# Calsy vs Narrus

The clearest difference is iOS requirement: Calsy at 15.2 against Narrus's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Calsy | Narrus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/calsy-smart-quick-simple/id1624719076/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free | — |
| Size | 25 MB | 290 MB |
| Requires iOS | **15.2** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Salvador Garcia Bernal](https://appshunter.io/developer/1623605487) | [AtomGradient](https://appshunter.io/developer/1725768404) |

## What reviewers say

### Calsy

[App page](https://appshunter.io/ios/app/calsy-smart-quick-simple/id1624719076)

This versatile calculator offers a minimalist interface with powerful functionality for everyday calculations. It includes features for exploring facts, calculating gas performance, mastering price increases, converting temperatures and lengths, estimating paint needs, and simplifying number conversions.

**Highlights:** Explore interesting facts, Calculate gas performance and cost, Master price increases and percentages, Convert temperatures and lengths, Calculate paint and garden volume, Simplify number system conversions, Estimate file transfer time

**Features:** macOS Compatibility

**In-app purchases:** none


### Narrus

[App page](https://appshunter.io/ios/app/narrus-new-ai-reader/id6753145556)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calsy free?

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

### Is Narrus free?

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

### Do Calsy or Narrus have ads?

Neither Calsy nor Narrus shows ads.

### Which is updated more often, Calsy or Narrus?

Calsy ships an update monthly, and Narrus monthly. Most recently, Calsy was updated on November 3, 2026 and Narrus on October 30, 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.*