Mouser vs Catalopedia
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mouser
Easily find and browse the latest semiconductors and electronic components for your designs. Search by category, date, or manufacturer, and view real-time stock availability. Build shopping baskets, manage projects, and access your account for order history and status.
- Browse new products by date, category, manufacturer
- Search and filter electronic components
- View real-time stock availability and pricing
- Build shopping baskets and manage projects
- Access My Mouser account for order history
- Barcode scanner for quick product lookup
- Bookmark products for quick access
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The Mouser app allows you to easily access the newest semiconductors and electronic components for your designs. Easily browse the newest products by date, category or manufacturer. Find products and view stock availability through a user-friendly search or built-in barcode scanner with the ability to build a shopping basket or project to checkout online. Use the app to access your My Mouser account to view order history, order details, and order status information. You can also bookmark products or add them to projects for quick access or to review offline. Always stay connected to Mouser and the newest products for your latest designs. Features: - Access your My Mouser account to view order history, details, and status - Find and view new products by category, date and manufacturer - Search for products by filtering and sorting results - Build a shopping basket by adding products from across the application - The product search tool allows you to refine your search and apply attributes to find components easily - Keep track of your projects by building groups of parts into separate lists - Scan Mouser's barcode to quickly find your product - Bookmark products for quick access - Store products and parts to view later in projects and bookmarks - View full product specification and up-to-date pricing - Find real-time stock availability - Conversion Calculators
Catalopedia
This app serves as a comprehensive encyclopedia for catalytic converters, offering free, unlimited searches. It provides transparent pricing, accurate metal and FX updates, and detailed 3D rendered images with exact measurements. The app also features an AI-powered identification tool and welcomes collaboration for expanding its product catalog.
- Unlimited free catalytic converter searches
- Transparent pricing with customizable rates
- Hourly updated metal and FX prices
- 3D rendered images with exact measurements
- AI-powered converter identification (Beta)
- Country-specific product differentiation
- Collaborative expansion of product catalog
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Transparent, Convenient, Collaborative Catalytic Converter Recycling App. Catalopedia is a catalytic converter encyclopedia with unlimited free searches to find the exact converter you are looking for. We offer a transparent pricing system, where you can choose your own return rates and other settings and customise the app to your personal requirements. We provide very accurate catalytic converter prices, our metals and FX prices are updated hourly. Our images are 3D rendered and all pictures are digital with exact measurements. Our sampling and analysis systems are refined, with processes to eliminate machine, human error and we do 6 analyses at minimum based on tolerance and deviation criterias to determine the final analysis before publishing on the app. Therefore, the analysis which can be purchased is extremely highly reliable. We differentiate the products by country, as you will realise converters with identical markings have differing analyses, therefore different prices, if they originate from different countries, due to their emission standards. We also have other means to filter the converters to dwindle down the searches. Test our Beta Identify feature. We render several thousand images of different backgrounds, simulating rust, dents etc from our 3D images. Then we feed them to our own AI neural network engine. This engine is able to learn and guess what you are looking for by shortlisting it. It however only works for models in our catalogue and we are training it every day, as we add products. So in the testing phase, it's completely free. We have a highly collaborative mindset. We have a good application, but our products are very limited to a few countries. If your country’s products are not covered in the application, we would be happy to discuss with you and obtain samples to include them in the app. We are also looking for franchise partners who want to be part of our application. We are more than happy to collaborate and share the benefits.
Screenshots
Verdict
The clearest difference is rating: Mouser at 2.4 against Catalopedia's 1.0. Mouser also leads on in-app purchases (none vs 5) and review sentiment (18% vs 0%). Catalopedia's advantage is update cadence (every 3 weeks vs every 6 weeks) and iOS requirement (13.0 vs 15.6). On price, ads 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. Catalopedia sells 5 one-off in-app purchases. Mouser asks for nothing beyond the download.
Mouser holds the better App Store score, 2.4 against 1.0. That said, the two scores are not equally well evidenced: Mouser has 34 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 18% of Mouser's written reviews are positive against 0% of Catalopedia's.
Mouser ships an update every 6 weeks, Catalopedia every 3 weeks. The most recent releases landed on September 18, 2026 and June 2, 2026 respectively.
| Parameter | Mouser | Catalopedia |
|---|---|---|
| Price | Free | Free |
| Rating | 2.4 (34 ratings) — better | 1.0 (2 ratings) |
| Positive reviews | 17.9% of reviews — better | 0.0% of reviews |
| Number of ratings | 34 — better | 2 |
| Update frequency | Every 6 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 97 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | Mouser Electronics | Skrya Pte Ltd |
Customer experience
Mouser
Catalopedia
In-app purchases
Mouser
No in-app purchases
Catalopedia
- 30 Credits$29.99
- 66 Credits$59.99
- 144 Credits$99.99
Show 2 moreShow fewer
- 225 Credits$179.99
- 360 Credits$229.99





