LadderTouch vs ラダー図ノート
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LadderTouch
Learn and practice ladder logic, a graphical programming language. Explore sample programs, test your knowledge with quizzes, and build your own functional ladder logic circuits with various elements like timers and counters.
- Learn ladder logic basics
- Execute sample programs
- Test understanding with quizzes
- Create and execute custom ladders
- Timer and counter functions
- Intuitive touch-based interface
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LadderTouch is an app to learn the basics of ladder logic, which is a graphical programming language. This app has three functions. You can learn about that mechanism by executing some of the prepared samples. You can check your understanding with questions. In addition, you can create and execute your own ladder. Ladder functions of the timer, counter, and logical inverse are provided. The user interface is designed to be easy to operate. The lines are written by tracing the screen. You can set an element by tapping a cell at which you want to add it. ---------------ELEMENTS--------------- Input(yellow) Up to 5 elements. You can control the input signal by tapping the buttons at the bottom of the display. Virtual output(red) Up to 5 elements. Internal memory(gray) Up to 20 elements. Virtual output(red) and internal memory(gray) are the same for logical behavior. But the difference is in usage. The virtual output is the last element in the ladder logic chain. The Internal memory is for the processing element of the ladder logic chain. These are an imitation of the actual ladder logic with the output devices. Timer(blue) Up to 5 elements. The timer can be set from 0.1 seconds to 10.0 seconds. The setting unit is 0.1 second. The timer works only 'on delay'. This app does not include 'off delay'. On Delay. ---++++++++++ source -------++++++ destination Off Delay. +++---------- source ++++++++----- destination + ON - OFF Time flows from left to right Counter(green) Up to 5 elements. You can set from 1 to 50. There is no counter reset element in this app. Many other ladder logic software has it. The way to reset the counter is to stop running the ladder. All elements can be inverse in the source area. However, timers and counters cannot do it in the destination area. It is difficult to understand the inverse logic of a timer and counter in the destination area. ---------------EDIT--------------- You can edit ladders only with the paid version. How to write elements or lines Select the pencil icon. To add an element: Tap where you want to set the element and select the element. To draw a line: Draw where you want to write a line. How to delete elements or lines Select the eraser icon. Tap where you want to delete the element. How to scroll Select the scroll icon, then you can scroll. How to remove useless spaces Select the order icon. Tap order icon to remove useless spaces. Line color Green with complete ladder logic. Red with something wrong. --------------Other-------------- There is no function that connects to outer devices.
ラダー図ノート
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現場で思いついたラダー回路を、その場で描いて、メモごと残しておけます。 ■ 起動したら、まず回路の一覧 これまでに描いた回路が、名前とメモと日付で並びます。 「あのとき何を考えて組んだのか」を、開く前に思い出せます。 ■ 回路にメモを残せます 回路ぜんたいへのメモと、部品ひとつずつへのコメント。 どちらも後から検索できます。 ■ 探せます 回路の名前、メモ、部品のコメント、使ったデバイス名(X0 や Y10 など)から探せます。 ■ 描いて、その場で動かせます a接点・b接点・コイルを置いて、縦の線でつないで並列にできます。 入力を切り替えると、通電している線とONになったコイルがその場で分かります。 ■ 現場の外には持ち出しません 保存はすべて端末の中です。アカウント登録も、広告もありません。アプリ内課金のお支払いはお使いの端末とAppleの間で処理され、当方が内容に触れることはありません。 ■ 回路の保存数だけ買い切りで増やせます 描くこと、メモを残すこと、探すことは無料のまま全部使えます。保存できる回路の数だけに上限があり、上限をなくすアプリ内課金があります。月々の支払いは発生せず、上限に達しても、既にある回路の編集・保存はそのまま行えます。 [対応していないもの] タイマ・カウンタ、書き出し、クラウド同期には対応していません。 [ご注意] 本アプリは実機のPLCとは接続しません。画面上の動作は本アプリの論理モデルによる模擬です。 実際の設備の設計・運用の判断は、必ず実機と各メーカーの資料でご確認ください。
Screenshots
Verdict
The clearest difference is price: ラダー図ノート at Free against LadderTouch's $3.99. ラダー図ノート also leads on update cadence (every 9 days vs every 2 months). LadderTouch's advantage is chart position (#67 vs unranked) and iOS requirement (15.5 vs 17.0). On 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
ラダー図ノート is free to download; LadderTouch costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
LadderTouch ships an update every 2 months, ラダー図ノート every 9 days. Both last shipped on October 29, 2026.
| Parameter | LadderTouch | ラダー図ノート |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.6 (91 ratings) — better | — |
| Positive reviews | 74.0% of reviews | — |
| Number of ratings | 91 — better | — |
| Update frequency | Every 2 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | — |
| Best chart rank | #67 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.5 — better | 17.0 |
| Further details — not scored | ||
| Size | 6 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Motonari Hibi | Yuya Tanaka |
In-app purchases
LadderTouch
No in-app purchases
ラダー図ノート
No in-app purchases









