Comparison

Trigonometric Calculation vs CrewBoard

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

Head to head
About

Trigonometric Calculation

Features
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This is a calculation application for finding angles and side lengths of triangles. 1 We would appreciate a review if there are any problems such as calculation glitches. 2 I hope you will use this application for simple calculations. Please understand that we cannot be held responsible for any impact or disadvantage related to the quality of production activities caused by the calculations in this application.

About

CrewBoard

Features
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CrewBoardは、イベント・ライブ・展示会などのスタッフ配置を効率的に管理するためのアプリです。 【主な機能】 ■ イベント管理 ・イベントの基本情報(日付・会場・時間)を登録 ・テンプレートから素早くイベントを作成 ・イベントデータのエクスポート/インポートで共有 ■ フェーズ&ポジション管理 ・開場前・開演中・終演後などフェーズを自由に設定 ・ポジションごとの定員管理と過不足の可視化 ・フェーズ間の配置コピーで効率的な割り当て ■ スタッフ管理 ・固定スタッフと応援スタッフを分けて管理 ・ロール(役職)による分類と色分け表示 ・レギュラーメンバーのプリセット登録で素早く追加 ■ 配置ビュー ・フェーズ別概要:各フェーズのポジション配置を一覧 ・スタッフ別一覧:スタッフごとの全フェーズ配置を確認 ・タイムライン表示:時間軸に沿った配置を横断的に把握 ・配置表を画像として出力・共有 ■ その他 ・ドラッグ&ドロップと複数選択による直感的な配置操作 ・ダークモード対応(暗い現場での使用に最適) ・横画面対応(タイムラインの視認性向上) 現場のスタッフ配置をもっとスマートに。CrewBoardが、あなたのイベント運営をサポートします。

Screenshots

Trigonometric Calculation4 screens
CrewBoard4 screens

Verdict

The call

The clearest difference is update cadence: CrewBoard at every 10 days against Trigonometric Calculation's every 6 weeks. Trigonometric Calculation's advantage is iOS requirement (15.5 vs 18.6). On price, ads, 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.

UpkeepUpdate frequency

Trigonometric Calculation ships an update every 6 weeks, CrewBoard every 10 days. The most recent releases landed on September 27, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 4 level
Trigonometric Calculation versus CrewBoard: the parameters behind the verdict, then further details
ParameterTrigonometric CalculationCrewBoard
PriceFreeFree
Update frequencyEvery 6 weeksEvery 10 days — better
AdsYesYes
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.5 — better18.6
Further details — not scored
Size5 MB12 MB
Age rating4+4+
DeveloperRisako AsaiRyuichi Shirakawa

In-app purchases

None

Trigonometric Calculation

No in-app purchases

None

CrewBoard

No in-app purchases

Questions

Is Trigonometric Calculation free?
Trigonometric Calculation is free to download, with no in-app purchases.
Is CrewBoard free?
CrewBoard is free to download, with no in-app purchases.
Do Trigonometric Calculation or CrewBoard have ads?
Both Trigonometric Calculation and CrewBoard show ads.
Which is updated more often, Trigonometric Calculation or CrewBoard?
Trigonometric Calculation ships an update every 6 weeks, and CrewBoard every 10 days. Most recently, Trigonometric Calculation was updated on September 27, 2026 and CrewBoard on October 7, 2026.

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