Dev Calculator vs Evolreader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dev Calculator
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.
- Bitwise operations (AND, NOT, OR, XOR)
- Shifting and rotating
- Casting support
- 64-bit unsigned integer support
- Base conversions
- No ads
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Full featured, completely free, developer calculator with no ads. Designed primarily for bit operations and quick conversion of bases. In-app purchases don't affect features and are only meant as a way to donate to the developer for his effort. Supports bitwise operations like AND, NOT, OR, XOR. Also supports shifting, rotating and casting. This calculator supports unsigned integers up to 64 bits.
Evolreader
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.
- Read Swift Evolution Proposals
- Easy access to repository
- Streamlined reading experience
- Developer tool
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It's just sort of an easy way to read proposals from the swift-evolution repository.
Screenshots
Verdict
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.
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.
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.
| Parameter | Dev Calculator | Evolreader |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 11 days | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 14.0 — better | 17.4 |
| Further details — not scored | ||
| Size | 0 MB | 5 MB |
| Age rating | 4+ | 17+ |
| Developer | Scott Lassen | Folder, LLC |
Customer experience
Dev Calculator
Evolreader
In-app purchases
Dev Calculator
No in-app purchases
Evolreader
No in-app purchases
