TdSE vs KBI CatApp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TdSE
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The TdSE app lets you browse times, locations, and descriptions for sessions, and special events and more information about the symposium.
KBI CatApp
Access a comprehensive database of catalytic converter prices, updated daily based on real-time market data and in-house laboratory analysis. Find accurate valuations for your converters.
- Extensive catalytic converter price list
- Daily price updates
- In-house laboratory analysis
- XRF and ICP instrumentation data
- Market-based pricing (platinum, palladium, rhodium)
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With over 10,000 catalytic converters sampled to date, the KBI Catapp has one of the the most accurate and comprehensive lists of converter pricing you'll find. Every price is based on analysis from our in-house laboratory using top of the line XRF and ICP instrumentation. Prices update daily and are based on current platinum, palladium, and rhodium markets.
Screenshots
Verdict
The clearest difference is update cadence: KBI CatApp at every 9 months against TdSE's every 24 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
TdSE ships an update every 24 months, KBI CatApp every 9 months. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.
| Parameter | TdSE | KBI CatApp |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 24 months | Every 9 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 16.4 |
| Further details — not scored | ||
| Size | 80 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | NC Lab | Kinsbursky Bros. Supply, Inc. |
In-app purchases
TdSE
No in-app purchases
KBI CatApp
No in-app purchases
