# Catalogue vs TDK

The clearest difference is update cadence: Catalogue at every 3 weeks against TDK's every 2 months. On price, ads, in-app purchases and monetization model there is nothing between them.

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

Catalogue ships an update every 3 weeks, TDK every 2 months. The most recent releases landed on September 16, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Catalogue | TDK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/tdk-lambda/id1487966383/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 5 MB | 14 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alteru Inc.](https://appshunter.io/developer/434747758) | [TDK-Lambda Americas Inc.](https://appshunter.io/developer/1487966382) |

## What reviewers say

### Catalogue

[App page](https://appshunter.io/ios/app/catalogue/id434748914)

This app allows customers to easily access product catalogs shared by businesses. Customers can download catalogs via a provided link or by entering a catalog ID and passcode. It offers a simple and secure way for consumers to view product information.

**Highlights:** Download catalogs via link, Access catalogs with ID and passcode, Secure catalog access, Effortless catalog distribution for customers, Free for customers to download

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### TDK

[App page](https://appshunter.io/ios/app/tdk-lambda/id1487966383)

Access TDK-Lambda's complete product catalog offline. Browse by category, industry, or search for specific part numbers. This guide puts essential product information at your fingertips.

**Highlights:** Offline product catalog access, Browse by category, Browse by industry, Search by part number, Comprehensive product list

**In-app purchases:** none


## Frequently asked questions

### Is Catalogue free?

Catalogue is free to download, with no in-app purchases.

### Is TDK free?

TDK is free to download, with no in-app purchases.

### Do Catalogue or TDK have ads?

Neither Catalogue nor TDK shows ads.

### Which is updated more often, Catalogue or TDK?

Catalogue ships an update every 3 weeks, and TDK every 2 months. Most recently, Catalogue was updated on September 16, 2026 and TDK on June 4, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*