Comparison

Flash電卓 フラッシュ暗算×電卓 vs calculator DUO

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

Head to head
About

Flash電卓 フラッシュ暗算×電卓

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シンプルで使いやすい電卓。 毎日の仕事やふとした計算に最適 日常的な足し算、引き算、掛け算、割り算ができます。 ディスプレイの文字が大きく見やすい 特徴: ・使いやすい電卓 ・画面が明るく見やすい ・ふとした時に使える ・フラッシュ暗算ができる ・暇なときやスキマ時間にフラッシュ暗算

About

calculator DUO

This utility app allows for comfortable one-handed calculations by letting you reposition the keypad. It also provides features to save and reuse past answers, correct input with a swipe, and handle both everyday and scientific calculations, including date and time functions.

Highlights
  • One-handed keypad repositioning
  • Save and reuse past answers
  • Swipe to delete/correct input
  • Everyday and scientific functions
  • Date and time calculations
  • Customizable themes and display
Features
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Calculate comfortably with one hand. Put past answers to work. Move the keypad within thumb reach, reuse saved results with a tap, and swipe to correct your input. Handle everyday math, scientific functions, dates and time in one place. WITHIN THUMB REACH Move and resize the left- or right-hand keypad to suit your grip. KEEP THE ANSWERS YOU NEED Save useful results on a visual shelf. Tap to reuse them, recall your last answer, or search your calculation history and mark favorites. CORRECT INPUT WITH CONFIDENCE Swipe to delete a digit or function. The deleted content stays visible until your next input; tap the return button to undo the deletion. FROM EVERYDAY TO SCIENTIFIC Use arithmetic, percentages, powers, roots, logarithms and trigonometric functions. Long-press a result for a large display, with adjustable text, color, font and size. MAKE IT YOURS Five themes, optional digit grouping and an interface in 50 languages. No account is required. Expressions, saved results and calculation history are stored on your device. DATES AND TIME, TOO Find the time between two dates, add or subtract days and hours, and calculate across time zones. The free app may show banner ads. Remove Ads is an optional one-time purchase, with purchase restoration through the same Apple Account.

Screenshots

Flash電卓 フラッシュ暗算×電卓4 screens
calculator DUO4 screens

Verdict

The call

The clearest difference is in-app purchases: Flash電卓 フラッシュ暗算×電卓 at none against calculator DUO's 1. Flash電卓 フラッシュ暗算×電卓 also leads on iOS requirement (14.0 vs 16.5). calculator DUO's advantage is device support. On price 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. calculator DUO sells 1 one-off in-app purchase. Flash電卓 フラッシュ暗算×電卓 asks for nothing beyond the download.

Scorecard3 real differences · 7 level
Flash電卓 フラッシュ暗算×電卓 versus calculator DUO: the parameters behind the verdict, then further details
ParameterFlash電卓 フラッシュ暗算×電卓calculator DUO
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequency—Every 10 days
Ads—Yes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
Devices—iPhone, iPad — better
Requires iOS14.0 — better16.5
Further details — not scored
Size14 MB18 MB
Age rating4+4+
DeveloperHANAUTA INC.Wenbin lei

In-app purchases

None

Flash電卓 フラッシュ暗算×電卓

No in-app purchases

1 purchases

calculator DUO

One-time1
  • Remove Ads$1.99

Questions

Is Flash電卓 フラッシュ暗算×電卓 free?
Flash電卓 フラッシュ暗算×電卓 is free to download, with no in-app purchases.
Is calculator DUO free?
calculator DUO is free to download, with in-app purchases available.

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