Comparison

Adding Machine 10Key iPhone vs Bill Tracker Pro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Adding Machine 10Key iPhone

This app emulates a traditional 10-key adding machine, offering reversed operator entry and percentage calculation. Users can edit and save paper tapes, export them to various services, and customize keypad sounds. It's designed for accurate and efficient numerical input.

Highlights
  • True 10-key adding machine emulation
  • Reversed operator entry
  • Percentage calculation
  • Editable paper tape history
  • Save and retrieve paper tape files
  • Export paper tape to iBooks, Dropbox, or printing utilities
Currently charting
Read full description

'Adding Machine 10Key for iPhone’ behaves like a true '10 Key' or 'adding machine' like those made by Monroe, Casio, Sharp and others. Press asterisk (*) for a total, operator entry is reversed, and calculate percentages by multiplying and adding to a stream of numbers. SEE THE 1ST FAQ BELOW. The total (*) key can be on either the left or right side (Sharp or Canon style) and the keypad is expandable to show more or less paper tape history. Also. Review & edit numbers, add or delete lines. Save & retrieve paper tape files. Export paper tape files to iBooks©, Dropbox©, or your favorite printing utility (see the FAQs). ==== Recent Press ===== Has been featured in iTunes "What's Hot" in the Finance Category. Strategic Finance (Tools of the Trade): "If you're looking for a professional desk calculator that can give you full 10-key accounting functions with a tape you can name and save, edit, e-mail, or print, check out Interlocken's 10 Key for iPad." ================= Specifications: ================= . Behaves the same as a '10 Key' adding machine. . Export a PDF file to iBooks©, DropBox©, Email, or your favorite printing utility. . TypeTone - a major innovation to aid accurate key entry using audio feedback (iPad version only). . Full size (1:1) keyboard (iPad version only). . Select from a menu of keypad sounds. . 400 lines of paper tape history (full version). . 3 display formats: fixed, fix+, float . Save paper tapes to disk for later use. . Correct numbers, add comments, add/delete lines . Two keypads offer the 'total' key on the left or right (Sharp or Canon style) . Comprehensive set of help screens. ================ FAQ's Q1. What is the difference between 'Adding Machine 10Key Univ', and 'Accountant Calc' in the App. Store.? A1. Both calculators are single-column adding machines or calculators with full-size (1:1) keypads and are optimized for the iPad User Interface. '10 Key' behaves the same as a 10 Key Adding Machine with reversed operator entry while ‘Accountant Calc’ supports free chaining of +, -, x, /, %, √, 1/x. It is easier to use if you are not familiar with how a '10-key' works. Q2. Can I touch-type? A2. Only the iPad version includes ‘TypeTone’, a key will guide your finger back to the center of a key with an audio tone. Q3. How can I edit an incorrect number or add & delete lines from the paper tape? A3. Touch any line of the paper tape for edit mode. Touch the side controls: Add Line, Delete Line. You can also edit numbers, split Add/Sub or Mul/Div groups. Press Done to return to Calculator mode. Q4. Tell me about Email, Printing, and Exporting a Paper Tape. A4. Email includes a pdf attachment. Print requires an AirPrint capable printer. Open-In will cause a menu of 3rd party Apps to appear. Once exported, print directly to a network reachable printer (even if it is NOT AirPrint capable). ============================ TERMS AND CONDITIONS Your use of this application is governed by Interlocken Technology's Terms of Use (http://s354819480.onlinehome.us/InterlockenPrivacyPolicy/Interlocken%20Technology%20Privacy%20Policy.pdf) and Privacy Policy (http://s354819480.onlinehome.us/InterlockenPrivacyPolicy/InterlockenTechnologyTermsOfUse.pdf)

About

Bill Tracker Pro

Manage your bills, income, and spending with this comprehensive finance tracker. Connect your bank accounts for automatic transaction syncing, set bill reminders, and create custom budgets to gain control of your cash flow. Visualize your financial health with insightful charts and reports.

Highlights
  • Automatic bank transaction syncing
  • Customizable budget creation
  • Bill payment reminders and notifications
  • Subscription discovery
  • Partner finance sharing
  • Visual spending insights and reports
  • Secure data protection
Features
Currently charting
Read full description

Bill Tracker Pro is the #1 app for tracking bills, income, and spending. Connect your bank, create a budget, track your cash flow, and take control of your finances. New in Bill Tracker Pro: Connect your Apple Card and automatically bring your transactions, balances, and spending activity into the app from Apple Wallet. Bank Sync with Plaid – Connect your accounts to sync transactions automatically. Know What’s Safe to Spend – See your real-time spending power after upcoming bills. Never Miss a Bill – Set reminders, view your upcoming bills at a glance, and stay organized with widgets. Find Hidden Subscriptions – Uncover forgotten recurring charges by linking your bank or card. Budget Your Way – Create flexible budgets that work with your lifestyle. Budget with your partner - Invite your partner to join you and share your finances together. Manual or Auto—You Choose – Log expenses yourself or let the app track them for you. Visual Insights – Analyze your finances with charts, reports, and summaries. Privacy First – Protect your data with Face ID, Touch ID, and encrypted syncing. Whether you want to pay bills on time, build savings, or reduce spending — Bill Tracker Pro makes it simple. Other Features: Create recurring bills with flexible schedules (e.g. every 3 weeks, quarterly, custom days). Get rich push notifications with due date charts and the ability to mark bills as paid. Calendar view with payment statuses and category grouping. Analyze your spending with daily, weekly, monthly, and quarterly charts. Track percentage changes in spending over time. Pie charts that highlight top spending categories. Manage your accounts, view current balances, and forecast future balances. See your full financial picture with cash flow and net balance indicators. Export bills and income transactions to CSV. Log partial or full bill payments, with full payment history. Auto Pay Bill feature that automatically marks recurring bills as paid. Customize notification time, sounds, currency, and authentication preferences. Secure access with passcode, Face ID, or Touch ID. Simple, intuitive design built for clarity and speed. SUBSCRIPTION AND PRICING TERMS Bill Tracker Pro offers auto-renewing subscriptions for premium access. Payment is charged to your iTunes Account at confirmation. Your account will be charged for renewal within 24 hours of the current period ending. Prices may vary by region. You can cancel anytime through your iTunes settings. Cancel at least 24 hours before the renewal to avoid being charged. Terms of Use: https://billtrackerpro.com/terms Privacy Policy: https://billtrackerpro.com/privacy Support: support@billtrackerpro.com

Screenshots

Adding Machine 10Key iPhone4 screens
Bill Tracker Pro4 screens

Verdict

The call

Adding Machine 10Key iPhone and Bill Tracker Pro both sit at 4.6 stars, but that hides the real split: 95% of Adding Machine 10Key iPhone's written reviews are positive against 44% of Bill Tracker Pro's. Adding Machine 10Key iPhone also leads on in-app purchases (none vs 19) and iOS requirement (12.4 vs 16.0). Bill Tracker Pro's advantage is price (Free vs $2.99) and update cadence (every 2 days vs every 5 weeks). On rating, ads, chart position and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Bill Tracker Pro is free to download; Adding Machine 10Key iPhone costs $2.99 up front. Bill Tracker Pro sells 15 in-app purchases, starting at $5.99 per month. Adding Machine 10Key iPhone asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Adding Machine 10Key iPhone against 4.6 for Bill Tracker Pro. That said, the two scores are not equally well evidenced: Bill Tracker Pro has 5.1K ratings behind it against 131, so its average is the more settled of the two. Written reviews are what separate them: 95% of Adding Machine 10Key iPhone's written reviews are positive against 44% of Bill Tracker Pro's.

UpkeepUpdate frequency

Adding Machine 10Key iPhone ships an update every 5 weeks, Bill Tracker Pro every 2 days. The most recent releases landed on October 14, 2026 and October 15, 2026 respectively.

Scorecard7 real differences · 4 level
Adding Machine 10Key iPhone versus Bill Tracker Pro: the parameters behind the verdict, then further details
ParameterAdding Machine 10Key iPhoneBill Tracker Pro
Price$2.99Free — better
Rating4.6 (131 ratings)4.6 (5.1K ratings)
Positive reviews95.2% of reviews — better43.5% of reviews
Number of ratings1315.1K — better
Update frequencyEvery 5 weeksEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
Best chart rank#138#69 — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.4 — better16.0
Further details — not scored
Size10 MB225 MB
Age rating4+4+
DeveloperRichard SilvermanBill Tracker Pro, Inc.

Customer experience

Adding Machine 10Key iPhone

All ratings131 ratings
Positive92.4%
Neutral3.1%
Negative4.6%
Written reviews62 reviews
Positive95.2%
Neutral0.0%
Negative4.8%

Bill Tracker Pro

All ratings5,052 ratings
Positive89.8%
Neutral2.9%
Negative7.3%
Written reviews386 reviews
Positive43.5%
Neutral13.7%
Negative42.7%

User reviews

Adding Machine 10Key iPhone

From 131 App Store ratings

What we love

  • 👍 Works like a real adding machine
  • 👍 Tape feature is excellent
  • 👍 Easy to use and user-friendly
  • 👍 Good for complex calculations
  • 👍 Allows editing of numbers

Room to improve

  • 🐛 Watermarks premium exports
  • 🐛 Haphazardly laid out controls
  • 🐛 Touchy sound toggle in free version
  • 🐛 Keypad glitch on re-opening
  • 🐛 Nagging review requests

Bill Tracker Pro

From 5.1K App Store ratings

What we love

  • ⭐ Amazing app
  • 🚀 Helpful and easy to use
  • 👍 Great budgeting and tracking features
  • 🔒 Secure and private
  • 💯 Excellent customer support

Room to improve

  • 🐛 Bugs and glitches
  • ⚠️ Unreliable notifications
  • 💰 Subscription-based model
  • 🔄 Changing bill due dates
  • 🤯 Deleted/lost user data

Bugs and requests

Adding Machine 10Key iPhone

Reported bugs

9 issues
  • Watermarks premium PDF exports
  • Haphazardly laid out controls
  • Touchy sound toggle in free version
  • Keypad glitch on re-opening
  • Nagging review requests (Don't ask again button not working)
Show 4 more
  • Incessant review requests (Don't Ask Again option not working)
  • Clearing the tape is a guessing exercise (I button behavior inconsistent)
  • Custom keypad feature removed from iPhone version
  • Inconsistent sound and clear button behavior

Requested features

10 requests
  • Eliminate tape for bigger total screen
  • Add square root feature
  • Bring back custom keypad feature on iPhone version
  • Allow more than 350 lines
  • Allow more notations on tape
Show 5 more
  • Ability to custom label groups
  • Fix period button centering
  • Consider changing app icon
  • Preferences for number format (input and output commas)
  • More control over number formats

Bill Tracker Pro

Reported bugs

5 issues
  • App crashes on launch
  • Autopay feature not working
  • Duplicate bills being created
  • Incorrect account balance updates
  • Inability to edit/delete recurring bills

Requested features

5 requests
  • Ability to add variable/unknown bill amounts
  • Custom date ranges for bill tracking
  • Family/shared account support
  • Improved reporting and analytics
  • Backup and restore functionality

In-app purchases

None

Adding Machine 10Key iPhone

No in-app purchases

15 purchases

Bill Tracker Pro

Subscriptions14
  • Bill Tracker Pro Monthly7 Days trial$5.991 Month
  • Bill Tracker Pro Monthly7 Days trial$6.991 Month
  • Bill Tracker Pro Monthly7 Days trial$9.991 Month
Show 11 more
  • Bill Tracker Pro Monthly7 Days trial$11.991 Month
  • Bill Tracker Pro Annual7 Days trial2 variants$17.991 Year
  • Bill Tracker Pro Annual7 Days trial$19.991 Year
  • Bill Tracker Pro Annual7 Days trial2 variants$24.991 Year
  • Bill Tracker Pro Annual1 Month trial$24.991 Year
  • Bill Tracker Pro Annual7 Days trial2 variants$29.991 Year
  • Bill Tracker Pro Annual1 Month trial$29.991 Year
  • Bill Tracker Pro Annual7 Days trial2 variants$34.991 Year
  • Bill Tracker Pro Annual1 Month trial$34.991 Year
  • Bill Tracker Pro Annual7 Days trial$39.991 Year
  • Bill Tracker Pro Annual7 Days trial$49.991 Year
One-time1
  • Unlimited Bill Alerts$9.99

Questions

Is Adding Machine 10Key iPhone free?
Adding Machine 10Key iPhone costs $2.99, with no in-app purchases.
Is Bill Tracker Pro free?
Bill Tracker Pro is free to download, with in-app purchases available.
Which has better reviews, Adding Machine 10Key iPhone or Bill Tracker Pro?
Adding Machine 10Key iPhone and Bill Tracker Pro are both rated 4.6 out of 5 on the App Store, from 131 and 5.1K ratings respectively.
Do Adding Machine 10Key iPhone or Bill Tracker Pro have ads?
Neither Adding Machine 10Key iPhone nor Bill Tracker Pro shows ads.
Which is updated more often, Adding Machine 10Key iPhone or Bill Tracker Pro?
Adding Machine 10Key iPhone ships an update every 5 weeks, and Bill Tracker Pro every 2 days. Most recently, Adding Machine 10Key iPhone was updated on October 14, 2026 and Bill Tracker Pro on October 15, 2026.
Which is more popular, Adding Machine 10Key iPhone or Bill Tracker Pro?
Adding Machine 10Key iPhone currently peaks at #138 in the App Store charts, and Bill Tracker Pro at #69. Chart position reflects recent download velocity rather than total install base.

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