ETS RF Quick Reference vs KBI CatApp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ETS RF Quick Reference
Read full descriptionHide full description
The ETS RF Quick Reference contains handy offline references for calculations, conversions, searching, and in pocket guides for various topics in the palm of your hand. Topics currently included are Radio Frequency (RF), Wi-Fi, and Linux Networking Commands. Included Converters, Calculators, and Databases in V1.0: dBm to Watts Converter Antenna Length Calculator PSK Calculator OUI Lookup Port Lookup
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)
Read full descriptionHide full description
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
ETS RF Quick Reference and KBI CatApp are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
Both ship on a similar rhythm, roughly every 7 months. The most recent releases landed on September 9, 2026 and June 1, 2026 respectively.
| Parameter | ETS RF Quick Reference | KBI CatApp |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 7 months | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 | 14.0 |
| Further details — not scored | ||
| Size | 10 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Emerging Technology Support, LLC | Kinsbursky Bros. Supply, Inc. |
In-app purchases
ETS RF Quick Reference
No in-app purchases
KBI CatApp
No in-app purchases
