E vs KfB Install
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
E
This app connects staff to their E-TS database for managing schedules, job details, and client information. It allows for on-the-go creation of quotes and invoices, inventory queries, and GPS tracking of staff locations.
- View and manage schedules and assigned tasks
- Access job details, client contacts, and log work times
- Create and email quotes and invoices
- Query inventory and client databases
- Record stock waste, transfers, and job line items
- Collect client signatures and save images
- Real-time GPS staff location tracking
Read full descriptionHide full description
The official E-TS Companion App keeps your staff connected to your E-TS database on-the-go. SCHEDULE See your Schedule. Review your assigned tasks. JOBS See your Job information and Job notes. Quick access to client contact information. Log your start and finish times. Record Stock Waste and Transfers. Edit your Job Lines Items. Save and review images to DocStore. Collect client satisfaction signatures. QUOTES/INVIOCES Create Quotes and Invoices on the fly. Either save as a draft, or release and email to the client. Utilize your Templates. Record Payments taken against Invoices. DATABASE QUERIES Query your Inventory and Client database. GPS TRACKING Staff location GPS tracking. The E-TS database can be configured with a number of Tracking schemes and Staff Locations can be viewed by your E-TS dispatcher. **To use this app, you must have been granted access to a private E-TS Server. If you or your company are interested in purchasing E-TS software, please contact us at enquiries@whsoftware.com.
KfB Install
This app enables technicians to install and maintain smart access devices for residential buildings. It facilitates controlled entry for delivery drivers, streamlining package delivery and reducing building staff involvement. The system ensures secure, one-time access after multi-step driver authentication.
- Device installation and maintenance
- Controlled access for delivery drivers
- Integration with existing access systems
- Multi-step driver authentication
- Package delivery facilitation
Read full descriptionHide full description
This mobile application is specifically designated for Key for Business technicians to install and maintain Key for Business devices. Key for Business allows residential building owners and managers to give controlled access to Amazon delivery drivers to drop off packages to their residents without the need for help from building staff. This aims to reduce the time spent by delivery drivers waiting for access into the building and eliminates the need for building staff to manually give access to drivers each time deliveries are made. Once an agreement with the property owner or manager is complete, Amazon installs a device that integrates seamlessly with your building’s existing access control system to enable Key for Business. A multi-step authentication process then confirms each delivery driver’s identity before permitting one-time access to your property to deliver your resident’s packages. Learn more: www.amazon.com/keyforbusiness
Screenshots
Verdict
The clearest difference is update cadence: E at every 3 weeks against KfB Install's every 2 months. E also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price, review sentiment, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
E ships an update every 3 weeks, KfB Install every 2 months. The most recent releases landed on September 18, 2026 and September 23, 2026 respectively.
| Parameter | E | KfB Install |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (14 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | — | 14 — better |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 36 MB | 108 MB |
| Age rating | 4+ | 4+ |
| Developer | WHSoftware | AMZN Mobile LLC |
Customer experience
E
KfB Install
In-app purchases
E
No in-app purchases
KfB Install
No in-app purchases









