# Zinier vs Dev Calc

The clearest difference is rating: Zinier at 2.7 against Dev Calc's 2.0. Zinier also leads on in-app purchases (none vs 1) and ads (none vs shown). Dev Calc's advantage is review sentiment (60% vs 27%) and iOS requirement (13.0 vs 16.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Dev Calc sells 1 in-app purchase, starting at $1.99 per month. Zinier asks for nothing beyond the download.

Zinier holds the better App Store score, 2.7 against 2.0. That said, the two scores are not equally well evidenced: Zinier has 22 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 27% of Zinier's written reviews are positive against 60% of Dev Calc's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 30, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Zinier | Dev Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (22 ratings)](https://appshunter.io/ios/app/zinier/id1043749020/reviews)** | [2.0 (2 ratings)](https://appshunter.io/ios/app/dev-calc-developer-calculator/id1576503219/reviews) |
| Number of ratings | **22** | 2 |
| Positive reviews | 27.3% of reviews | **60.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 64 MB | 51 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Zinier Inc.](https://appshunter.io/developer/1002873906) | [Toshiya Hondo](https://appshunter.io/developer/1571875732) |

## What reviewers say

### Zinier

[App page](https://appshunter.io/ios/app/zinier/id1043749020)

This mobile application streamlines field service operations for installation and maintenance. It provides technicians with customizable workflows, AI-powered automation, and real-time communication between field staff and the back office.

**Highlights:** Customizable mobile workflows, AI-powered automation, Real-time task progress updates, Push notifications, Field service lifecycle management

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

**In-app purchases:** none


### Dev Calc

[App page](https://appshunter.io/ios/app/dev-calc-developer-calculator/id1576503219)

This app assists developers and programmers with immediate numeric conversions between binary, octal, decimal, and hexadecimal formats. It also provides tools for generating color codes from RGB, HSL, and HSV values, with a color picker and preset options.

**Highlights:** Numeric conversion (Bin, Oct, Dec, Hex), Signed/Unsigned options, Adjustable bit sizes (8, 16, 32, 64), RGB, HSL, HSV color code generation, Color picker, Preset color options

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads (Monthly) | $1.99 | per month |


## Frequently asked questions

### Is Zinier free?

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

### Is Dev Calc free?

Dev Calc is free to download, with in-app purchases available.

### Which has better reviews, Zinier or Dev Calc?

Zinier is rated higher. Zinier averages 2.7 out of 5 from 22 ratings, while Dev Calc averages 2.0 from 2 ratings.

### Do Zinier or Dev Calc have ads?

Dev Calc shows ads; Zinier does not.

### Which is updated more often, Zinier or Dev Calc?

Zinier ships an update every 2 months, and Dev Calc every 2 months. Most recently, Zinier was updated on September 30, 2026 and Dev Calc on October 7, 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.*