Comparison

Adding Machine 10Key for iPad vs Ezenvelopes

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 for iPad

This app emulates a traditional 10-key adding machine with advanced features for iPad users. It offers a full-size keypad with audio feedback, editable paper tapes, and multiple export options for your calculations.

Highlights
  • Traditional 10-key adding machine emulation
  • TypeTone audio feedback for accurate typing
  • Editable paper tape with add/delete lines
  • Save and retrieve paper tape files
  • Export tapes to PDF via iBooks, Dropbox, or email
  • Sharp or Canon style total key placement
Read full description

'Adding Machine 10Key for iPad’ 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 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 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. . 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 ================ FAQ's Q1. What is the difference between 'Adding Machine 10Key for iPad, 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)

About

Ezenvelopes

This app helps you master your finances using the envelope budgeting method. Visually manage your budget with color-coded envelopes, track spending in real-time with AI-powered categorization, and gain insights into your financial habits. Automate budget resets and roll over unused funds for effortless financial control.

Highlights
  • Visual budget management with color-coded envelopes
  • Real-time spending tracking with AI categorization
  • Automated envelope resets and fund rollovers
  • Spending trend insights and refill suggestions
  • Data export and import for full control
  • Privacy-first design
Features
Read full description

Ezenvelopes brings the proven envelope budgeting method to your iPhone. Allocate money to custom categories, track spending in real-time, and never wonder where your money went. KEY FEATURES: Visual Budget Management • Create color-coded envelopes for every budget category • See your remaining balance at a glance • Swipe to edit any envelope instantly Smart Spending Tracking • Log transactions in seconds • Auto-categorize expenses with AI • View complete transaction history Powerful Insights • Spending Trends show where you overspend • Smart Refill Suggestions optimize your budget • Monthly reports track your progress Automation That Works • Auto-reset envelopes monthly • Roll over unused funds automatically • Temporary envelopes for one-time expenses Your Data, Your Control • Export and import your budget data • Complete transaction history • Privacy-first design Always Free. No Ads. Ever. Ezenvelopes is completely free with no advertisements. Focus on your finances, not annoying ads. Perfect for: • First-time budgeters • Cash envelope method enthusiasts • Anyone wanting financial clarity • Families managing household expenses Why Envelope Budgeting Works: The envelope method forces you to plan ahead and prevents overspending. When an envelope is empty, you stop spending in that category. Simple, effective, proven. Start your journey to financial freedom today. Download Ezenvelopes and take control of your money.

Screenshots

Ezenvelopes4 screens

Verdict

The call

The clearest difference is price: Ezenvelopes at Free against Adding Machine 10Key for iPad's $2.99. Ezenvelopes also leads on update cadence (every 3 weeks vs every 2 months). Adding Machine 10Key for iPad's advantage is rating (4.8 vs 4.5) and ratings volume (77 vs 2). On review sentiment, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Ezenvelopes is free to download; Adding Machine 10Key for iPad costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Adding Machine 10Key for iPad holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Adding Machine 10Key for iPad has 77 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 94% of Adding Machine 10Key for iPad's written reviews are positive against 100% of Ezenvelopes's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Adding Machine 10Key for iPad ships an update every 2 months, Ezenvelopes every 3 weeks. The most recent releases landed on October 1, 2026 and September 28, 2026 respectively.

Scorecard6 real differences · 4 level
Adding Machine 10Key for iPad versus Ezenvelopes: the parameters behind the verdict, then further details
ParameterAdding Machine 10Key for iPadEzenvelopes
Price$2.99Free — better
Rating4.8 (77 ratings) — better4.5 (2 ratings)
Positive reviews93.8% of reviews100.0% of reviews — better
Number of ratings77 — better2
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPadiPhone, iPad — better
Requires iOS12.4 — better16.6
Further details — not scored
Size22 MB2 MB
Age rating4+4+
DeveloperRichard SilvermanDima Lukianenko

Customer experience

Adding Machine 10Key for iPad

All ratings77 ratings
Positive94.8%
Neutral1.3%
Negative3.9%
Written reviews64 reviews
Positive93.8%
Neutral3.1%
Negative3.1%

Ezenvelopes

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Adding Machine 10Key for iPad

Reported bugs

2 issues
  • Memory doesn't go past six figures
  • Cannot use memory to calculate GST and VAT values efficiently

Requested features

5 requests
  • Ability to dictate numbers and operations verbally
  • More functions like Tax+, Tax-, MU
  • Ability to write notes beside numbers
  • Dark mode option
  • Make it more intuitive

Ezenvelopes

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Adding Machine 10Key for iPad

No in-app purchases

None

Ezenvelopes

No in-app purchases

Questions

Is Adding Machine 10Key for iPad free?
Adding Machine 10Key for iPad costs $2.99, with no in-app purchases.
Is Ezenvelopes free?
Ezenvelopes is free to download, with no in-app purchases.
Which has better reviews, Adding Machine 10Key for iPad or Ezenvelopes?
Adding Machine 10Key for iPad is rated higher. Adding Machine 10Key for iPad averages 4.8 out of 5 from 77 ratings, while Ezenvelopes averages 4.5 from 2 ratings.
Do Adding Machine 10Key for iPad or Ezenvelopes have ads?
Neither Adding Machine 10Key for iPad nor Ezenvelopes shows ads.
Which is updated more often, Adding Machine 10Key for iPad or Ezenvelopes?
Adding Machine 10Key for iPad ships an update every 2 months, and Ezenvelopes every 3 weeks. Most recently, Adding Machine 10Key for iPad was updated on October 1, 2026 and Ezenvelopes on September 28, 2026.

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