ECOunit vs ChemBench

講義管理のストレスを、ECOunitが解決します。 ■ Today View — 今日やるべきことが、すぐ分かる 今日の講義と次の行動をひと目で把握。MapKit連携で教室の場所を3Dマップ上に表示し、出欠状況をリアルタイムで更新。今日のスケジュールを完全に掌握できます。 ■ Session Detail — 出席管理を、シンプルに 出席・遅刻・欠席をワンタップで記録。欠席可能回数を自動集計し、単位取得リスクをリアルタイムで可視化。課題メモや授業資料もこの一画面で完結します。 ■ Timetable View — 時間割を、直感的に 月曜から土曜・1限から7限までの週間グリッドを一覧表示。出席リスクを色でひと目に判断できるインテリジェントなUI。Apple Human Interface Guidelinesに準拠した、iOSに溶け込む洗練されたデザイン。 ■ Courses View — すべての講義を、一箇所で 全履修科目の出席率・単位リスクレベルを横断管理。安全・注意・危険の3段階でリスクを可視化し、単位を落とす前に手を打てます。 ■ iCloud同期 CloudKitによるiCloud同期で、データを自動バックアップ。デバイスを変えてもそのまま引き継がれます。 ■ プライバシーファースト 個人情報の外部送信は一切なし。データはデバイスとiCloudにのみ保存。広告・トラッキングSDKも非搭載です。 ■ 通知機能 授業開始前にプッシュ通知でお知らせ。大事な講義を逃しません。 【こんな方におすすめ】 ・出席管理をもっと楽にしたい大学生 ・単位を確実に取りたい方 ・複数の講義を効率よく管理したい方

ChemBench turns chemistry into interactive reasoning. Adjust conditions, build structures and enter calculation evidence before checking your conclusion. Compare reagents and calculate yield; predict gas quantities and partial pressures; compose reactions and calculate signed enthalpy changes. Key readings appear after the corresponding calculations pass. EIGHT SUBJECTS, 157 LEVELS Stoichiometry, solutions and acids/bases, gases and thermochemistry, redox and electrochemistry, organic structures, equilibrium, ions and precipitation, molecules and crystals. 63 levels are free; 94 require Pro. Each subject includes Intro, Core and Brainer difficulties. PRACTICE AND EXPLORE • A free daily challenge, including rotating questions drawn from Pro levels • Courses, a review queue and subject learning records; assisted and independent solves are recorded separately • Reaction Cards explain the laws using the current problem's values • 13 quick tools, including molar mass, balancing, half-reactions, equilibrium constants, ionic coexistence and solubility curves; unlimited results and non-consumable hints • Periodic trends and comparisons, 3D crystal models, packing calculations and linked concepts • iPad split layouts and handwritten scratch work; resume unfinished problems PRO — ONE-TIME PURCHASE All 157 levels, full post-solve Reaction Card derivations, quick-tool working, configurable saved experiments, and custom problem creation with offline export. Change equations, solution conditions or gas-mixture components and check a new calculation. Pro includes every answer and all Pro features. One-time purchase. No subscription. Three sample answers per category are free to view again. Unlock Pro for all remaining answers. Existing answer-pack purchases can still be restored for their original difficulty. PRIVACY AND MODELS Problems, calculations and local records work offline. No ads or analytics SDK. Each teaching model has stated limits, such as ideal gases, concentration-based acid/base calculations at 25°C and Hess reactions with specified physical states. See the in-app model notes. This is a calculation and reasoning tool; it contains no laboratory procedures and promises no exam-score gains. Support, Privacy Policy and Terms of Use are in Settings.