Comparison

Adding Machine 10Key iPhone vs Subpilot

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

Subpilot

This app helps you manage and cancel unwanted recurring payments. It tracks all your subscriptions in one place, provides cancellation guides for popular services, and offers insights into your spending habits to save you money.

Highlights
  • Track unlimited subscriptions
  • Monitor monthly and yearly spending
  • Get subscription spending insights
  • Step-by-step cancellation guides
  • Organize recurring payments
Features
Currently charting
Read full description

Take Control of Your Subscriptions with Subpilot. Never lose track of your monthly subscriptions again. Subpilot is your personal subscription manager that helps you monitor, organize, and cancel unwanted subscriptions - saving you money every month. Track All Subscriptions in One Place: Add unlimited subscriptions from Netflix, Spotify, gym memberships, and more. View total monthly and yearly spending at a glance. Get insights into your subscription habits with detailed analytics. Easy Cancellation Guides: Step-by-step cancellation instructions for 500+ popular services. Stop wasting money on forgotten subscriptions. Download Subpilot today and take control of your recurring payments! Terms of Use: https://legal.getsubpilot.finelo.com/terms Privacy Policy: https://legal.getsubpilot.finelo.com/en/privacy Please note: Access to the app requires a subscription. Some content may also require additional one-time purchases.

Screenshots

Adding Machine 10Key iPhone4 screens
Subpilot4 screens

Verdict

The call

The clearest difference is price: Subpilot at Free against Adding Machine 10Key iPhone's $2.99. Subpilot also leads on update cadence (every 4 days vs every 5 weeks) and ratings volume (5K vs 131). Adding Machine 10Key iPhone's advantage is in-app purchases (none vs 11) and review sentiment (95% vs 81%). On rating, ads 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

Subpilot is free to download; Adding Machine 10Key iPhone costs $2.99 up front. Subpilot sells 11 in-app purchases, starting at $9.99 per 7 days. 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 4.5 for Subpilot. That said, the two scores are not equally well evidenced: Subpilot has 5K 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 81% of Subpilot's.

UpkeepUpdate frequency

Adding Machine 10Key iPhone ships an update every 5 weeks, Subpilot every 4 days. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.

Scorecard8 real differences · 3 level
Adding Machine 10Key iPhone versus Subpilot: the parameters behind the verdict, then further details
ParameterAdding Machine 10Key iPhoneSubpilot
Price$2.99Free — better
Rating4.6 (131 ratings) — better4.5 (5K ratings)
Positive reviews95.2% of reviews — better80.8% of reviews
Number of ratings1315K — better
Update frequencyEvery 5 weeksEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
Best chart rank#118#25 — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.4 — better16.2
Further details — not scored
Size10 MB102 MB
Age rating4+4+
DeveloperRichard SilvermanSubpilot

Customer experience

Adding Machine 10Key iPhone

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

Subpilot

All ratings5,044 ratings
Positive90.4%
Neutral3.3%
Negative6.3%
Written reviews778 reviews
Positive80.8%
Neutral3.1%
Negative16.1%

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

Subpilot

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Adding Machine 10Key iPhone

No in-app purchases

11 purchases

Subpilot

Subscriptions4
  • Subpilot Premium3 Days trial$9.997 Days
  • Subpilot Premium$19.991 Month
  • Subpilot Premium$24.991 Month
Show 1 more
  • Subpilot Premium$99.991 Year
One-time7
  • 1 Auto Cancellation$4.99
  • 5 Auto Cancellations$17.99
  • Free Trial Detector$39.99
Show 4 more
  • Free Trial Detector$49.99
  • Concierge Pro$49.99
  • Concierge Pro$59.99
  • Free Trial Detector$69.99

Questions

Is Adding Machine 10Key iPhone free?
Adding Machine 10Key iPhone costs $2.99, with no in-app purchases.
Is Subpilot free?
Subpilot is free to download, with in-app purchases available.
Which has better reviews, Adding Machine 10Key iPhone or Subpilot?
Adding Machine 10Key iPhone is rated higher. Adding Machine 10Key iPhone averages 4.6 out of 5 from 131 ratings, while Subpilot averages 4.5 from 5K ratings.
Do Adding Machine 10Key iPhone or Subpilot have ads?
Neither Adding Machine 10Key iPhone nor Subpilot shows ads.
Which is updated more often, Adding Machine 10Key iPhone or Subpilot?
Adding Machine 10Key iPhone ships an update every 5 weeks, and Subpilot every 4 days. Most recently, Adding Machine 10Key iPhone was updated on October 14, 2026 and Subpilot on October 13, 2026.
Which is more popular, Adding Machine 10Key iPhone or Subpilot?
Adding Machine 10Key iPhone currently peaks at #118 in the App Store charts, and Subpilot at #25. Chart position reflects recent download velocity rather than total install base.

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