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Best Free Adding Machine Apps

191+ iOS apps curated and reviewed

3.9 avg rating
19 free apps
Updated September 2026

From beginner-friendly picks to power-user tools, our free adding machine list covers 191+ iPhone apps updated through September 2026. Compare ratings, prices, and screenshots in one place.

Compare top Free Adding Machine Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1CalculatorCalculatorFree3.0★ (8.9K)NoNoSep 2026
2Basic Calculator+Basic Calculator+Free4.9★ (243K)YesNoSep 2026
3Adding Machine 10Key Univ LiteAdding Machine 10Key Univ LiteFree4.3★ (192)NoNoAug 2026
4Adding Tape II adding machine with virtual tapeAdding Tape II adding machine with virtual tapeFree2.4★ (39)NoYesAug 2026
5Machine ListingMachine ListingFree—NoNoJul 2026
6Smart Adding MachineSmart Adding Machine$3.99—NoNoMay 2026
7Umaboy TechUmaboy TechFree—NoNoMay 2026
8MaknanaMaknanaFree—NoNoMay 2026

Top Picks for Free Adding Machine

Calculator#1

Calculator by Apple

Editor's Choice
🔧 Utilities
3.0😞(8.9K ratings)
Free
Calculator screenshot 1
Calculator screenshot 2
Calculator screenshot 3
Calculator screenshot 4

This app offers both basic and scientific calculators for quick solutions to mathematical expressions. It also features a "Math Notes" function that allows users to type or write out equations and see them solved inline, with support for variables and graphing.

What We Love

  • 👍 Basic calculator functionality
  • 💡 Math notes feature
  • 🚀 Clean, simple design

Room to Improve

  • 🐛 Calculation errors
  • 🔍 Lack of history/memory functions
  • 🤔 Inconvenient to access advanced features
  • 🤯 Frustrating to fix mistakes
  • 🙄 Removed useful features in recent updates
Basic Calculator+#2

Basic Calculator+ by Best Free Apps

Basic Four Function Calculator
Strong Contender
🔧 Utilities
4.9😊(243K ratings)
FreeAds
Basic Calculator+ screenshot 1
Basic Calculator+ screenshot 2

Perform essential arithmetic operations with a straightforward calculator app. Its large buttons and clear display ensure ease of use, supporting both portrait and landscape orientations.

What We Love

  • 👍 Easy to use
  • 👍 Large, clear buttons
  • 👍 Straightforward, basic functionality
  • 👍 No ads or in-app purchases
  • 👍 Works well on iPad

Room to Improve

  • 🐛 Inconsistent click volume
  • 🐛 Ads can be intrusive or disruptive
  • 🐛 Missing backspace/delete function
Adding Machine 10Key Univ Lite#3

Adding Machine 10Key Univ Lite by Richard Silverman

True 10Key Adding Machine
Worth Considering
💰 Finance
4.3😐(192 ratings)
Free
Adding Machine 10Key Univ Lite screenshot 1
Adding Machine 10Key Univ Lite screenshot 2
Adding Machine 10Key Univ Lite screenshot 3
Adding Machine 10Key Univ Lite screenshot 4
Adding Machine 10Key Univ Lite screenshot 5
Adding Machine 10Key Univ Lite screenshot 6

This app emulates a traditional 10-key adding machine for precise calculations. It offers features like reversed operator entry, percentage calculation, and the ability to edit and save paper tape files. The iPad version includes a full-size keypad with audio feedback for enhanced accuracy.

What We Love

  • 👍 Easy to use
  • 👍 Works like a real adding machine
  • 👍 Tape feature is useful
  • 👍 Large, clear numbers
  • 👍 Good for bookkeeping
  • 👍 Free version is functional
  • 👍 Visual print out for totals
  • 👍 Big, easy-to-use keys
  • 👍 Good for small businesses
  • 👍 Can edit tape entries
  • 👍 Free and functional

Room to Improve

  • 💸 Paid version is expensive
  • 📉 Ads take up screen space on iPhone
  • 🤏 Keys are too small on lite version
  • 🗄️ Lite version has limited lines
  • 💡 Trailing zeros not displayed
  • 🤔 Clearing tape requires multiple clicks
  • 📝 Tape is too short
  • 😵 App crashes and loses data
  • 📱 Does not support split screen
  • 🚫 Begs for reviews constantly
  • ⚠️ Basic features restricted in free version
  • 💰 Upgrade is expensive

More Free Adding Machine apps to explore

FAQ about Free Adding Machine

What are the best free adding machine apps for iPhone?
Calculator tops our free adding machine apps ranking as of September 2026, with a 3.0-star average from 8.9K App Store ratings, and it's free to download.
Calculator has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 191+ free adding machine apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app provides both basic and scientific calculators for solving mathematical expressions. It also includes a "Math Notes" feature that allows you to type or write out equations and have them solved inline. You can create and use variables, plot equations on graphs, and perform unit and currency conversions.
Yes, the app supports graphing equations. You can type or write an equation and then tap to graph it within Math Notes. You can zoom, pan, resize the graph, and even add multiple equations to the same graph to see their relationships.