# Resistor Calc+ vs TMA sCity

The clearest difference is ads: TMA sCity at none against Resistor Calc+'s shown. TMA sCity also leads on update cadence (every 10 days vs every 2 months) and iOS requirement (12.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Resistor Calc+ ships an update every 2 months, TMA sCity every 10 days. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Resistor Calc+ | TMA sCity |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/resistor-calc-plus/id1441211200/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | Ad-supported | — |
| Size | 6 MB | 78 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EONSOFT](https://appshunter.io/developer/899851112) | [TMA Mobile Solutions (TMS)](https://appshunter.io/developer/397093678) |

## What reviewers say

### Resistor Calc+

[App page](https://appshunter.io/ios/app/resistor-calc-plus/id1441211200)

Easily determine resistance values from colored bands on resistors. Supports 3 to 6 band configurations with a visual representation of your selections. Ideal for electronics enthusiasts and hobbyists.

**Highlights:** 3, 4, 5, and 6 band resistor support, Visual band color selection, Displays resistance value and tolerance, Aids in electronics configuration

**Features:** Vision Pro support

**In-app purchases:** none


### TMA sCity

[App page](https://appshunter.io/ios/app/tma-scity/id6720729332)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Resistor Calc+ free?

Resistor Calc+ is free to download, with no in-app purchases.

### Is TMA sCity free?

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

### Do Resistor Calc+ or TMA sCity have ads?

Resistor Calc+ shows ads; TMA sCity does not.

### Which is updated more often, Resistor Calc+ or TMA sCity?

Resistor Calc+ ships an update every 2 months, and TMA sCity every 10 days. Most recently, Resistor Calc+ was updated on October 29, 2026 and TMA sCity on October 25, 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.*