ENCOMPASS® ELD vs AP1 Calibration Tool
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ENCOMPASS® ELD
This app helps commercial drivers electronically capture hours-of-service data, replacing paper logs. It ensures compliance with ELD mandates and offers real-time alerts to prevent violations. Supports various vehicle classes and industry-specific rulesets.
- Mandate-compliant ELD
- Hours of service compliance alerts
- Support for various HOS rulesets
- Roadside inspection mode
- Electronic vehicle inspections (EDVIRs)
- Mobile messaging
- Team driving and exempt logging support
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The J. J. Keller® Encompass® ELD app is the industry’s most simple, flexible and affordable driver electronic log. Formerly known as KellerMobile, this patented ELD mandate-compliant solution is used by commercial motor vehicle drivers to electronically capture hours-of-service duty status information, replacing the driver’s paper log book. The app uses a driver-friendly interface to present hours-of-service data to drivers, helping them optimize their on-duty and driving hours and reduce the risk of violations. The solution works with class 1-8 vehicles and offers many industry and state-specific HOS rulesets, accommodating exempt, non-regulated, and team drivers. The Encompass® ELD app is compliant with ELD (Part 395 Subpart B and Part 395 Appendix) rules and is listed on the FMCSA ELD registry. The Encompass® ELD app is part of the J. J. Keller® Encompass® Fleet Management System, which uses the J. J. Keller® electronic logging device and the Encompass® back office portal. HOW DOES IT WORK: Hours-of-service and telematics data is captured via a hardline adapter from the engine’s diagnostic port into the ELD hardware. The hardware continuously records and stores engine data. Data is transmitted via Bluetooth from the hardware to the Encompass® ELD application on drivers’ iPhone® or iPad® devices. Hours-of-service data and alerts are presented to the drivers in real time using compliance rulesets determined by the company. Data from the iPhone® or iPad® device is transmitted via cellular connection to the Encompass® online back office portal for hours-of-service auditing, reporting and recordkeeping. APP FEATURES: MANDATE-COMPLIANT ELD – Solution is compliant with the final FMCSA mandate. Regulatory and technology updates are delivered over-the-air and require no hardware swap outs. HOS COMPLIANCE ALERTS - App continuously checks drivers’ hours against the current DOT hours-of-service rules and company rulesets, and presents alerts to drivers of impending violations. HOS RULE SETS – App supports state and industry rulesets, including US 60/70, US and Texas Oil Field, Canadian Cycle 1 & 2, US Construction, 100 & 150 Air-Mile Exempt, and more. ROADSIDE INSPECTION MODE – Supports ELD requirements for roadside inspection protocol, including mobile display and Telematics Data Transfer method. ELECTRONIC VEHICLE INSPECTIONS (EDVIRs) – Driver-friendly interface supports pre- and post-trip inspection process, customized criteria, and photo capture of defects. MOBILE MESSAGES – Allows for the quick and efficient exchange of information between the back office and drivers. ADDITIONAL FUNCTIONALITY - Supports team driving, hyrail, personal conveyance, exempt logging, border crossing, and more. FLEXIBILITY – App can be used with the J. J. Keller® Compliance Tablet™ or the driver’s own smart device. DOT DRIVER AND VEHICLE COMPLIANCE RECORDKEEPING – Includes Encompass back-office DOT driver and vehicle compliance recordkeeping features for driver qualification, alcohol and drug program management, hiring, and more. DEDICATED DRIVER SUPPORT – Drivers receive 24/7 technical support and Roadside Inspection assistance. A dedicated support team ensures quick resolution on technical issues. DEDICATED COMPANY SUPPORT – Users receive complimentary amenities, including DataQs Challenge Service; DOT Expert Help from our subject-matter experts; regulatory webcasts; an online support site with training videos, FAQs, user guides; and an online training library (Spring 2020). OPTIONAL ADD-ON SOLUTIONS – Options include Dash Cam Pro, performance management, and navigation. COMPLIANCE EXPERTISE - This patented technology was developed by the industry’s leader in regulatory compliance and driver logging since 1953 and is covered by U.S. patents and patents pending. See JJKeller.com/patents.
AP1 Calibration Tool
This tool helps installers adjust camera settings for fleet management solutions. It allows for downloading and uploading settings, rebooting the camera, resetting defaults, and calibrating the G-Sensor. Real-time images assist in optimizing camera angles for peak performance.
- Download settings and images
- Upload settings to camera
- Reboot camera
- Reset to default settings
- Initiate G-Sensor calibration
- Adjust camera angle with real-time images
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SmartWitness brings your fleet into the future with smartphone-based fleet management solutions. The AP1 Camera Calibration Tool allows installers to adjust camera settings with the convenience of an iPhone or iPad. Features: - Download settings and images from the camera to the app - Upload settings from the app to the camera - Reboot the camera - Set the camera to its default settings - Initiate G-Sensor calibration - Adjust the camera angle with real-time images for optimum performance
Screenshots
Verdict
The clearest difference is rating: AP1 Calibration Tool at 5.0 against ENCOMPASS® ELD's 4.0. AP1 Calibration Tool also leads on update cadence (every 2 weeks vs every 2 months) and iOS requirement (10.0 vs 13.0). ENCOMPASS® ELD's advantage is ratings volume (924 vs 2). On price, ads, in-app purchases and monetization model 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.
AP1 Calibration Tool holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: ENCOMPASS® ELD has 924 ratings behind it against 2, so its average is the more settled of the two.
ENCOMPASS® ELD ships an update every 2 months, AP1 Calibration Tool every 2 weeks. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.
| Parameter | ENCOMPASS® ELD | AP1 Calibration Tool |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (924 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 18.2% of reviews | — |
| Number of ratings | 924 — better | 2 |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 41 MB | 44 MB |
| Age rating | 17+ | 4+ |
| Developer | J. J. Keller & Associates, Inc. | SmartWitness USA, LLC |
Customer experience
ENCOMPASS® ELD
AP1 Calibration Tool
Bugs and requests
ENCOMPASS® ELD
Reported bugs
5 issues- Logs driver as driving when truck is stopped
- Fails to properly record breaks and rest periods
- Issues with app crashing and logging out
- Problems with app detecting movement and changing duty status
- Inability to properly certify logs
Requested features
4 requests- Dark mode option
- Ability to manage functions and settings
- Improved personal conveyance and yard move handling
- Ability to perform inspections on trucks/trailers not in the system
AP1 Calibration Tool
Not enough reviews yet to summarise bugs or requests.
In-app purchases
ENCOMPASS® ELD
No in-app purchases
AP1 Calibration Tool
No in-app purchases
Questions
Is ENCOMPASS® ELD free?
Is AP1 Calibration Tool free?
Which has better reviews, ENCOMPASS® ELD or AP1 Calibration Tool?
Do ENCOMPASS® ELD or AP1 Calibration Tool have ads?
Which is updated more often, ENCOMPASS® ELD or AP1 Calibration Tool?
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