Comparison

bwCalc(シンプルにデザインされた計算機、税込みも表示) vs DsStopWatch

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

Head to head
About

bwCalc(シンプルにデザインされた計算機、税込みも表示)

A calculator app designed with aesthetic themes for iPhones, offering features like tax calculation, history logging, and font customization. It also includes advanced 10-bit, 2-bit, and 16-bit conversion capabilities.

Highlights
  • Themed calculator designs (Black, White, Color, Classic)
  • Copy/paste results with double-tap
  • Swipe to delete digits
  • Tax calculation with input copying
  • Number font customization
  • Calculation history with swipe-to-delete
  • Binary, decimal, and hexadecimal conversion
Features
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ブラックとホワイト、そしてカラフルなiPhoneのために誂えた計算機です。  ーブラック:モノリスのような一体感  ーホワイト:黒いラインがクールな佇まい  ーカラー :iPhone XRのカラーにジャストフィット  ーClassic :懐かしい計算機 ・結果表示部をダブルタップするとコピーやペーストができます。 ・結果表示部を横にスワイプすると1桁づつ削除します。 ・+taxの値をタップすると値を入力欄にコピーします。 ・数字のフォントを変更できます。 ・右上をタップすると計算結果の履歴を表示します。   履歴をタップすると入力欄に表示します。   履歴を横にスワイプすると一行づつ削除できます。   履歴のゴミ箱をタップすると全部削除できます。 ・左上をタップすると設定画面に移ります。   タップ音を2種類から選べます。   =キーをタップした時に税込み表示ができます。   フォントを変更できます。   起動中はスリープ状態にならないようにできます。   画面上部に小さく時刻を表示できます。 ・実はちょっとマニアックな10進、2進、16進変換機能付きです。   設定画面の右上のDBHをタップしてください。

About

DsStopWatch

This utility allows for precise time measurement with multiple stopwatches. It offers real-time recording, saving, and copying of time data in CSV format. Advanced features include button operation customization, lock mode for preventing accidental presses, and the ability to synchronize operations.

Highlights
  • Multiple stopwatches
  • Real-time time recording
  • Save and copy time records (CSV)
  • Customizable button operations
  • Lock mode for accidental presses
  • Light and dark screen modes
  • Operation cancellation and modification
Features
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1. How to operate (1) Button operation Operable buttons are colored. (2) Time record The measured time is recorded on the record screen in real time. To see the new record screen, press the Record> button. To see the old record screen, press the R button. To clear the time record, press the Clear All button twice. To save the time record, press the Save All button twice. Time record saves are overwritten each time. When you press the Copy button, the time record is copied to the clipboard in csv format, so you can paste it to Numbers etc. Selecting a name will display the selected person's time record. By selecting the unit distance for lap timing, the lap time for each unit distance is displayed. (3) Button operation reaction Vibration by button operation, click sound, support voice are possible. Operate with the Vibration button, Click button, and Voice button. (4) Name change You can change the name. Press the Name button or RUN button to enter LOCK mode, select a name to change the name, and press the return key to confirm the name change. Even if you change the name, pressing anything other than the return key cancels the name change. (5) LOCK mode Button operation can be prohibited to prevent erroneous button operation. If you press the Name button or RUN button to enter LOCK mode, button operation is prohibited. To cancel LOCK mode, press the Name button or LOCK button again. (6) Light screen and dark screen You can switch between light screen and dark screen. Please push the Light button or the Dark button. (7) Operation cancellation function The operation cancellation function can cancel the button operation. Only the last button operation can be canceled. Press the Undo button immediately after pressing the button. (8) Operation change function The operation change function can cancel and change the button operation. Only the last button operation can be changed. Immediately after pressing the button, press the Undo button, press the Sync button, and then press the button you want to change. (9) Operation addition function Operation addition function can be added by synchronizing button operation. It can be added in sync with the last button operation. Immediately after pressing the button, press the Sync button, then press the button you want to add. (10) Select mode Select mode allows you to operate multiple buttons at the same time. Press the Sel button to switch to select mode, select multiple buttons you want to operate at the same time, and then press the Sel button at the bottom. (11) Tapping mode The tapping mode allows you to tap first and then assign the tapping operation to any button on the stopwatch. Press the Tap button to switch to tapping mode, press the Tapping button, then press the button you want to assign to the stopwatch. You can also use A, G, 0 on the external keyboard and 0 on the numeric keypad instead of the Tapping button. The Tapping button can be memorized up to 10 times. 2. Operation Lap time and total time are displayed repeatedly in the range from 00:00.0 to 59:99.9. The time record on the record screen is displayed repeatedly in the range from 0:00:00.0 to 9:59:59.9. The Lap button also displays the number of Laps. The Lap button repeats the display in the range from 0 to 9. Lap on the record screen is displayed repeatedly in the range from 0 to 99. The resolution of the time display is 0.1 seconds, but the internal time is measured with a higher resolution. The action of each button starts at the moment the button is pressed and released. (Same as apple genuine app.) Even if you quit the app or turn off the power of the smartphone, it will continue to keep time when you start the app. There is no background processing, so this app will not drain your battery when you close it.

Screenshots

bwCalc(シンプルにデザインされた計算機、税込みも表示)4 screens
DsStopWatch4 screens

Verdict

The call

The clearest difference is ads: DsStopWatch at none against bwCalc(シンプルにデザインされた計算機、税込みも表示)'s shown. DsStopWatch also leads on rating (4.3 vs 4.0) and monetization model (free vs ad-supported). bwCalc(シンプルにデザインされた計算機、税込みも表示)'s advantage is iOS requirement (10.0 vs 12.0). On price, 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

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

ReceptionRating · Positive reviews · Number of ratings

DsStopWatch holds the better App Store score, 4.3 against 4.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

UpkeepUpdate frequency

bwCalc(シンプルにデザインされた計算機、税込みも表示) ships an update every 3 months, DsStopWatch every 2 months. The most recent releases landed on June 5, 2026 and June 7, 2026 respectively.

Scorecard6 real differences · 4 level
bwCalc(シンプルにデザインされた計算機、税込みも表示) versus DsStopWatch: the parameters behind the verdict, then further details
ParameterbwCalc(シンプルにデザインされた計算機、税込みも表示)DsStopWatch
PriceFreeFree
Rating4.0 (1 ratings)4.3 (3 ratings) — better
Positive reviews85.7% of reviews
Number of ratings13 — better
Update frequencyEvery 3 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS10.0 — better12.0
Further details — not scored
Size15 MB9 MB
Age rating4+4+
DeveloperKeietsu YasuharaRyuichi Kato

Customer experience

bwCalc(シンプルにデザインされた計算機、税込みも表示)

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive85.7%
Neutral0.0%
Negative14.3%

DsStopWatch

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

bwCalc(シンプルにデザインされた計算機、税込みも表示)

No in-app purchases

None

DsStopWatch

No in-app purchases

Questions

Is bwCalc(シンプルにデザインされた計算機、税込みも表示) free?
bwCalc(シンプルにデザインされた計算機、税込みも表示) is free to download, with no in-app purchases.
Is DsStopWatch free?
DsStopWatch is free to download, with no in-app purchases.
Which has better reviews, bwCalc(シンプルにデザインされた計算機、税込みも表示) or DsStopWatch?
DsStopWatch is rated higher. bwCalc(シンプルにデザインされた計算機、税込みも表示) averages 4.0 out of 5 from 1 ratings, while DsStopWatch averages 4.3 from 3 ratings.
Do bwCalc(シンプルにデザインされた計算機、税込みも表示) or DsStopWatch have ads?
bwCalc(シンプルにデザインされた計算機、税込みも表示) shows ads; DsStopWatch does not.
Which is updated more often, bwCalc(シンプルにデザインされた計算機、税込みも表示) or DsStopWatch?
bwCalc(シンプルにデザインされた計算機、税込みも表示) ships an update every 3 months, and DsStopWatch every 2 months. Most recently, bwCalc(シンプルにデザインされた計算機、税込みも表示) was updated on June 5, 2026 and DsStopWatch on June 7, 2026.

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