Multi vs Ultimate9 BM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Multi
Monitor multiple 12V vehicle batteries simultaneously with this app. It stores data permanently, allows export and sharing, and provides trip records and expense management. Receive notifications when near your connected devices.
- Monitor multiple 12V vehicle batteries
- Supports 4 device connections
- Permanent data storage
- Data export and sharing
- Trip record tracking
- Vehicle expense management
- Proximity notifications
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Multi-Battery Monitor(BLE) is a vehicle battery management software, which is compatible with last generation product BM2. It can support 4 different devices connection at one time, conveniently manage multi 12V vehicle battery. Data stored permantly and can be exported or shared by email. User can receive notification when get close to device. What's more, it has trip record and vehicle expense management function.
Ultimate9 BM
Monitor your car battery's real-time voltage and test its cranking and charging systems. View all battery data directly on your mobile device via Bluetooth connection.
- Real-time battery voltage monitoring
- Cranking system testing
- Charging system testing
- Bluetooth data transfer
- View data on mobile device
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Ultimate9 BM is an application for vehicle battery,which can let them know the real-time voltageof car battery. It helps users to know the battery fully by testing cranking and charging system voltage. All of the datas can be showed on mobile through bluetooth.
Screenshots
Verdict
The clearest difference is price: Ultimate9 BM at Free against Multi's $9.99. Ultimate9 BM also leads on rating (5.0 vs 3.3) and iOS requirement (10.0 vs 15.0). On review sentiment, ratings volume, 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
Ultimate9 BM is free to download; Multi costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Ultimate9 BM holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 8 and 3 respectively. Written reviews point the same way: 51% of Multi's written reviews are positive against 57% of Ultimate9 BM's.
| Parameter | Multi | Ultimate9 BM |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 3.3 (8 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 51.3% of reviews | 57.1% of reviews — better |
| Number of ratings | 8 — better | 3 |
| Update frequency | Every 3 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 15.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 16 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Shenzhen Amoeba New Energy Co., Ltd. | 俊华 邹 |
Customer experience
Multi
Ultimate9 BM
In-app purchases
Multi
No in-app purchases
Ultimate9 BM
No in-app purchases









