Paper Calc Office vs BuilderCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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)
BuilderCalc
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The construction calculator a contractor actually uses on the job site — tile, drywall, concrete, paint, framing — every material estimate, with waste built in. Tap a project. Answer 2–3 questions. BuilderCalc tells you exactly how much to buy — humanized ("Buy 3 gallons, about $90–$140"), the shopping list to bring, and the mistakes that cost real money every year. FIVE GUIDED PROJECT FLOWS • Paint a room — wall area minus openings, primer + coats, gallon estimate • Tile a bathroom — square footage, box count, waste factor, grout volume • Build a deck (Pro) — joist spacing, beams, posts, footings, decking, fasteners • Install drywall (Pro) — sheets by room, screws, mud, tape • Pour a concrete slab (Pro) — slab, footers, columns, bags or yards EVERY FLOW INCLUDES • The humanized result, not just decimals • The shopping list to bring to the hardware store • The mistakes to dodge — sourced from JLC, Fine Homebuilding, This Old House, and the IRC PLUS 14 PRO CALCULATORS UNDERNEATH Tile · Drywall · Concrete · Paint · Flooring (LVP, hardwood, laminate, carpet) · Framing (studs, plates, headers) · Roofing (squares, underlayment, ridge cap) · Layout (diagonal squareness, stair stringer, rake/run/rise) · Materials waste · Square footage · Conversions · Volume · Coverage · Cost-per-unit WHO IT'S FOR Contractors, remodelers, handymen, framers, finish carpenters. Homeowners running a real project. Anyone who'd rather take an extra coffee break than re-measure for the third time. FREE vs PRO Free forever: paint and tile flows + all 14 calculators. Pro unlocks deck, drywall, and concrete flows; saved-job worksheets; cost-per-square-foot tracking. One-time or subscription. Subscriptions auto-renew until cancelled. Manage in your Apple ID Subscription Settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://doublevision.company/privacy OFFLINE. NO ACCOUNT. NO ADS. The job site doesn't always have signal. Neither does this app, by design.
Screenshots
Verdict
The clearest difference is price: BuilderCalc at Free against Paper Calc Office's $0.99. BuilderCalc also leads on update cadence (every 4 days vs every 2 months). Paper Calc Office's advantage is in-app purchases (none vs 3) and iOS requirement (12.1 vs 16.0). On 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
BuilderCalc is free to download; Paper Calc Office costs $0.99 up front. BuilderCalc sells 3 in-app purchases, starting at $3.99 per month. Paper Calc Office asks for nothing beyond the download.
Paper Calc Office ships an update every 2 months, BuilderCalc every 4 days. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.
| Parameter | Paper Calc Office | BuilderCalc |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.5 (92 ratings) — better | — |
| Positive reviews | 79.8% of reviews | — |
| Number of ratings | 92 — better | — |
| Update frequency | Every 2 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 3 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Richard Silverman | Double Vision USA LLC |
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)
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- 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
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- 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
BuilderCalc
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Paper Calc Office
No in-app purchases
BuilderCalc
- Pro Monthly7 Days trial$3.991 Month
- Pro Yearly7 Days trial$29.991 Year
- Pro Unlock$74.99
Questions
Is Paper Calc Office free?
Is BuilderCalc free?
Do Paper Calc Office or BuilderCalc have ads?
Which is updated more often, Paper Calc Office or BuilderCalc?
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