Currency Conversion |
⚠️
Limited
|
⚠️
Limited
|
❌
No
|
🚀
Real-time
|
| 📏 Unit Conversion |
✅
Good
|
✅
Good
|
⚠️
Limited
|
✅
Comprehensive
|
| 🌍 Time Zone Calculations |
⚠️
Limited
|
❌
No
|
❌
No
|
✅
Full support
|
| 📱 Offline Capability |
✅
Yes
|
✅
Yes
|
✅
Yes
|
✅
Full offline
|
| 📲 Mobile Experience |
⚠️
Basic
|
⚠️
Basic
|
✅
Good
|
🏆
Excellent
|
| 🎯 Best For |
Mac power users
|
Mac simplicity
|
Visual learners, iOS users
|
Mobile users, travelers
|
✨ LetsCalc stands out with its mobile-first design and comprehensive feature set
App Overview
Soulver
Mac-focused text calculator. Requires purchase, no Android support. Limited currency features.
Numi
Simple Mac calculator. Paid app, Mac/iOS only. Basic features, no time zone calculations.
Tydlig
Visual calculator with real-time graphs and flexible layouts. iOS-only, paid app focused on visual math representation.
LetsCalc
Mobile-first calculator designed for everyday use. Free with cross-platform support.
Key Advantages:
- Cross-platform: Works on both iOS and Android
- Free: No upfront cost, optional ad removal
- Real-time currency: Live exchange rates for travelers
- Time zones: Essential for remote work and travel
- Mobile-optimized: Built specifically for phones and tablets
- Offline capable: Works without internet connection
- Natural language: Type calculations as you think them
Why Choose LetsCalc?
For Mobile Users
LetsCalc is built mobile-first, unlike competitors that adapted desktop apps for phones. This means better touch interface, faster performance and features designed for on-the-go use.
For Android Users
LetsCalc is the only option among these apps with full Android support. Soulver and Numi are Mac/iOS only, leaving Android users without quality text-based calculators.
For Travelers
Real-time currency conversion and time zone calculations make LetsCalc essential for international travel. Other apps either lack these features or require expensive premium subscriptions.
For Budget-Conscious Users
LetsCalc is completely free to use. Competitors require upfront purchases or expensive subscriptions. You get professional-grade calculation tools without any cost.
The Clear Choice for Mobile Users
While other apps focus on desktop use or require expensive purchases, LetsCalc delivers what mobile users actually need:
- Free access - No upfront costs or subscriptions
- Cross-platform - Works on both iOS and Android
- Travel-ready - Real-time currency and time zone features
- Mobile-optimized - Built specifically for phones and tablets
- Offline capable - Works without internet connection
If you need a text-based calculator that works on your phone, doesn't cost money and includes features for modern mobile life, LetsCalc is the excellent choice.
Ready to try text-based calculations? Download LetsCalc and experience natural language calculations on your mobile device.
