Comparison

addition calc vs Sorto

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

Head to head
About

addition calc

This calculator app clearly displays inputs and sums on separate rows for easy understanding. Perform basic arithmetic operations with large, accessible buttons. Customize decimal places and rounding for precise calculations.

Highlights
  • Separate input and sum display
  • Large buttons for easy input
  • Supports four input operations
  • Customizable decimal places
  • Adjustable rounding settings
  • Optional vibration feedback
Features
Read full description

The input (lower row) and the sum (upper row) are separated, so you can always understand the answer. How to use is simple, just enter the numbers and press the add button. Four input operations can be performed on the input (lower row), and the results can be added. You can set the total number of decimal places and rounding. You can also activate the vibrator when you touch the iPhone.

About

Sorto

Features
Read full description

Sorto is a private, intelligent email app for iPhone and iPad. Connect Gmail, iCloud Mail, or another compatible IMAP account to read, organize, search, compose, and reply—while Sorto helps identify messages that may need your attention. A FAMILIAR INBOX, MADE SMARTER Keep the email workflow you already understand. Sorto adds quiet intelligence without turning your inbox into a complicated dashboard. • Unified inbox with built-in search • Multiple accounts and account-specific mailboxes • Read and unread state, selection, and bulk actions • Compose new messages and reply from the account that received the email • Sent mail and local Sorto Archive UNDERSTAND EMAIL FASTER Sorto places useful context directly where you need it: • A concise Sorto Brief above the original email • Action items extracted from supported messages • Clear category indicators for Needs Attention, Opportunities, Updates, People, Snoozed, and Noise • Visible signals when a conversation may need a reply • Classification corrections that improve future results FOCUS ON WHAT NEEDS ATTENTION Focus creates a guided session from messages that may deserve action. Review the brief and original email, then reply, snooze, archive, mark done, correct the category, or skip for now. PRIVACY IS PART OF THE ARCHITECTURE Classification and supported AI assistance run on your device. Email content is not sent to 3Nsofts servers or third-party AI providers. • Credentials are protected in the device keychain • Replies are sent only after your explicit approval • The original email remains available • No cloud AI service is required for classification SUPPORTED ACCOUNTS • Gmail using a Google App Password • iCloud Mail using an Apple app-specific password • Other compatible IMAP/SMTP accounts IMPORTANT DETAILS Background refresh is opportunistic and controlled by the system. Important-message notifications appear after Sorto refreshes the mailbox; they are not instant push notifications. Sorto Archive is local to Sorto and does not move or delete messages on your email provider’s server. Requires iOS 26 or iPadOS 26. Apple Intelligence features require a supported device. PRIVACY https://3nsofts.com/sorto/privacy TERMS https://3nsofts.com/sorto/terms

Screenshots

addition calc4 screens
Sorto4 screens

Verdict

The call

The clearest difference is iOS requirement: addition calc at 9.3 against Sorto's 26.0. 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

addition calc ships an update monthly, Sorto every 2 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 7 level
addition calc versus Sorto: the parameters behind the verdict, then further details
Parameteraddition calcSorto
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyMonthly — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.3 — better26.0
Further details — not scored
Size13 MB11 MB
Age rating4+4+
DeveloperShozo Obayashiehsan azish

In-app purchases

None

addition calc

No in-app purchases

None

Sorto

No in-app purchases

Questions

Is addition calc free?
addition calc is free to download, with no in-app purchases.
Is Sorto free?
Sorto is free to download, with no in-app purchases.
Do addition calc or Sorto have ads?
Neither addition calc nor Sorto shows ads.
Which is updated more often, addition calc or Sorto?
addition calc ships an update monthly, and Sorto every 2 months. Most recently, addition calc was updated on October 29, 2026 and Sorto on October 24, 2026.

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