# Astable vs Base to Base Converter

The clearest difference is price: Base to Base Converter at Free against Astable's $4.99. Astable's advantage is update cadence (every 2 weeks vs every 5 weeks) and iOS requirement (12.0 vs 15.0). On review sentiment, ads, in-app purchases and device support there is nothing between them.

Base to Base Converter is free to download; Astable costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Astable ships an update every 2 weeks, Base to Base Converter every 5 weeks. The most recent releases landed on July 8, 2026 and June 23, 2026 respectively.

## The numbers

| Metric | Astable | Base to Base Converter |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 5 weeks |
| Monetization | Paid | **Free** |
| Size | 35 MB | 3 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [家豪 鲁](https://appshunter.io/developer/1665801193) | [Yuri Morozov](https://appshunter.io/developer/1582368813) |

## What reviewers say

### Astable

[App page](https://appshunter.io/ios/app/astable-structural-mechanics/id1665840344)

This application provides a powerful structural mechanics solver with a graphic editor, code editor, and workspace. It allows for detailed mechanics parameter settings and offers a rich theme color scheme, making it ideal for large screen devices.

**Highlights:** Graphic editor, Code editor, Workspace, Mechanics parameter settings, Rich theme color scheme, Large screen device optimized

**In-app purchases:** none


### Base to Base Converter

[App page](https://appshunter.io/ios/app/base-to-base-converter/id6670618030)

This app converts integer and fractional numbers between bases 2 and 16, explaining each step of the conversion process. It offers direct conversions between specific bases and prioritizes minimizing numerical error for fractions.

**Highlights:** Converts between bases 2-16, Explains conversion steps, Handles integers and fractions, Minimizes numerical error, Direct base conversions

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Astable free?

Astable costs $4.99, with no in-app purchases.

### Is Base to Base Converter free?

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

### Do Astable or Base to Base Converter have ads?

Neither Astable nor Base to Base Converter shows ads.

### Which is updated more often, Astable or Base to Base Converter?

Astable ships an update every 2 weeks, and Base to Base Converter every 5 weeks. Most recently, Astable was updated on July 8, 2026 and Base to Base Converter on June 23, 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.*