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Best Budget Calculator Gas Apps

219+ iOS apps curated and reviewed

4.6 avg rating
18 free apps
Updated July 2026

If you already know Calculator for iPad₊, this is the deeper bench. 219+ budget calculator gas apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of July 2026.

Top Picks for Budget Calculator Gas

Calculator for iPad₊#1

Calculator for iPad₊ by Impala Studios B.V.

Basic, Scientific, Plus Calc
Editor's Choice
🔧 Utilities
4.5😞(126K ratings)
FreeAdsIn-App Purchases
Calculator for iPad₊ screenshot 1
Calculator for iPad₊ screenshot 2
Calculator for iPad₊ screenshot 3
Calculator for iPad₊ screenshot 4
Calculator for iPad₊ screenshot 5

This app offers both basic and advanced scientific calculations with an intuitive interface designed for tablets and phones. It includes features like currency conversion, calculation history, and the ability to share results. An optional premium membership removes ads and provides enhanced support.

What We Love

  • 🚀 Helpful for math calculations
  • 👍 Variety of functions beyond basic calculator
  • 👍 Useful for students and teachers

Room to Improve

  • 🙄 Excessive ads and pop-ups
  • 💰 Expensive subscription to remove ads
  • 🐛 Occasional calculation errors
Digits Tape Calculator#2

Digits Tape Calculator by Shift

The calculator for humans
Strong Contender
🔧 Utilities
4.8😊(1.1K ratings)
$1.99In-App Purchases
Digits Tape Calculator screenshot 1
Digits Tape Calculator screenshot 2
Digits Tape Calculator screenshot 3
Digits Tape Calculator screenshot 4
Digits Tape Calculator screenshot 5
Digits Tape Calculator screenshot 6

This app offers a calculator with an editable, line-by-line tape history, combining spreadsheet-like functionality with calculator simplicity. Easily correct mistakes, add comments, and share or print your calculations.

What We Love

  • 🚀 Best tape calculator
  • 👍 Intuitive and user-friendly interface
  • 💡 Editable and commentable saved tapes
  • 🚀 Resizes well on iPad

Room to Improve

  • 🐛 Bug with iOS 26 where number pad doesn't return after adding comments
  • 🐛 Slow to load and unresponsive on some devices
  • 👎 Lack of iCloud sync between devices
Calculator₊#3

Calculator₊ by Impala Studios B.V.

Basic, Scientific, Plus Calc
Worth Considering
🔧 Utilities
4.7😞(1.7M ratings)
FreeAdsIn-App Purchases
Calculator₊ screenshot 1
Calculator₊ screenshot 2
Calculator₊ screenshot 3
Calculator₊ screenshot 4
Calculator₊ screenshot 5
Calculator₊ screenshot 6

This app offers a comprehensive suite of calculation tools, including basic, scientific, and unit conversion functions. It features an AI-powered math solver that can solve problems from photos and a dedicated math notes section for jotting down equations and diagrams. Accessibility options like dynamic text size and VoiceOver support are also included.

What We Love

  • 💻 Useful calculator features
  • 🎨 Customizable backgrounds and themes
  • 📚 Helpful history tracking

Room to Improve

  • 📺 Intrusive full-screen ads
  • 💰 Expensive subscription model
  • 🔍 Ads blocking calculator functionality

More Budget Calculator Gas apps to explore

4
ClevCalc - Calculator
ClevCalc - Calculator
ClevCalc - Calculator
All-In-One Calculator
Free

This comprehensive calculator app offers a wide range of tools for everyday calculations, from basic arithmetic and scientific functions to unit and currency conversions. It includes specialized calculators for loans, health, fuel costs, GPA, and more, all within a clean and user-friendly interface.

Scientific calculatorUnit converterCurrency converter
📊 Productivity
(12K)
free with in-app purchases
5
Calculator: No Ads / Ad-Free
Calculator: No Ads / Ad-Free
Calculator: No Ads / Ad-Free
Basic, Scientific & Finance
Free

This app offers a private and accessible calculation experience with no advertisements. It includes scientific, financial, and basic calculation functions, along with features like voice feedback and visual charts for loans and investments.

Scientific calculatorFinancial calculator (budgets, loans, mortgages)Audible speech feedback
🔧 Utilities
(4.5K)
free with in-app purchases
6
OneCalc: All-in-one Calculator
OneCalc: All-in-one Calculator
OneCalc: All-in-one Calculator
Calculates everything. Try it.
Free

This app offers a comprehensive suite of over 40 calculators and unit converters for various needs, including finance, health, construction, and everyday math. It features standard, scientific, and specialized calculators for tasks like loan amortization, currency conversion, and material estimation.

Over 40 calculators and unit convertersStandard and scientific calculator functionsFinancial calculators (interest, loan, currency)
📊 Productivity
(4.8K)
free with in-app purchases
7
Southwest Gas
Southwest Gas
Southwest Gas
Manage your account on the go
Free

Easily manage your gas account from anywhere. Track usage, view billing history, and make payments. Start, stop, or transfer service, and set up payment plans for residential and business customers.

Start, stop, or transfer serviceSave card info for quick paymentsView and export usage/billing history
💼 Business
(93K)
free
8
GasBuddy: Find & Pay for Gas
GasBuddy: Find & Pay for Gas
GasBuddy: Find & Pay for Gas
Cheap fuel prices and rewards
Free

Find the cheapest fuel prices in your area and earn rewards for saving money on gas. This app helps you locate stations, compare prices, and redeem points for discounts through various activities like snapping receipts and playing games.

Find cheapest gas pricesReport and view gas pricesEarn rewards points
✈️ Travel
(447K)
free with in-app purchases
9
GraphNCalc83
GraphNCalc83
GraphNCalc83
Graphing calculator
$12.99

This app offers a powerful graphing calculator experience with touch-based input for enhanced interaction. It supports natural textbook notation, advanced math functions, and various plotting capabilities. Users can also utilize its programming features and built-in tools like unit conversion and a periodic table.

Touch-based graphing and editingNatural textbook notation inputAdvanced math and statistical functions
📚 Education
(3.8K)
paid
10
Road Trip MPG Lite
Road Trip MPG Lite
Road Trip MPG Lite
MPG and Mileage Tracking
Free

Easily track your car's mileage, fuel economy, and maintenance expenses. This app offers fast data entry, comprehensive statistics, and international support for various units. It allows unlimited data saving and seamless upgrades to a full version.

Fast fuel, price, and odometer inputSingle-touch fuel entryFuel price/mileage graphing
💰 Finance
(44)
free
11
Roadtrip Gas Price Calculator
Roadtrip Gas Price Calculator
Roadtrip Gas Price Calculator
Split the cost of fuel!
Free

Effortlessly calculate your road trip expenses, including fuel costs based on your car model and current gas prices. Easily split costs with friends, compare routes for savings, and track your carbon emissions for a more eco-conscious journey.

Calculate fuel costsSplit expenses with friendsCompare routes for savings
✈️ Travel
(218)
free with in-app purchases
12
Calculator⁻
Calculator⁻
Calculator⁻
Best hand calculator
Free

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.

Basic arithmetic operationsPercentage calculationsRecord and recall results
🔧 Utilities
(3.4K)
ad-supported
13
Calculator Pro Lite
Calculator Pro Lite
Calculator Pro Lite
Best Calculator
Free

A highly customizable calculator app offering a modern interface and extensive features. Personalize themes, button layouts, and visual elements. Track your calculations with a detailed history and access scientific functions.

Customizable themes and colorsDual-line displayCalculation history
🔧 Utilities
(3K)
ad-supported
14
Big Button Calculator Pro Lite
Big Button Calculator Pro Lite
Big Button Calculator Pro Lite
Easy Basic Calculator
Free

A user-friendly calculator app featuring large buttons and customizable colorful backgrounds. It offers a dual-line display, multi-line input for complex equations, and convenient gesture controls for editing and copying.

Large buttonsDual-line display18 color themes
🔧 Utilities
(13K)
ad-supported
15
QuickMPG - gas mileage calculator
QuickMPG - gas mileage calculator
QuickMPG - gas mileage calculator
by Steven Romej
Free

Easily calculate your vehicle's gas mileage on a single screen. Track your fuel efficiency over time with historical data and quick comparison features. Ideal for anyone needing a straightforward way to monitor MPG.

One-screen calculationHistorical MPG dataQuick comparison of ratings
🔧 Utilities
(10)
free
16
Gas Prices Near Me
Gas Prices Near Me
Gas Prices Near Me
Cheap Gas Nearby
Free

Find the cheapest gas prices in your area with real-time updates. Compare fuel costs for various types and navigate directly to your chosen station. Save money on every fill-up with smart station selection and personalized settings.

Real-time gas price updatesCompare prices by fuel typeNearby station map
✈️ Travel
(80)
free
17
Fuelito - Fuel Cost Calculator
Fuelito - Fuel Cost Calculator
Fuelito - Fuel Cost Calculator
Gas Petrol Trip Cost & Budget
Free

Calculate trip fuel costs, track gas expenses, and manage your fuel budget. Monitor petrol consumption, analyze traffic impact on driving costs, and plan optimized routes to save money.

Trip fuel cost calculationFuel expense trackingFuel budget management
🔧 Utilities
(2)
freemium
18
Simple Fuel Calculator (USA)
Simple Fuel Calculator (USA)
Simple Fuel Calculator (USA)
Calculates fuel usage and cost
Free

This application helps users calculate their fuel consumption and associated costs. It utilizes standard units commonly used in the USA, such as miles, dollars, and U.S. gallons.

Fuel consumption calculationCost calculationUses US standard units (miles, $, gallons)
✈️ Travel
(6)
free
19
Simple Calculator.
Simple Calculator.
Simple Calculator.
Basic Casio-style calculator
Free

A straightforward calculator designed for speed and accuracy, mimicking classic pocket calculators. It offers real-world logic, business-focused calculations like cost, sell, and margin, and a clean interface for effortless use.

Real-world logic, no forced order of operationsRunning total displayCost, sell, margin calculations
🔧 Utilities
(1.4K)
ad-supported
20
Circle K
Circle K
Circle K
One app for easy journeys.
Free

This app helps you find nearby fuel stations, check real-time fuel prices, and access exclusive deals. It also offers features like car wash subscriptions and fuel discounts for easier and more rewarding journeys.

Check real-time fuel pricesFind nearest stations with filtersAccess app-only deals
🛍️ Shopping
(23K)
free with in-app purchases

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