Comparison

iSlipstick vs WE Catalog

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

iSlipstick

This app provides a suite of essential electronic formula calculators and unit converters. It simplifies complex calculations for Ohm's law, LC circuits, impedance, and more, with a user-friendly interface for quick input and reordering of frequently used tools.

Highlights
  • Ohm's law calculator
  • Op-Amp gain calculator
  • LC circuit resonance calculator
  • RLC circuit impedance calculator
  • dBm to voltage/power converter
  • Resistor calculator
  • Unit converters (metric/imperial)
Features
Read full description

iSlipstick is a collection of commonly used electronic formula calculators and value converters. Included: Ohm's law calculator Op-Amp gain calculator LC circuit resonate frequency calculator Impedance and phase calculator for both series and parallel RLC circuits Parallel resistance calculator for up to six resistors dBm to voltage and power calculator for 50, 75 and 600 ohm loads Convert dBV to volts, dBW to watts and dBuV to microvolts with the dB converter. This converter will also convert the respective value to dB Resistor Calculator for 4 or 5 band resistors and SMD types Time Constant calculator for R - C and R - L networks. Length, Area, Volume, Capacity and Weight converters to go to and from metric and imperial units and within the same standard. Voltage Converter RMS to Peak and Peak-to-Peak and vice-versa. Features: iSlipstick's unique keyboard makes it easy to enter values without having to jump from one keyboard mode to another Numeric input can be American or European standard Re-orderable tables allow you to put the most frequently used functions where you will find them quickly iSlipstick has been tested on iOS 12.0 thru iOS 15.1

About

WE Catalog

This app helps users select electronic components for their projects. It offers a QR-code scanner for paper catalogs and provides access to a wide range of components like ferrites, inductors, and capacitors.

Highlights
  • Component selection tool
  • QR-code scanner
  • Ferrite selection
  • Inductor selection
  • Capacitor selection
  • Resistor selection
  • LED selection
Features
Read full description

Thanks for using the WE Catalogue app by Würth Elektronik eiSos. With this app you have another tool in addition to the website, www.we-online.com and our online platform REDEXPERT www.we-online.com/redexpert. Here you can select the right component for your project. By using the QR-Code scanner, it is the perfect companion four our paper catalogue. With this app, you will be able to selecta suitable ferrite, inductor, overvoltage protection, capacitor, resistor, quartz, oscillator, wireless power coils, power modules, LEDs, Ethernet and LAN transformers. About Würth Elektronik eiSos GmbH & Co. KG Würth Elektronik eiSos GmbH & Co. KG is a manufacturer of electronic and electromechanical components for the electronics industry. Production sites in Europe, Asia and North America supply a growing number of customers worldwide. The product program encompasses EMC components, inductors, transformers, HF components, varistors, resisitors, capacitors, quartz, oscillators, power modules, LEDs, wireless power, connectors, power supply elements, switches, connection technology, fuse holders, wireless connectivity and sensors. Würth Elektronik eiSos GmbH & Co. KG together with its specialized affiliated companies form the Würth Elektronik eiSos Group. About the Würth Elektronik eiSos Group Würth Elektronik eiSos GmbH & Co. KG (Focus: standard components), Würth Elektronik iBE GmbH (Focus: customized passive components for the automotive industry), Wurth Electronics Midcom Inc. (Focus: transformers and custom magnetics), Würth Elektronik Stelvio Kontek S.p.A. (Focus: customized plug connectors) and IQD Frequency Products Ltd (Focus: frequency-producing devices) form the Würth Elektronik eiSos Group. The former subsidiary AMBER wireless GmbH with a focus on solutions for wireless data transmission became the Wireless Connectivity and Sensors division of Würth Elektronik eiSos GmbH & Co. KG in 2018. The group of companies with 6,700 employees generated sales of approx. € 653 million in 2017. The Würth Elektronik eiSos Group is one of the biggest European manufacturers of passive components and operates in 50 countries. Through its technology partnership with the Audi Sport ABT Schaeffler Formula E Team and its support for the Formula E racing series, the Group demonstrates its innovative strength in eMobility (www.we-speed-up-the-future.com). Other global growth markets, such as Energy Harvesting, Internet of Things and Wireless Communication, are addressed with innovative products. The Würth Elektronik eiSos Group is part of the Würth Group, the world market leader for assembly and fastening technology.

Screenshots

iSlipstick4 screens
WE Catalog4 screens

Verdict

The call

The clearest difference is update cadence: iSlipstick at every 3 months against WE Catalog's every 9 months. iSlipstick also leads on ratings volume (3 vs 1) and iOS requirement (12.0 vs 17.6). WE Catalog's advantage is review sentiment (100% vs 90%). On price, rating, ads 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for iSlipstick against 5.0 for WE Catalog. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews are what separate them: 90% of iSlipstick's written reviews are positive against 100% of WE Catalog's.

UpkeepUpdate frequency

iSlipstick ships an update every 3 months, WE Catalog every 9 months. The most recent releases landed on August 12, 2026 and June 4, 2026 respectively.

Scorecard4 real differences · 6 level
iSlipstick versus WE Catalog: the parameters behind the verdict, then further details
ParameteriSlipstickWE Catalog
PriceFreeFree
Rating5.0 (3 ratings)5.0 (1 ratings)
Positive reviews90.0% of reviews100.0% of reviews — better
Number of ratings3 — better1
Update frequencyEvery 3 months — betterEvery 9 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 — better17.6
Further details — not scored
Size36 MB53 MB
Age rating4+4+
DeveloperSam VirgilloWuerth Elektronik eiSos GmbH & Co. KG

Customer experience

iSlipstick

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews10 reviews
Positive90.0%
Neutral10.0%
Negative0.0%

WE Catalog

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

iSlipstick

No in-app purchases

None

WE Catalog

No in-app purchases

Questions

Is iSlipstick free?
iSlipstick is free to download, with no in-app purchases.
Is WE Catalog free?
WE Catalog is free to download, with no in-app purchases.
Which has better reviews, iSlipstick or WE Catalog?
iSlipstick and WE Catalog are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.
Do iSlipstick or WE Catalog have ads?
Neither iSlipstick nor WE Catalog shows ads.
Which is updated more often, iSlipstick or WE Catalog?
iSlipstick ships an update every 3 months, and WE Catalog every 9 months. Most recently, iSlipstick was updated on August 12, 2026 and WE Catalog on June 4, 2026.

Other comparisons