Resistor Calc+ vs TMA sCity
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Resistor Calc+
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.
- 3, 4, 5, and 6 band resistor support
- Visual band color selection
- Displays resistance value and tolerance
- Aids in electronics configuration
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Resistor color code calculator helps determine the resistance value indicated by the colored band. You can use it for 3, 4, 5 and 6 band resistors. You can click the band in the color table to select a color for that band. The resistor visually shows your band color selection and displays the corresponding resistance value. It will help you configure your electronics. How to use the resistance color code calculator - Please select the number of band colors first. - Select the color of the band by clicking on the corresponding box in the color chart. - The corresponding resistance value and the tolerance of the resistance are displayed.
TMA sCity
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Smart urban management system. Manage urban areas remotely. Monitor the environment in your building, manage fire alarms and more.
Screenshots
Verdict
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.
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.
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.
| Parameter | Resistor Calc+ | TMA sCity |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 2 months | Every 10 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 78 MB |
| Age rating | 4+ | 4+ |
| Developer | EONSOFT | TMA Mobile Solutions (TMS) |
In-app purchases
Resistor Calc+
No in-app purchases
TMA sCity
No in-app purchases
Questions
Is Resistor Calc+ free?
Is TMA sCity free?
Do Resistor Calc+ or TMA sCity have ads?
Which is updated more often, Resistor Calc+ or TMA sCity?
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