Drag Calc vs Smart Math Drills
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Drag Calc
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This is a calculation aid app for people who have difficulty in writing ( developmental disabilities ). By dragging the number cards, they may be able to do the math on their own! The calculation results can be saved to the iPhone camera role. ### How to use ### Drag the number cards to make and solve math problems. Use the camera button to save the answers one by one in the camera roll. Up to 12 answers can be made into an image and saved in the camera roll. ### Operation details ### == Arithmetic screen == Cards of numbers and " + - * / " can be dragged. The large horizontal black line is double-layered and can be dragged. You can delete the card by dragging it to the trash can or outside the blackboard. Button "C" is the clear button to return to the initial state. The camera mark will save the answers one by one in the camera roll. (At the same time, it's also stored inside the app)' == Setup screen == The background color can be changed. Up to 12 answers saved in the application can be combined and saved in the camera roll. Button "C" clears the answer summary ### Motive for the creation ### I''ve learned that some children understand how column addition works, but they think they don't because they stumble over their writing.' It takes them (those children) 30 minutes to write the numbers, so when someone looks at their answer sheet, it looks like they don't understand arithmetic. That's why we decided to create an app that allows them to do calculations by dragging number cards. (Answers will not be judged, but instead a note to keep the process of the calculation.) I would be very happy if more children could learn to do arithmetic and become more confident.
Smart Math Drills
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- Smart Math Drills is a simple and smart free math learning app for toddlers to elementary school students that visualizes changes in numbers. - When adding and subtracting, it is very important to understand the concept that 10 pieces are a block. With this app, you can see the changes in numbers with colors like math counters, and the number bounds when the digits go up are automatically displayed, making it easier to understand. - Let's memorize the multiplication tables by listening to the audio. - You can also learn how to calculate two-digit multiplication and division by seeing the process of column addition. - You can also create a drill with any number you like. - It is simple and lightweight, and there is no need to enter troublesome answers, so you can proceed quickly with a single button and your calculation skills will improve rapidly. - You can write letters by tracing the screen, so you can make draft notes for calculations. If you make a mistake, look at the correct answer and correct it in red. You can also practice memorizing numbers. - It's completely free and there are no communication fees and no charges (excluding advertisements). [All] - From the red buttons “Principle”, use the arrow buttons (long press to fast forward) to understand the change of numbers. - From the yellow buttons, let's do a 10-question drill. - From the blue buttons “Custom”, set the number and create a 10-question drill. - Below the red buttons “Principle (column)”, column calculation is displayed. - If you score 100 points, you will level up (max Lv99) and the pictures that appear ( illust-dayori.com ) will change. No ads are displayed. - If you press the "?" button on each page, a hint explanation and audio will appear. [Addition] - From the green buttons "= 5" and "= 10", let's memorize the numbers that add up to 5 and 10. [Multiplication] - From the red buttons “Principle”, let's understand the multiplication table and memorize it with audio. [Number] - Let's memorize the numbers from 1 to 100 by writing them or listening to the audio.
Screenshots
Verdict
The clearest difference is in-app purchases: Smart Math Drills at none against Drag Calc's 1. Smart Math Drills also leads on update cadence (every 2 days vs every 2 months) and iOS requirement (11.0 vs 13.0). On price, ads 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
Both are free to download. Drag Calc sells 1 one-off in-app purchase. Smart Math Drills asks for nothing beyond the download.
Drag Calc ships an update every 2 months, Smart Math Drills every 2 days. The most recent releases landed on October 25, 2026 and October 10, 2026 respectively.
| Parameter | Drag Calc | Smart Math Drills |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 70 MB |
| Age rating | 4+ | 4+ |
| Developer | MITSURU OMURA | Satoru Morita |
In-app purchases
Drag Calc
- Heart Icon$2.99
Smart Math Drills
No in-app purchases









