Comparison

Paper Calc Office vs ServiceCalc

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

Head to head
About

Paper Calc Office

This app functions as a large-key, four-function calculator designed for office use. It features a virtual paper tape that allows users to review, email, timestamp, and comment on calculations. Users can also retrieve numbers from the tape for new calculations and customize keyboard layouts.

Highlights
  • Large 4-function calculator keys
  • Virtual paper tape with 250 lines
  • Email and print calculation tapes
  • Timestamp and comment on tape lines
  • Retrieve numbers from paper tape
  • Customizable keyboard layouts
Read full description

Paper Calc Office is an easy to use, large key, 4-function calculator tailored for the office environment. Use the powerful paper tape to review numbers you've entered, email, timestamp, put comments on any line, or bring a number from higher in the paper tape down into the current calculation. ================= Selected by MagicSolver for Free App Magic of the day! Selected by AppTurbo for Free "App of the Day" ! ================= Make the keys larger by sliding the LCD display up, or show more paper tape by moving the LCD display down. Two keyboards are included, or, make & save up to three of your own. PaperCalc Office Features: CALCULATOR MODE ================= > Great general purpose office calculator > Oversized +, -, x, /, = keys > 3 display formats . - fixed Point from 2-8 places . - float . - eng (power to the x3) VIRTUAL PAPER TAPE ================== > 250 lines of virtual paper tape > Full-screen view of the paper tape on the right-side scroll page. > Copy numbers or lines to the Apple clipboard > Grab numbers from the tape to use in your current calculation > Add comments to any line > Double tap the calculator's LCD display to clear the paper tape. PRINT & EMAIL ============= > Print (requires iOS4.2 & an AirPrint printer) > Email an exact copy of the paper tape EXTRAS ======= > Move the calculator's LCD display to resize the keyboard. > Create and save custom keyboard layouts to suit your personal needs. > Key click sound (on/off) > Hide rows of keys for extra paper tape space. > Options are easy-to-access in the scroll-to-left view window. > International number formatting (Settings -> General -> International -> Region Format -> select region) Q & A: ===== Q1. How does 'Office' differ from the other PaperCalc calculators? A1. 'Office' has been designed as an easy to use chain calculator with basic math functions. The emphasis is on ease-of-use and an easy-to-follow paper trail of calculations performed. Q2. How do I bring a number from the paper tape into my current calculation? A2. Touch any line of the paper tape and select the number from the menu. Q3. How can I quickly clear the paper tape? A3. Make sure the option to 'Double Tap the LCD to Clear' is ON (see the right-side scroll page). Then just double-tap the LCD display to clear the paper tape (Office Full version only) Q4. How do I use the '%' key? A4. There are two ways to use the % key: 1. Obtain the % of a number: - Press '200 % 5 =' - Answer will be '10' - PaperCalc took 5% of 200. 2. The % of a number is used in the operation on the number: - Press: '200 - 5 % =' - Answer will be '190' - PaperCalc subtracted 5% of 200 from 200 Q5. How do I customize the keyboard layout? A5. Press the large "i" (info) key. Select "Edit Keyboard Layout". Then touch and move keys to change locations. Tap keys to change sizes. Save custom keyboard layouts and rename them for later use. Q6. How do I hide the top row of keys for additional Paper Tape space? A6. Just touch and move the Calculator's LCD display until the keyboard background flashes red. Release the LCD and the keys will remain hidden. PURCHASE DETAILS . Payment will be charged to your iTunes account at confirmation of purchase. . This is a one-time 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

ServiceCalc

This tool automates invoice calculations for service technicians, reducing errors and time spent. It handles labor, parts, tax, and totals, with features like a built-in timer and flashlight.

Highlights
  • Automated labor calculation
  • Parts/materials totaling
  • Configurable tax rates
  • Built-in timer
  • Flashlight function
  • Customizable skins
Features
Read full description

***FEATURED IN KEYNOTES MAGAZINE*** ServiceCalc cuts time spent and reduces errors when totaling invoices out in the field. This tool automates and displays the Labor, Parts/Materials, Tax, and Total. ServiceCalc is ideal for Locksmiths, Electricians, Plumbers, or any other service technicians that frequently write up invoices. Conventional Method: -Sub total line items on invoice -Add up labor on a standard calculator -Write down labor on invoice -Clear the calculator's screen -Add up parts/materials -Write down on invoice -Multiply tax rate -Write down on invoice -Clear calculator's screen -Add labor, parts, and tax -Write total on invoice ServiceCalc Method: -Sub total line items on invoice -Add up labor and tap Labor button -Add up parts and tap Parts button*** -Write down totals on invoice ***Parts are added per line. The timer is used to create a delay when making a single multiplication. This delay gives you enough time to read its subtotal to then transfer onto the invoice.*** After tapping Parts you can turn your iDevice sideways (landscape) for a larger readout. Quickly add the desired labor by tapping the half hour or full hour buttons. Two tax rates are configurable to allow multiple jurisdictions. The secondary tax rate can also be used as a tip calculator. Built in flashlight function for illuminating your invoice. 3 Skins to choose from: Original, Blue Steel, and Magnum ---------------------------------- Totals truncate to 2 decimal places. Tax is rounded up to the hundredths when the halfway point is a value of 5 or higher. Example: if tax = 2.775, actual tax = 2.78 if tax = 2.77445, actual tax = 2.78 if tax = 2.771, actual tax = 2.77 ---------------------------------- Compatibility: iPhone / iPod touch on iOS 8.0 or later and iPad on iOS 12.0 or later. Found a bug? Something not working? Have a suggestion? Feel free to contact me via email: farren@phoxlocks.com

Screenshots

Paper Calc Office4 screens
ServiceCalc4 screens

Verdict

The call

The clearest difference is monetization model: Paper Calc Office at free against ServiceCalc's paid. Paper Calc Office also leads on rating (4.5 vs 4.0) and ratings volume (90 vs 4). ServiceCalc's advantage is review sentiment (91% vs 80%). On price, update cadence, ads and in-app purchases 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

Paper Calc Office costs $0.99 and ServiceCalc $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Paper Calc Office holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: Paper Calc Office has 90 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 80% of Paper Calc Office's written reviews are positive against 91% of ServiceCalc's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 12, 2026 and September 8, 2026 respectively.

Scorecard4 real differences · 6 level
Paper Calc Office versus ServiceCalc: the parameters behind the verdict, then further details
ParameterPaper Calc OfficeServiceCalc
Price$0.99$0.99
Rating4.5 (90 ratings) — better4.0 (4 ratings)
Positive reviews80.5% of reviews90.9% of reviews — better
Number of ratings90 — better4
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPodiPhone, iPod
Requires iOS12.112.0 — better
Further details — not scored
Size3 MB1 MB
Age rating+44+
DeveloperRichard SilvermanFarren Domenici

Customer experience

Paper Calc Office

All ratings90 ratings
Positive86.7%
Neutral6.7%
Negative6.7%
Written reviews87 reviews
Positive80.5%
Neutral9.2%
Negative10.3%

ServiceCalc

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews11 reviews
Positive90.9%
Neutral9.1%
Negative0.0%

Bugs and requests

Paper Calc Office

Reported bugs

7 issues
  • Info and Settings wheel closes app on iPhone
  • Print function no longer working, app shuts down
  • App crashes when hitting print
  • Freezes and crashes when adding and editing multiple notes
  • Crashes every time after iOS updates (iOS 14.2, iOS 17.4.1)
Show 2 more
  • Email 'send' button is grayed out and not functioning
  • App closes when accessing settings/info wheel

Requested features

11 requests
  • Add a column for references
  • Add memory buttons or brackets
  • More calculations before clearing tape
  • iPad version
  • Dark mode option
Show 6 more
  • Ability to resize keyboard (mentioned as an advantage in a con review, but also a feature request for others)
  • Fix email function
  • Fix print function
  • Improve speed when launching app
  • Digital version of desktop paper tape calculator with large keys
  • Full screen paper tape by swiping

ServiceCalc

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Paper Calc Office

No in-app purchases

None

ServiceCalc

No in-app purchases

Questions

Is Paper Calc Office free?
Paper Calc Office costs $0.99, with no in-app purchases.
Is ServiceCalc free?
ServiceCalc costs $0.99, with no in-app purchases.
Which has better reviews, Paper Calc Office or ServiceCalc?
Paper Calc Office is rated higher. Paper Calc Office averages 4.5 out of 5 from 90 ratings, while ServiceCalc averages 4.0 from 4 ratings.
Do Paper Calc Office or ServiceCalc have ads?
Neither Paper Calc Office nor ServiceCalc shows ads.
Which is updated more often, Paper Calc Office or ServiceCalc?
Paper Calc Office ships an update every 2 months, and ServiceCalc every 2 months. Most recently, Paper Calc Office was updated on September 12, 2026 and ServiceCalc on September 8, 2026.

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