Comparison

Developer Calc Hex Dec Oct Bin vs くるり札

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

Head to head
About

Developer Calc Hex Dec Oct Bin

This app converts numbers between binary, octal, decimal, and hexadecimal bases on a single screen. It also displays color hex codes and RGB values simultaneously. It's designed for developers needing quick base conversions and color code referencing.

Highlights
  • Binary, octal, decimal, hexadecimal conversion
  • Color hex code and RGB display
  • Large 19-digit decimal display
  • Conversion reset toggle
  • Maximum and minimum value display
Features
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The Calculator for Developer Developer Calc includes the following features: ■ Binary, octal, decimal, and hexadecimal in one screen ■ Color Hex code, RGB in one screen ■ The maximum value : 0x0FFF FFFF FFFF FFFF ■ The minimum value : 0xF000 0000 0000 0000 ■ The large 19-digit display of decimal ■ Conversion reset ON/OFF The following features are not included: (Just For Simple) ■ Scientific: trigonometric, hyperbolic, and logarithmic functions ■ Conversion: length, area, volume, speed, weight, temperature; unit arithmetic

About

くるり札

Features
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参加者を登録し、ルーレット形式で直感的に抽選を行えるアプリです。 1名ずつの追加だけでなく、複数名の一括登録にも対応しており、 参加者リストはテンプレートとして保存して繰り返し利用できます。 抽選時には、当選者を次回候補から除外する設定や、 連続当選を防ぐ設定を利用でき、用途に応じた柔軟な抽選が可能です。 さらに、当選結果は履歴として確認でき、 参加者ごとの当選回数を統計表示で把握できます。 イベント、学級活動、くじ引き、順番決めなど、 さまざまな場面で手軽に使える抽選サポートアプリです。

Screenshots

Developer Calc Hex Dec Oct Bin4 screens
くるり札4 screens

Verdict

The call

The clearest difference is iOS requirement: Developer Calc Hex Dec Oct Bin at 9.0 against くるり札's 26.2. 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

Developer Calc Hex Dec Oct Bin ships an update every 5 months, くるり札 every 7 months. The most recent releases landed on October 14, 2026 and October 15, 2026 respectively.

Scorecard1 real difference · 9 level
Developer Calc Hex Dec Oct Bin versus くるり札: the parameters behind the verdict, then further details
ParameterDeveloper Calc Hex Dec Oct Binくるり札
PriceFreeFree
Rating4.1 (15 ratings) — better—
Positive reviews76.3% of reviews—
Number of ratings15 — better—
Update frequencyEvery 5 months — betterEvery 7 months
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better26.2
Further details — not scored
Size4 MB4 MB
Age rating4+4+
DeveloperQQ TSUBASAJun Kishihara

In-app purchases

None

Developer Calc Hex Dec Oct Bin

No in-app purchases

None

くるり札

No in-app purchases

Questions

Is Developer Calc Hex Dec Oct Bin free?
Developer Calc Hex Dec Oct Bin is free to download, with no in-app purchases.
Is くるり札 free?
くるり札 is free to download, with no in-app purchases.
Do Developer Calc Hex Dec Oct Bin or くるり札 have ads?
Both Developer Calc Hex Dec Oct Bin and くるり札 show ads.
Which is updated more often, Developer Calc Hex Dec Oct Bin or くるり札?
Developer Calc Hex Dec Oct Bin ships an update every 5 months, and くるり札 every 7 months. Most recently, Developer Calc Hex Dec Oct Bin was updated on October 14, 2026 and くるり札 on October 15, 2026.

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