屈折度数 ORT.com vs NumberDrawApp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
屈折度数 ORT.com
This app visualizes refractive errors, from power cross to image formation diagrams. It instantly calculates and displays the main and weak axes of astigmatism, simulates image formation on the retina, and helps distinguish between different types of astigmatism. Ideal for students and professionals in vision training.
- Instant calculation of main and weak astigmatism axes
- Visual power cross display
- Image formation diagram simulation
- Distinguishes astigmatism types
- Simple and speedy operation
- Ideal for vision training students and professionals
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「パワークロスから結像図まで、屈折異常を視覚化する。」 複雑な乱視計算、もう迷わない。 数値を入力するだけで、強主経線・弱主経線の特定から結像状態のシミュレーションまでを一瞬で完了します。 ■ アプリの特徴 1. 瞬時に算出、強主経線と弱主経線 球面度数(S)、乱視度数(C)、乱視軸(Ax)を入力するだけで、瞬時に強主経線・弱主経線の経線角度と度数を計算します。国家試験の計算問題の答え合わせや、臨床での度数確認に最適です。 2. 直感的な「パワークロス」表示 計算結果をパワークロスで図示します。度数の分布を視覚的に捉えることができるため、乱視の構造がより深く理解できます。 3. 結像状態を可視化する「結像図」 入力された度数に基づき、網膜に対して焦点がどこに結ばれているか(前焦線・後焦線)を結像図として描写します。 近視性乱視、遠視性乱視、混合乱視の判別 最小錯乱円の位置関係 等価球面度数のイメージ把握 これらがひと目で分かるため、学生の学習効率を劇的に高めます。 4. シンプルかつスピーディな操作性 臨床現場や勉強の合間にサッと使えるよう、入力の手間を最小限に抑えたUI設計を採用。決定ボタン一つで、必要なすべての情報にアクセス可能です。 ■ こんな方におすすめ 視能訓練士を目指す学生: 国家試験の「屈折」科目の攻略に。 教職員・指導者: 学生へ屈折の概念を視覚的に説明する際のツールとして。 現役の視能訓練士: 複雑な処方や検査結果の再確認、新人教育の補助に。
NumberDrawApp
This utility app generates random numbers within a set range, ensuring no duplicates. It offers optional sound effects, image or text display on the results screen, and the ability to pause and resume draws. Users can also view past results and share them externally.
- Draws random numbers from a specified range
- No duplicate numbers drawn
- Optional sound effects
- Image or text display on results
- Pause and resume draw functionality
- Draw results history
- Share draw results
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A simple app for drawing random numbers. ■ Main Features ・Randomly draws numbers from a specified range (no duplicate numbers). ・A sound effect plays during a draw when silent mode is off. ・Register an image to display it on the draw screen (a simple mode without images is also available). ・Text can also be displayed on the draw result. ・Draws can be paused (you can pick up where you left off even after closing the app). ・Check draw results (history) at any time. ・Share draw results as text outside the app. As this is a free app, ads are displayed on some screens, but never on the draw screen.
Screenshots
Verdict
The clearest difference is review sentiment: 屈折度数 ORT.com at 100% against NumberDrawApp's 50%. 屈折度数 ORT.com also leads on ads (none vs shown). NumberDrawApp's advantage is price (Free vs $0.99) and update cadence (every 3 weeks vs every 39 months). On 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
NumberDrawApp is free to download; 屈折度数 ORT.com costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
屈折度数 ORT.com ships an update every 39 months, NumberDrawApp every 3 weeks. The most recent releases landed on October 1, 2026 and October 2, 2026 respectively.
| Parameter | 屈折度数 ORT.com | NumberDrawApp |
|---|---|---|
| Price | $0.99 | Free — better |
| Positive reviews | 100.0% of reviews — better | 50.0% of reviews |
| Update frequency | Every 39 months | Every 3 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Ad-supported — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 0 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | kohei yamane | Kimihiro Harabuchi |
Customer experience
屈折度数 ORT.com
NumberDrawApp
In-app purchases
屈折度数 ORT.com
No in-app purchases
NumberDrawApp
No in-app purchases
Questions
Is 屈折度数 ORT.com free?
Is NumberDrawApp free?
Do 屈折度数 ORT.com or NumberDrawApp have ads?
Which is updated more often, 屈折度数 ORT.com or NumberDrawApp?
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