# Dev Calculator vs Evolreader

The clearest difference is update cadence: Evolreader at daily against Dev Calculator's every 11 days. Dev Calculator's advantage is ratings volume (4 vs 1) and iOS requirement (14.0 vs 17.4). On price, rating, 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.

On the App Store both sit at effectively the same score — 5.0 for Dev Calculator against 5.0 for Evolreader. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Dev Calculator ships an update every 11 days, Evolreader daily. The most recent releases landed on October 7, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Dev Calculator | Evolreader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/dev-calculator/id1557104193/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/evolreader/id6498550056/reviews) |
| Number of ratings | **4** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 days | **Daily** |
| Monetization | Free | Free |
| Size | 0 MB | 5 MB |
| Requires iOS | **14.0** | 17.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Scott Lassen](https://appshunter.io/developer/1773765380) | [Folder, LLC](https://appshunter.io/developer/1581692730) |

## What reviewers say

### Dev Calculator

[App page](https://appshunter.io/ios/app/dev-calculator/id1557104193)

A free, ad-free developer calculator focused on bitwise operations and base conversions. It supports unsigned integers up to 64 bits and includes features like shifting, rotating, and casting.

**Highlights:** Bitwise operations (AND, NOT, OR, XOR), Shifting and rotating, Casting support, 64-bit unsigned integer support, Base conversions, No ads

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

**In-app purchases:** none


### Evolreader

[App page](https://appshunter.io/ios/app/evolreader/id6498550056)

Access and read proposals from the swift-evolution repository with ease. This application provides a straightforward way to browse and consume development proposals for the Swift programming language.

**Highlights:** Read Swift Evolution Proposals, Easy access to repository, Streamlined reading experience, Developer tool

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

**In-app purchases:** none


## Frequently asked questions

### Is Dev Calculator free?

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

### Is Evolreader free?

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

### Which has better reviews, Dev Calculator or Evolreader?

Dev Calculator and Evolreader are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.

### Do Dev Calculator or Evolreader have ads?

Neither Dev Calculator nor Evolreader shows ads.

### Which is updated more often, Dev Calculator or Evolreader?

Dev Calculator ships an update every 11 days, and Evolreader daily. Most recently, Dev Calculator was updated on October 7, 2026 and Evolreader on September 28, 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.*