Comparison

Print Calculator vs Smart Adding Machine

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

Head to head
About

Print Calculator

This calculator app provides a digital paper tape for reviewing, editing, and saving calculations. It offers export options to various cloud services and printers, with enhanced features for iPad users like audio-assisted typing.

Highlights
  • Digital paper tape history
  • Edit and recompute calculations
  • Export tape to PDF
  • Save and retrieve tapes as files
  • Add comments to lines
  • Audio-assisted typing on iPad
Read full description

Upgrade your free basic calculator!  'Print Calculator' includes 100 lines of paper tape history for review & edit of prior calculations. Perfect for everyday use, office tasks, and much more.  Print the paper tape history or export it to iBooks®, DropBox®, Email or Printer (see the FAQs). Save & retrieve important paper tape history as files for later use. Also, review & edit numbers, add or delete lines and place comments on any line. 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. This free download has limited lines of paper tape history, limited disk storage, and banner ads. Use one simple In-App Purchase for more lines of paper tape, storage files, and the removal of banner ads. ========== CPA's and Accountants: Please find 'Adding Machine 10 Key Universal' by Richard Silverman in the App Store which is a 10-key compliant adding machine with reverse numeric/operator entry like Casio, sharp or Canon. Business Owners: Please find ‘Accountant Calc Pro by Richard Silverman in the App Store with more lines of paper tape and Tax+ / Tax- keys for point-of-sale receipts in storefronts or small businesses. ========== About Print Calculator: ======== . Universal App for both iPhone and iPad . Freely chain + - x / % 1/x √ . Export a PDF file to the iBooks® app, Dropbox(c), Email, or your favorite printing utility. . Add comments . Add, delete and modify lines and recompute results automatically. . 100 lines of paper tape history (upgraded version) . Undo / Redo . Save and Rename paper tapes to disk for later use . 3 display formats: fixed, fix+, float . Comprehensive set of help screens. . Realistic keypad sounds iPad Features: ======== . TypeTone(c) - a major innovation to aid accurate key entry using audio feedback. . Full size (1:1) realistic keyboard. . 4 Orientations . Lock keypad for left or right handed use iPhone Features: ======== . Choose from 4x5 or 4x6 keypads . Select from 4 background colors . Set a paper tape font size ========== FAQ's Q1. Tell me about Email, Printing, and Exporting a Paper Tape. A1. From the Export dialog, select from: Email, Print, Copy or Open-In. Email includes a pdf attachment. Print requires an AirPrint capable printer. Open-In will cause a menu of 3rd party Apps to appear that can receive a hardcopy of your paper tape; for example, iBooks, DropBox, and 3rd party printer Apps for Brother, HP, Epson, Canon and more. Q2. Can I touch-type? A2. The iPad version has several aids for touch-typing: TypeTone variable audio feedback, 1:1 scale keyboard, or, scale and reposition the keyboard to fit your hand best. There is also support for right and left-handers. Q3. How do I edit an incorrect number or add & delete lines from the paper tape? A3. Touch any line of the paper tape to go into edit mode. Touch the side controls: Add Line, Delete Line. You can also edit numbers, and split groups. Press Done to return to Calculator mode. ====================== IN-APP PURCHASE: . Free download has a limited number of lines of paper tape . Upgrade for 100 lines of paper tape history, more file storage, & no ads IN-APP PURCHASE DETAILS . Payment will be charged to your iTunes account at confirmation of purchase. 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

Smart Adding Machine

Read full description

This app has a numeric keyboard. It may not always be visible. If it is not visible, pressing the input button that has the text 'Insert an Amount or ...', will cause one to appear. If you want to hide it, select the button on the left titled 'Hide KB'. The Adding Machine contains a visual tape with two columns of numbers. The left is the amount you keyed. The right column has in a '1' which is the count. The system puts in a '1' for you. As you add items, the tape grows. The last item is always followed by an empty item colored red. This color red is important because it indicates where your next entry will be placed!!! After entering a number, press the 'Save' button. If this is your first entry, two items will appear on the tape. The first one will contain the number you keyed. The second will be red with the amount showing: 0.00 and a count showing 1. This pattern will continue as you add items On the left side of the screen are 11 buttons in a column. The first six are for moving the red color - but not its contents. This allows for the correction of errors. The first two are: first - go to tape start & second to tape end (red item). The second two go up one item and down one item on the tape. The last of the group switch between amount & count - usually used to change the count from 1. There a 4 named buttons the effect the tape: Clear, Insert (an empty row where the red is, Delete(the row that a red item) and Hide KB. The keyboard has no minus sign. There is a slider button that can be used to cause an number to be negative. It is red for emphasis At least 50 items can be entered. The tape can be scrolled by using your finger to see the entire tape. At the very top of the screen is a 'Help' chevron that switches to a page of help text.

Screenshots

Print Calculator4 screens
Smart Adding Machine4 screens

Verdict

The call

The clearest difference is price: Print Calculator at Free against Smart Adding Machine's $3.99. Print Calculator also leads on iOS requirement (12.3 vs 17.0). Smart Adding Machine's advantage is in-app purchases (none vs 3). On update cadence, 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

Print Calculator is free to download; Smart Adding Machine costs $3.99 up front. Print Calculator sells 3 one-off in-app purchases. Smart Adding Machine asks for nothing beyond the download.

UpkeepUpdate frequency

Print Calculator ships an update monthly, Smart Adding Machine every 3 weeks. The most recent releases landed on September 8, 2026 and September 9, 2026 respectively.

Scorecard3 real differences · 7 level
Print Calculator versus Smart Adding Machine: the parameters behind the verdict, then further details
ParameterPrint CalculatorSmart Adding Machine
PriceFree — better$3.99
Rating4.3 (34 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings34 — better—
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS12.3 — better17.0
Further details — not scored
Size25 MB0 MB
Age rating4+4+
DeveloperRichard SilvermanHarry Detrick

In-app purchases

3 purchases

Print Calculator

One-time3
  • Full Upgrade For iPhone$0.99
  • Full Upgrade for iPad$1.99
  • Full Upgrade for iPhone & iPad$2.99
None

Smart Adding Machine

No in-app purchases

Questions

Is Print Calculator free?
Print Calculator is free to download, with in-app purchases available.
Is Smart Adding Machine free?
Smart Adding Machine costs $3.99, with no in-app purchases.
Do Print Calculator or Smart Adding Machine have ads?
Neither Print Calculator nor Smart Adding Machine shows ads.
Which is updated more often, Print Calculator or Smart Adding Machine?
Print Calculator ships an update monthly, and Smart Adding Machine every 3 weeks. Most recently, Print Calculator was updated on September 8, 2026 and Smart Adding Machine on September 9, 2026.

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