Comparison

ALLiON vs Hardkorr

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

Head to head

Bluetooth Connect

About

ALLiON

Features

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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.

About

Hardkorr

Features

Read full description

This free app allows you to view detailed diagnostic information for your Hardkorr Bluetooth-enabled deep cycle batteries, chargers and regulators. You can access a range of useful information including: - State of charge - Nominal voltage and capacity - Live current draw and battery voltage - Status (standby, discharging, charging) - Time to empty / Time to full - Warnings and errors (short circuit, over- and under-temp, over- and under-voltage, over-discharge, over-charge) - Total charge cycles - Temperature - Detailed cell information Available on Apple CarPlay Supported products include: HKPBATL135B (135Ah Lithium Deep Cycle Battery) HKPBATL135BH (135Ah Lithium Deep Cycle Battery with Heat Film) HKPBATL240B (240Ah Lithium Deep Cycle Battery) HKPBATL240BH (240Ah Lithium Deep Cycle Battery with Heat Film) HKPBATLSL210 (210Ah Slimline Lithium Deep Cycle Battery) HKPBATLSL105 (105Ah Slimline Lithium Deep Cycle Battery) HKPBATL100BS (100Ah Deep Cycle Battery Black Series) HKPBATL150BS (150Ah Deep Cycle Battery Black Series) HKPBATL314BS (314Ah Deep Cycle Battery Black Series) HKPDCDC25BT (25A Bluetooth DC-DC Charger w/MPPT Solar) HKPDCDC40BT (40A Bluetooth DC-DC Charger w/MPPT Solar) HKPSOLR40A (40A 12/24V Solar MPPT Regulator) HKPSOLR60A (60A 12/24V Solar MPPT Regulator)

Screenshots

ALLiON4 screens

Hardkorr4 screens

Verdict

The call

The clearest difference is update cadence: Hardkorr at fortnightly against ALLiON's every 5 months. ALLiON's advantage is iOS requirement (13.0 vs 17.6). 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

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

ALLiON ships an update every 5 months, Hardkorr fortnightly. The most recent releases landed on October 25, 2026 and October 23, 2026 respectively.

Scorecard2 real differences · 4 level

ALLiON versus Hardkorr: the parameters behind the verdict, then further details
Parameter	ALLiON	Hardkorr
Price	Free	Free
Update frequency	Every 5 months	Fortnightly — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPod — better	iPhone
Requires iOS	13.0 — better	17.6
Further details — not scored
Size	10 MB	7 MB
Age rating	4+	4+
Developer	R&J Batteries PTY LTD	Hard Korr Pty Ltd

In-app purchases

None

ALLiON

No in-app purchases

None

Hardkorr

No in-app purchases

Questions

Is ALLiON free?

ALLiON is free to download, with no in-app purchases.

Is Hardkorr free?

Hardkorr is free to download, with no in-app purchases.

Do ALLiON or Hardkorr have ads?

Neither ALLiON nor Hardkorr shows ads.

Which is updated more often, ALLiON or Hardkorr?

ALLiON ships an update every 5 months, and Hardkorr fortnightly. Most recently, ALLiON was updated on October 25, 2026 and Hardkorr on October 23, 2026.