---
title: "Perfboard - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "A utility and reference for the electronics hobbyist.  Contains: • resistor color band utility • resistor series calculator • resistor parallel calculator • voltage divider • capacitor code tool • cap"
---

# Perfboard — United States

![Perfboard App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple69/v4/3c/16/12/3c1612c4-f62b-648e-80ee-733282d2e0e5/mzl.wyujpgou.png/400x400bb.png)

**Developer:** [Soft Dorothy](https://apptail.io/developer/soft-dorothy-Xpzb)
**Category:** Reference
**Rating:** 5.0/5 (6 ratings)
**Price:** Free
**Bundle ID:** com.softdorothy.perfboard
**Store:** Apple App Store
**Country:** United States
**Version:** 2.0.4 (released 2015-11-25)
**Original Release:** 2011-09-23

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id465951871)
**AppTail Page:** [https://apptail.io/app/perfboard-kFJd/united-states](https://apptail.io/app/perfboard-kFJd/united-states)

## Perfboard Description
A utility and reference for the electronics hobbyist.

Contains:
• resistor color band utility
• resistor series calculator
• resistor parallel calculator
• voltage divider
• capacitor code tool
• capacitor tolerance reference
• capacitor series calculator
• capacitor parallel calculator
• L.E.D. voltage drop reference
• L.E.D. limiting resistor calculator
• Ohm's law calculator (with unique "slide rule mode")
• ASCII table.

Retina display and iPhone 5 & 6 support. A beautiful user interface.

## Perfboard Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple1/v4/15/15/2b/15152b20-2775-3235-ce75-0f2dd1e165dc/mzl.mkjfnglg.png/640x920.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple7/v4/bf/ac/24/bfac2412-6900-5c0f-39fe-0c2bc485125e/mzl.lescniow.png/640x920.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple5/v4/76/a2/bc/76a2bcf0-c05b-3059-6b0d-458889635b77/mzl.fhtjncyq.png/640x920.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple7/v4/26/ff/02/26ff020a-4dab-8fff-4bed-724b2eedab7b/mzl.uxyizsmo.png/640x920.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple1/v4/86/c4/af/86c4afb5-2477-adf8-a0a6-057c64cec7a3/pr_source.png/640x920.png)

## Perfboard Rating Breakdown in United States
- 5 stars: 6 (100%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)

## Perfboard Reviews in United States

### ***** "Abandoned?"
Been trying ti buy the paid version for a long time.  Apple wont let me do it.  I believe this app has been abandoned by its dev. Too bad, looks like its  the best thing out there
-- Maflaya2, 2023-02-26

### ***** "Great! Except for 1 Ohm"
Very handy... Worth the small price to unlock other features. NOTE: There is one bug, the app reports a 1 ohm resistor as a 10k resistor... Only issue I have found..
-- liddown, 2021-01-16

### ***** "Very Nice"
This is a very cool app, I’ve purchased the Pro Version and I recommend you to do the same, you’ll get more useful tools that I am sure you’ll enjoy 😊 
Keep up the good work!!
@Ed Rivera
-- BucknameF14, 2018-07-23

### ***** "Wow this is great!"
Cannot saw enough. As a hobby electronics builder I can not believe how well this app works. I use the LED and resistor function the most.
-- Lost Okie, 2018-01-29

### ***** "Excellent app and creator (vaper friendly)"
I can't speak enough how well the app works and looks. Puts all others in the realm to shame. Another plus is now with a watts counter, coil builders can now build within safe limits. A must have for any vaper out there. This came as a suggestion to the creator who is more than willing to hear you out. Simply amazing! Highly recommended.
-- Wtfcmon, 2015-06-06

### ***** "Simple and useful"
Simplicity
-- Promma, 2013-10-29

### ***** "Nice app."
Nice and easy interface. Handy tool.
-- Santosh D, 2013-01-24

### ***** "Great"
Love the small file size. And it's free. A no-brainier for anyone playing with circuits.
-- Derisan, 2012-10-29

### ***** "Super helpful"
Foolproof
-- MrGrieves, 2012-10-13

### ***** "Very nice"
Useful, straightforward and free.
-- Balorn, 2012-08-29

[View all Perfboard reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)

## Perfboard In-App Purchases
| Item | Price |
|------|-------|
| Perfboard Professional Suite | $1.99 |



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## Perfboard Available In
- [United States](https://apptail.io/app/perfboard-kFJd/united-states)
- [United Kingdom](https://apptail.io/app/perfboard-kFJd/united-kingdom)
- [Philippines](https://apptail.io/app/perfboard-kFJd/philippines)
- [Russia](https://apptail.io/app/perfboard-kFJd/russia)
- [Malaysia](https://apptail.io/app/perfboard-kFJd/malaysia)
- [Singapore](https://apptail.io/app/perfboard-kFJd/singapore)
- [China](https://apptail.io/app/perfboard-kFJd/china)
- [Australia](https://apptail.io/app/perfboard-kFJd/australia)
- [Taiwan](https://apptail.io/app/perfboard-kFJd/taiwan)
- [Ukraine](https://apptail.io/app/perfboard-kFJd/ukraine)
- [Vietnam](https://apptail.io/app/perfboard-kFJd/vietnam)
- [Canada](https://apptail.io/app/perfboard-kFJd/canada)
- [Switzerland](https://apptail.io/app/perfboard-kFJd/switzerland)
- [Brazil](https://apptail.io/app/perfboard-kFJd/brazil)
- [Indonesia](https://apptail.io/app/perfboard-kFJd/indonesia)
- [Israel](https://apptail.io/app/perfboard-kFJd/israel)
- [India](https://apptail.io/app/perfboard-kFJd/india)
- [Iceland](https://apptail.io/app/perfboard-kFJd/iceland)
- [Japan](https://apptail.io/app/perfboard-kFJd/japan)
- [South Korea](https://apptail.io/app/perfboard-kFJd/south-korea)
- [Kuwait](https://apptail.io/app/perfboard-kFJd/kuwait)
- [Kazakhstan](https://apptail.io/app/perfboard-kFJd/kazakhstan)
- [Lebanon](https://apptail.io/app/perfboard-kFJd/lebanon)
- [Lithuania](https://apptail.io/app/perfboard-kFJd/lithuania)
- [North Macedonia](https://apptail.io/app/perfboard-kFJd/north-macedonia)
- [Malta](https://apptail.io/app/perfboard-kFJd/malta)
- [Mexico](https://apptail.io/app/perfboard-kFJd/mexico)
- [Nigeria](https://apptail.io/app/perfboard-kFJd/nigeria)
- [Norway](https://apptail.io/app/perfboard-kFJd/norway)
- [New Zealand](https://apptail.io/app/perfboard-kFJd/new-zealand)
- [Peru](https://apptail.io/app/perfboard-kFJd/peru)
- [Pakistan](https://apptail.io/app/perfboard-kFJd/pakistan)
- [Poland](https://apptail.io/app/perfboard-kFJd/poland)
- [Saudi Arabia](https://apptail.io/app/perfboard-kFJd/saudi-arabia)
- [Thailand](https://apptail.io/app/perfboard-kFJd/thailand)
- [Tunisia](https://apptail.io/app/perfboard-kFJd/tunisia)
- [Türkiye](https://apptail.io/app/perfboard-kFJd/turkey)
- [United Arab Emirates](https://apptail.io/app/perfboard-kFJd/united-arab-emirates)
- [South Africa](https://apptail.io/app/perfboard-kFJd/south-africa)
- [Argentina](https://apptail.io/app/perfboard-kFJd/argentina)
- [Azerbaijan](https://apptail.io/app/perfboard-kFJd/azerbaijan)
- [Belgium](https://apptail.io/app/perfboard-kFJd/belgium)
- [Belarus](https://apptail.io/app/perfboard-kFJd/belarus)
- [Chile](https://apptail.io/app/perfboard-kFJd/chile)
- [Colombia](https://apptail.io/app/perfboard-kFJd/colombia)
- [Denmark](https://apptail.io/app/perfboard-kFJd/denmark)
- [Dominican Republic](https://apptail.io/app/perfboard-kFJd/dominican-republic)
- [Algeria](https://apptail.io/app/perfboard-kFJd/algeria)
- [Ecuador](https://apptail.io/app/perfboard-kFJd/ecuador)
- [Egypt](https://apptail.io/app/perfboard-kFJd/egypt)
- [Hong Kong SAR China](https://apptail.io/app/perfboard-kFJd/hong-kong)
- [Hungary](https://apptail.io/app/perfboard-kFJd/hungary)

---

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