Square Root Pro vs 4 = 1
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
4 = 1
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Solve fun math puzzles! Each puzzle is unique and has at least one possible solution. Use operators to form creative and complex equations. Created by Cory Tripathy and Zoe Cutler
Screenshots
Verdict
The clearest difference is ads: 4 = 1 at none against Square Root Pro's shown. 4 = 1 also leads on update cadence (monthly vs every 8 months). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Square Root Pro ships an update every 8 months, 4 = 1 monthly. The most recent releases landed on July 21, 2026 and September 11, 2026 respectively.
| Parameter | Square Root Pro | 4 = 1 |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 8 months | Monthly — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 30 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | Thomas Bradshaw | Zoe Cutler |
In-app purchases
Square Root Pro
No in-app purchases
4 = 1
No in-app purchases









