Comparison

addition calc vs AIMailMind

Price, ratings, monetisation and update history for both apps, side by side โ€” 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

AIMailMind

Features
Read full description

MailMind is a native iOS email client that uses AI to triage, summarize, and translate your inbox โ€” so you spend less time reading and more time responding to what actually matters. WHY MAILMIND Your inbox is noisy. Bank alerts, subscription renewals, package deliveries, security codes, promotions, and the occasional real message from a human all compete for attention. MailMind reads each email on your device and gives you a clear, color-coded picture of what's happening and what needs action. AI-POWERED SMART INBOX โ€ข Urgency detection โ€” every message is tagged high / medium / low so you know what to open first โ€ข Plain-language summaries โ€” a one-sentence explanation of what each email means โ€ข Suggested actions โ€” "Act now", "Act this week", "Review only", or "Archive" โ€” based on the message content โ€ข Entity extraction โ€” amounts, currencies, organizations, and deadlines pulled out automatically โ€ข Smart categories โ€” security, billing, transactions, promotions โ€” filter your inbox with one tap MULTIPLE PROTOCOLS, MULTIPLE PROVIDERS โ€ข IMAP and POP3 support for virtually any mail provider โ€ข Region presets for iCloud, Outlook, Yahoo, Zoho, Proton Mail, QQ, NetEase 163/126, Sina, Yahoo! Japan, DOCOMO, OCN, and more โ€ข Custom IMAP setup for self-hosted or enterprise servers โ€ข Full send support with attachments, drafts, and threading MULTILINGUAL AI MailMind understands email in English, Chinese, and Japanese โ€” and generates AI summaries in whichever language you prefer. Perfect for anyone who sends and receives mail across languages. PRIVACY-FIRST DESIGN โ€ข No developer-operated server stores your email โ€ข All messages live on your device; credentials are stored in the iOS Keychain โ€ข AI processing is user-initiated only โ€” a message goes to our AI gateway just for that one request and is never retained, logged, or used for training โ€ข No trackers, no ads, no analytics SDKs NATIVE iOS Built from scratch with SwiftUI. Dark mode, dynamic type, haptics, multi-account, swipe actions, pull-to-refresh, and a bottom tab bar that feels at home on iOS 17 and later. TRY DEMO MODE Not ready to connect your email? Tap "Try Demo" on the add-account screen to explore MailMind with sample messages, pre-baked AI analyses, and all categories โ€” no credentials required. REQUIREMENTS โ€ข iOS 17 or later โ€ข Compatible with iPhone and iPad โ€ข Optional: an email account with IMAP/POP3 access MailMind does not require a subscription. There are no in-app purchases, no ads, and no account signup with the developer.

Screenshots

addition calc4 screens
AIMailMind2 screens

Verdict

The call

The clearest difference is update cadence: AIMailMind at every 4 days against addition calc's monthly. addition calc's advantage is iOS requirement (9.3 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท 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, AIMailMind every 4 days. The most recent releases landed on November 2, 2026 and November 9, 2026 respectively.

Scorecard2 real differences ยท 6 level
addition calc versus AIMailMind: the parameters behind the verdict, then further details
Parameteraddition calcAIMailMind
PriceFreeFree
Positive reviews100.0% of reviewsโ€”
Update frequencyMonthlyEvery 4 days โ€” better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeโ€”
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS9.3 โ€” better17.0
Further details โ€” not scored
Size13 MB7 MB
Age rating4+4+
DeveloperShozo ObayashiSingularity Games Co., Ltd.

In-app purchases

None

addition calc

No in-app purchases

None

AIMailMind

No in-app purchases

Questions

Is addition calc free?
addition calc is free to download, with no in-app purchases.
Is AIMailMind free?
AIMailMind is free to download, with no in-app purchases.
Do addition calc or AIMailMind have ads?
Neither addition calc nor AIMailMind shows ads.
Which is updated more often, addition calc or AIMailMind?
addition calc ships an update monthly, and AIMailMind every 4 days. Most recently, addition calc was updated on November 2, 2026 and AIMailMind on November 9, 2026.

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