# Quad Calcs vs Constructive Calculator

The clearest difference is ads: Constructive Calculator at none against Quad Calcs's shown. Quad Calcs's advantage is device support (3 vs 1). On price, update cadence, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Quad Calcs ships an update every 2 weeks, Constructive Calculator every 8 days. The most recent releases landed on October 4, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Quad Calcs | Constructive Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/constructive-calculator/id6778157421/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 8 days** |
| Monetization | — | Free |
| Size | 36 MB | 1 MB |
| Requires iOS | **15.8.3** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [Dmitriy Mayorov](https://appshunter.io/developer/6778157423) |

## What reviewers say

### Quad Calcs

[App page](https://appshunter.io/ios/app/quad-calcs/id6741951453)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Constructive Calculator

[App page](https://appshunter.io/ios/app/constructive-calculator/id6778157421)

This calculator performs calculations with arbitrary precision, avoiding rounding errors common in standard calculators. It provides an extensive scientific keypad and can display an unlimited number of digits for exact results.

**Highlights:** Arbitrary-precision calculations, Unlimited digit display, Scientific keypad, Exact results for large numbers, Running tape of calculations, Locale-aware digit grouping

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Quad Calcs free?

Quad Calcs is free to download, with no in-app purchases.

### Is Constructive Calculator free?

Constructive Calculator is free to download, with no in-app purchases.

### Do Quad Calcs or Constructive Calculator have ads?

Quad Calcs shows ads; Constructive Calculator does not.

### Which is updated more often, Quad Calcs or Constructive Calculator?

Quad Calcs ships an update every 2 weeks, and Constructive Calculator every 8 days. Most recently, Quad Calcs was updated on October 4, 2026 and Constructive Calculator on October 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*