Place Value Subtraction vs Square Root Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Place Value Subtraction
This math app visually demonstrates subtraction using place value discs. It helps users understand regrouping and the base-ten system through interactive problems with 1-3 digits.
- Visual subtraction with place value discs
- Supports 1-3 digit numbers
- Random problem generation
- Customizable problems
- Focuses on regrouping concepts
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Place Value Subtraction helps students understand subtraction using place value discs. A strong understanding of place value in the base ten system is essential for long-term mathematical learning. In subtraction, place value helps students understand how regrouping works. The app provides a visual, step-by-step way to subtract two numbers using place value discs. Students can solve randomly generated problems or enter their own problems. Features: * Numbers with 1–3 digits * Randomly generated problems * Custom problems * Visual place value discs * Step-by-step subtraction practice * Clear visualization of regrouping Part of the iDevBooks Place Value series: * Place Value Addition * Place Value Subtraction * Place Value Multiplication * Place Value Division Other iDevBooks Math Apps: Other iDevBooks math apps include Visual Fractions Decimals Percentages, Decimal Rounding, Whole Number Rounding, Column Subtraction, Column Addition, Long Division, Long Multiplication, Lattice Multiplication, Partial Differences Subtraction, Partial Quotients Division, Partial Sums Addition, and more. Feedback: New ideas to make this app better are welcome. Please visit idevbooks.com to give feedback. Privacy: This app has no ads, no in-app purchases, and does not transmit user data during operation. The app also does not contain links to other apps or to the web.
Square Root Pro
This app helps you mentally calculate square roots to two decimal places. It supports multiple languages and an internationalized numeric system for global users.
- Mental square root calculation
- Accuracy to 2 decimal places
- Multilingual support (English, Spanish, French, German, Chinese)
- Internationalized numeric system
- Educational tool for math and science
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Square roots are often found in math & science and quick calculation is sometimes necessary in order to tackle common questions. This app teaches you mentally calculate square roots to reasonable accuracy (2 decimal places). Switch easily between English, Spanish, French, German & Chinese (Mandarin). Fully internationalized numeric system.
Screenshots
Verdict
The clearest difference is price: Square Root Pro at Free against Place Value Subtraction's $3.99. Square Root Pro also leads on update cadence (every 8 months vs every 21 months) and ratings volume (3 vs 1). Place Value Subtraction's advantage is ads (none vs shown). On rating, in-app purchases, device support and iOS requirement 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
Square Root Pro is free to download; Place Value Subtraction costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Place Value Subtraction against 5.0 for Square Root Pro. Both are backed by a comparable volume of ratings — 1 and 3 respectively.
Place Value Subtraction ships an update every 21 months, Square Root Pro every 8 months. The most recent releases landed on August 22, 2026 and October 8, 2026 respectively.
| Parameter | Place Value Subtraction | Square Root Pro |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 5.0 (1 ratings) | 5.0 (3 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 21 months | Every 8 months — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Ad-supported — better |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 17.6 | 17.6 |
| Further details — not scored | ||
| Size | 0 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Esa Helttula | Thomas Bradshaw |
Customer experience
Place Value Subtraction
Square Root Pro
In-app purchases
Place Value Subtraction
No in-app purchases
Square Root Pro
No in-app purchases
Questions
Is Place Value Subtraction free?
Is Square Root Pro free?
Which has better reviews, Place Value Subtraction or Square Root Pro?
Do Place Value Subtraction or Square Root Pro have ads?
Which is updated more often, Place Value Subtraction or Square Root Pro?
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