ALLiON vs Trailer Safety Control
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ALLiON
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R& J Batteries Smart Connect This app allows you to connect to all of your ALLiON Lithium Ion batteries. This application is only for R&J batteries. FEATURES * No need for a separate battery monitor…save hundreds of dollars! * Wirelessly connect to each battery from your phone. * Access each BMS independently with multiple batteries. * Track Cycle Life on each battery. * Displays State Of Charge (SOC) percentage with circle graphic. * Display voltage, charging or discharging current, and temperature. * Easy to read gauges. * Battery Events displayed in easy to understand text.
Trailer Safety Control
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Allows the trailer user to communicate directly with the Trailer Safety Controller product via Bluetooth. Information from the trailer can be retrieved including trailer odometer, system status and diagnostic functions for troubleshooting trailer technical issues. NOTE: To use this app your trailer must have the Bosch Trailer Safety Control product installed and the supported Bluetooth communications.
Screenshots
Verdict
The clearest difference is update cadence: ALLiON at every 5 months against Trailer Safety Control's every 18 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.
ALLiON ships an update every 5 months, Trailer Safety Control every 18 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.
| Parameter | ALLiON | Trailer Safety Control |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months — better | Every 18 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 10 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | R&J Batteries PTY LTD | ROBERT BOSCH (AUSTRALIA) PROPRIETARY LIMITED |
In-app purchases
ALLiON
No in-app purchases
Trailer Safety Control
No in-app purchases
