LIONTRON Multi vs Simple AVR
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LIONTRON Multi
Monitor up to seven LIONTRON LiFePO4 batteries in real-time via Bluetooth. View voltage, current, power, capacity, and charging cycles. Receive alerts for temperature, cell imbalance, and charging errors.
- Real-time battery monitoring
- Bluetooth connectivity
- Voltage, current, and power display
- Capacity and charging cycle tracking
- Error message alerts
- Charging/discharging status
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Use the app to record up to seven of your LIONTRON LiFePO4 batteries. The connection is made via Bluetooth, i.e. your Bluetooth function on your mobile phone must be switched on. The app displays the following functions in real time: - Voltage in volts (V) - Current in amperes (A) - Power in watts (W) - Capacity and remaining capacity in ampere hours (Ah) - Number of charging cycles - Charging/discharging allowed The battery transmits the information whether charging or discharging of the battery is "allowed" or "stopped" due to an error message, such as an increased temperature. Error messages that can be displayed below the state of charge in percent are: - Everything is OK! - The battery is too cold! - The battery is too hot! - There is a disbalance in the cells. Don't worry. If you use me, I'll even it out. - The charging voltage is too high. Please make sure your charger is not desulphating and charging below 14.4V. - The current you are charging with is too high! - You are trying to draw more current than I can supply. - One cell has too low a voltage. Please charge me! - The battery voltage is too low. Please charge me!
Simple AVR
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Simple AVR brings focused control of compatible Denon and Marantz AV receivers to Apple Watch. Use the iPhone companion to discover your receiver on the local network or add it by IP address, then control it from your wrist. Included with the app: • Main Zone power, volume, mute and input control • Volume adjustment with the Digital Crown • Adjustable Crown sensitivity and direction • Receiver discovery and information on iPhone Premium — optional one-time in-app purchase: • Control Zone 2 and other supported zones • Browse internet radio stations and USB tracks on compatible HEOS receivers • Control HEOS playback from Apple Watch • Customise zone names and use your receiver’s renamed inputs • Choose which inputs appear on your Watch • Switch between multiple receivers on the Watch • Change the receiver’s Friendly Name from iPhone Requires a paired iPhone and Apple Watch, with local-network access to a compatible receiver. Enable Network Control on the receiver. HEOS features require a compatible HEOS receiver; available sources and zone capabilities vary by model and receiver configuration. HEOS audio is shared between zones using the receiver’s HEOS player. Premium is a one-time purchase, not a subscription. Simple AVR is independent and is not affiliated with or endorsed by Denon, Marantz or their parent companies.
Screenshots
Verdict
The clearest difference is in-app purchases: LIONTRON Multi at none against Simple AVR's 1. LIONTRON Multi also leads on iOS requirement (11.0 vs 17.0). Simple AVR's advantage is update cadence (daily vs every 3 weeks). On price, ads 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. Simple AVR sells 1 one-off in-app purchase. LIONTRON Multi asks for nothing beyond the download.
LIONTRON Multi ships an update every 3 weeks, Simple AVR daily. The most recent releases landed on November 3, 2026 and November 10, 2026 respectively.
| Parameter | LIONTRON Multi | Simple AVR |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 26.9% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, Apple Watch |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Liontron GmbH & Co. KG | Raymond Delsol |
In-app purchases
LIONTRON Multi
No in-app purchases
Simple AVR
- Simple AVR Premium$4.99









