Adding Machine 10Key Universal vs BA Financial Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Adding Machine 10Key Universal
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 review and edit entries on a digital paper tape. Users can save, export, and print their calculation tapes.
- 10-key adding machine emulation
- Reversed operator entry
- Percentage calculation
- Digital paper tape with editing
- Save and export tapes (PDF)
- TypeTone audio feedback (iPad)
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'Adding Machine 10Key Universal’ 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. This universal version works with both iPhone and iPad. The iPad version features a full sized (1:1) keypad with TypeTone, a unique audio aid to help guide your finger back to the center of a key. The total (*) key (iPad or iPhone) can be on either the left or right side (Sharp or Canon style). 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, and print with your favorite printing utility. . Use Apple AirPrint© to print directly. . TypeTone - a major innovation to aid accurate key entry using audio feedback (iPad version). . Full size (1:1) keyboard (iPad version). . Select from a menu of keypad sounds. . 400 lines of paper tape history. . 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. . 3 Orientations: Landscape Left/Right + Portrait (iPad version) ================ 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. The iPad version comes as close to touch-typing as a touch-screen can be. With ‘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)
BA Financial Calculator
Emulates the TI BAII Plus financial calculator, offering identical functionality with a clean and user-friendly interface. It's designed for finance professionals and students preparing for exams like CFA, FRM, and CPA.
- TI BAII Plus emulator
- Identical functionality
- User-friendly interface
- Fast and reliable
- Exam preparation tool
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This app is a full-featured emulator of the TI BAII Plus financial calculator, developed specifically for CFA/FRM candidates and finance professionals. It replicates all functions of the original calculator with a clean, fast, and user-friendly interface. - Identical functionality to the TI BAII Plus - Fast, reliable, and easy to use - Ideal for finance and accounting students and professionals - Optimal for CFA, FRM and CPA exam preparation - Regularly tested and updated Created and supported by a dedicated developer. For questions or feedback, please contact cfa.calculator@gmail.com.
Screenshots
Verdict
The clearest difference is price: BA Financial Calculator at Free against Adding Machine 10Key Universal's $3.99. BA Financial Calculator also leads on ratings volume (3.3K vs 136). Adding Machine 10Key Universal's advantage is ads (none vs shown) and review sentiment (94% vs 65%). On rating, in-app purchases 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
BA Financial Calculator is free to download; Adding Machine 10Key Universal costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.7 for Adding Machine 10Key Universal against 4.8 for BA Financial Calculator. That said, the two scores are not equally well evidenced: BA Financial Calculator has 3.3K ratings behind it against 136, so its average is the more settled of the two. Written reviews are what separate them: 94% of Adding Machine 10Key Universal's written reviews are positive against 65% of BA Financial Calculator's.
Adding Machine 10Key Universal ships an update every 2 months, BA Financial Calculator every 4 months. The most recent releases landed on October 18, 2026 and October 16, 2026 respectively.
| Parameter | Adding Machine 10Key Universal | BA Financial Calculator |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.7 (136 ratings) | 4.8 (3.3K ratings) — better |
| Positive reviews | 94.0% of reviews — better | 64.9% of reviews |
| Number of ratings | 136 | 3.3K — better |
| Update frequency | Every 2 months — better | Every 4 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Ad-supported — better |
| Best chart rank | #179 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.4 — better | 15.1 |
| Further details — not scored | ||
| Size | 23 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Richard Silverman | Angel Montana |
Customer experience
Adding Machine 10Key Universal
BA Financial Calculator
User reviews
Adding Machine 10Key Universal
From 136 App Store ratingsWhat we love
- 👍 Easy to use
- 🧮 Acts like an adding machine
- 🧾 Digital tape for review
- 🖨️ Can print tape
- 💾 Can save/export results
Room to improve
- 🐛 Outdated and no support
- 🐛 Doesn't work for new iPad
- 🐛 Total only shows non-zero decimals
- 🐛 Ridiculous method to clear tape
- 🐛 % key not functional
BA Financial Calculator
From 3.3K App Store ratingsWhat we love
- 🚀 Great app
- 🚀 Exactly like the real thing
- 👍 Useful
- 👍 Solid app
- 👍 Fantastic
Room to improve
- 🐛 Incorrect calculations
- 🐛 Not accurate
- 🐛 Précision à revoir
- 🐛 Wrong answers
- 🐛 TVM DOES NOT WORK! USELESS!
Bugs and requests
Adding Machine 10Key Universal
Reported bugs
11 issues- Cannot save taped
- Cannot export results
- Does not work for new iPad
- Total only shows digits after the decimal that aren't zero
- Method to clear the tape is ridiculous
Show 6 moreShow fewer
- It does not subtract
- No way to do handoff due to lack of iCloud syncing
- % key does not appear to do anything
- +/- key seems to be inoperative
- See index button doesn't do anything
- Review screen pops up every time the app is opened and 'don't ask again' doesn't work
Requested features
6 requests- Add widget
- Add realistic sounds
- Add iCloud sync
- Improve tape clearing method
- Clarify functionality of % and +/- keys
Show 1 moreShow fewer
- Improve instructions for less intuitive features
BA Financial Calculator
Reported bugs
6 issues- Incorrect calculations
- Calculations not accurate
- TVM functions not working
- Errors when trying to use certain features
- App crashes or freezes
Show 1 moreShow fewer
- Incompatibility with certain devices or OS versions
Requested features
7 requests- Dark mode option
- Advanced analytics dashboard
- Instructions on how to use the calculator
- Option to remove ads
- Support for landscape mode and screen split on iPad
Show 2 moreShow fewer
- Ability to change the number of decimal places shown
- Support for more advanced functions like Payback Period and MIRR
In-app purchases
Adding Machine 10Key Universal
No in-app purchases
BA Financial Calculator
No in-app purchases
Questions
Is Adding Machine 10Key Universal free?
Is BA Financial Calculator free?
Which has better reviews, Adding Machine 10Key Universal or BA Financial Calculator?
Do Adding Machine 10Key Universal or BA Financial Calculator have ads?
Which is updated more often, Adding Machine 10Key Universal or BA Financial Calculator?
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