Comparison

E vs KfB Install

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read 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.

About

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.

Highlights
  • Device installation and maintenance
  • Controlled access for delivery drivers
  • Integration with existing access systems
  • Multi-step driver authentication
  • Package delivery facilitation
Features
Read 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

E4 screens
KfB Install4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
E versus KfB Install: the parameters behind the verdict, then further details
ParameterEKfB Install
PriceFreeFree
Rating—4.7 (14 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings—14 — better
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better16.0
Further details — not scored
Size36 MB108 MB
Age rating4+4+
DeveloperWHSoftwareAMZN Mobile LLC

Customer experience

E

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

KfB Install

All ratings14 ratings
Positive92.9%
Neutral0.0%
Negative7.1%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

E

No in-app purchases

None

KfB Install

No in-app purchases

Questions

Is E free?
E is free to download, with no in-app purchases.
Is KfB Install free?
KfB Install is free to download, with no in-app purchases.
Do E or KfB Install have ads?
Neither E nor KfB Install shows ads.
Which is updated more often, E or KfB Install?
E ships an update every 3 weeks, and KfB Install every 2 months. Most recently, E was updated on September 18, 2026 and KfB Install on September 23, 2026.

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