Comparison

ACalcM vs 定規(Ruler)for iPad

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

Head to head
About

ACalcM

This calculator app enhances standard functionality with an editable list to track numbers and operators. It allows for easy modification of entries, row insertion, and calculation sharing via email. Advanced features include memory functions, rounding options, and design customization.

Highlights
  • Editable calculation list
  • Memory function
  • Row insert function
  • Email calculation results
  • Rounding function
  • Design customization
Features
Read full description

A-CalcM is a calculator that keeps your values and operators in "calculation lists", so you can check every number as you go and fix just one part later. ■ Features • Calculation lists: calculations are recorded in lists (columns) with a running total. Switch between lists with tabs • 4 presets: Simple 0 / Simple 9 / Preset M (classic A-CalcM) / Preset G (everything included) • Compare lists: show two lists side by side (iPhone, portrait) • Subtotal of checked rows, and copy or move checked rows to another list • Text notes: add item names or purposes to cells • Memory (M+ / M− / MR / MC) kept per list • +Tax / −Tax for tax-included and tax-excluded amounts (set the rate in Settings) • Choose rounding and decimal places • Share & export as an image or text. Text is tab-separated, so it pastes straight into spreadsheet apps • Back up by saving to and importing from a file • Customize button layout and size, and font sizes ■ Reading receipts (Preset G) If you already use an AI app, pass it a photo of a receipt, paste its answer, and the rows go into a list. Before importing, you can check that the rows add up to the printed total. • The photo goes directly to the AI app you pick in the share sheet. A-Soft does not receive it • Accuracy depends on the AI model you use. AI is not perfect, so always compare the rows with the receipt before importing ■ Pro (one-time in-app purchase) Available in Settings. • Hides the ad banner area • Up to 31 lists (3 without Pro) • List lock, which protects a list from AC and MC (Preset G) • Send up to 20 receipt photos to the AI app at once (1 at a time without Pro) If you bought "Remove ads" before, it works as Pro. Terms of Use: https://www.a-soft.info/en/terms/ Privacy Policy: https://www.a-soft.info/en/policy/

About

定規(Ruler)for iPad

This free utility app functions as a precise digital ruler for iPads. It supports both millimeter and inch measurements, making it easy to measure any object directly on your device. Designed for simplicity and a cool user experience.

Highlights
  • Digital ruler functionality
  • Millimeter measurement
  • Inch measurement
  • Supports all iPad sizes
  • Simple and cool interface
Read full description

無料の定規アプリです。mmとinch表示で全てのサイズのiPadで正確に測れます。カッコよくて、簡単です。 A free ruler application. You can measure correctly in iPad with the size of everything by mm and inch indication. It's cool and easy.

Screenshots

ACalcM4 screens

Verdict

The call

The clearest difference is in-app purchases: 定規(Ruler)for iPad at none against ACalcM's 1. 定規(Ruler)for iPad also leads on iOS requirement (14.1 vs 17.4). ACalcM's advantage is review sentiment (91% vs 60%) and update cadence (every 4 days vs every 5 months). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ACalcM sells 1 one-off in-app purchase. 定規(Ruler)for iPad asks for nothing beyond the download.

UpkeepUpdate frequency

ACalcM ships an update every 4 days, 定規(Ruler)for iPad every 5 months. The most recent releases landed on October 24, 2026 and October 23, 2026 respectively.

Scorecard5 real differences · 5 level
ACalcM versus 定規(Ruler)for iPad: the parameters behind the verdict, then further details
ParameterACalcM定規(Ruler)for iPad
PriceFreeFree
Rating5.0 (26 ratings) — better—
Positive reviews90.9% of reviews — better60.0% of reviews
Number of ratings26 — better—
Update frequencyEvery 4 days — betterEvery 5 months
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad — betteriPad
Requires iOS17.414.1 — better
Further details — not scored
Size20 MB1 MB
Age rating4+4+
DeveloperAsoft.iOSMayumi Kato

Customer experience

ACalcM

All ratings26 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews11 reviews
Positive90.9%
Neutral0.0%
Negative9.1%

定規(Ruler)for iPad

Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

In-app purchases

1 purchases

ACalcM

One-time1
  • Remove Ads$3.99
None

定規(Ruler)for iPad

No in-app purchases

Questions

Is ACalcM free?
ACalcM is free to download, with in-app purchases available.
Is 定規(Ruler)for iPad free?
定規(Ruler)for iPad is free to download, with no in-app purchases.
Do ACalcM or 定規(Ruler)for iPad have ads?
Both ACalcM and 定規(Ruler)for iPad show ads.
Which is updated more often, ACalcM or 定規(Ruler)for iPad?
ACalcM ships an update every 4 days, and 定規(Ruler)for iPad every 5 months. Most recently, ACalcM was updated on October 24, 2026 and 定規(Ruler)for iPad on October 23, 2026.

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