Resistor Calc+ vs Frese T650
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.
Frese T650
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Smart device for balancing of heating and cooling hydronic systems. Data of balancing valves of heading European producers included. Successfully can be used for accurate measuring of very small differential or gauge pressures.
Screenshots
Verdict
The clearest difference is ads: Frese T650 at none against Resistor Calc+'s shown. Resistor Calc+'s advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, update cadence and in-app purchases 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, Frese T650 every 6 weeks. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.
| Parameter | Resistor Calc+ | Frese T650 |
|---|---|---|
| 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 6 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 6 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | EONSOFT | SV Technics |
In-app purchases
Resistor Calc+
No in-app purchases
Frese T650
No in-app purchases
Questions
Is Resistor Calc+ free?
Is Frese T650 free?
Do Resistor Calc+ or Frese T650 have ads?
Which is updated more often, Resistor Calc+ or Frese T650?
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