# Developer Calc Hex Dec Oct Bin vs synchroCalc

The clearest difference is rating: synchroCalc at 5.0 against Developer Calc Hex Dec Oct Bin's 4.1. synchroCalc also leads on ads (none vs shown). Developer Calc Hex Dec Oct Bin's advantage is in-app purchases (none vs 1) and ratings volume (15 vs 3). On price, review sentiment, update cadence and device support there is nothing between them.

Both are free to download. synchroCalc sells 1 one-off in-app purchase. Developer Calc Hex Dec Oct Bin asks for nothing beyond the download.

synchroCalc holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Developer Calc Hex Dec Oct Bin has 15 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 76% of Developer Calc Hex Dec Oct Bin's written reviews are positive against 71% of synchroCalc's, so the app with the better star average is not the one people write more warmly about.

Developer Calc Hex Dec Oct Bin ships an update every 5 months, synchroCalc every 4 months. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Developer Calc Hex Dec Oct Bin | synchroCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (15 ratings)](https://appshunter.io/ios/app/developer-calc-hex-dec-oct-bin/id568750126/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/synchrocalc/id1073411743/reviews)** |
| Number of ratings | **15** | 3 |
| Positive reviews | **76.3% of reviews** | 70.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 4 months** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 4 MB | 27 MB |
| Requires iOS | 9.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [QQ TSUBASA](https://appshunter.io/developer/568750169) | [Akeome Studio](https://appshunter.io/developer/1044573722) |

## What reviewers say

### Developer Calc Hex Dec Oct Bin

[App page](https://appshunter.io/ios/app/developer-calc-hex-dec-oct-bin/id568750126)

This app converts numbers between binary, octal, decimal, and hexadecimal bases on a single screen. It also displays color hex codes and RGB values simultaneously. It's designed for developers needing quick base conversions and color code referencing.

**Highlights:** Binary, octal, decimal, hexadecimal conversion, Color hex code and RGB display, Large 19-digit decimal display, Conversion reset toggle, Maximum and minimum value display

**Features:** macOS Compatibility

**In-app purchases:** none


### synchroCalc

[App page](https://appshunter.io/ios/app/synchrocalc/id1073411743)

This utility converts numbers between binary, decimal, and hexadecimal formats. It offers adjustable bit sizes and supports various arithmetic and bitwise operations, ideal for developers and engineers.

**Highlights:** Binary, decimal, hexadecimal display, Adjustable bit sizes (64/32/16/8-bit), Signed/unsigned number switching, 12 arithmetic and bitwise operations, Copy/paste functionality, Supports iPhone, iPad, and iPod touch

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads & display expression | $1.99 | one-time |


## Frequently asked questions

### Is Developer Calc Hex Dec Oct Bin free?

Developer Calc Hex Dec Oct Bin is free to download, with no in-app purchases.

### Is synchroCalc free?

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

### Which has better reviews, Developer Calc Hex Dec Oct Bin or synchroCalc?

synchroCalc is rated higher. Developer Calc Hex Dec Oct Bin averages 4.1 out of 5 from 15 ratings, while synchroCalc averages 5.0 from 3 ratings.

### Do Developer Calc Hex Dec Oct Bin or synchroCalc have ads?

Developer Calc Hex Dec Oct Bin shows ads; synchroCalc does not.

### Which is updated more often, Developer Calc Hex Dec Oct Bin or synchroCalc?

Developer Calc Hex Dec Oct Bin ships an update every 5 months, and synchroCalc every 4 months. Most recently, Developer Calc Hex Dec Oct Bin was updated on October 14, 2026 and synchroCalc 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.*