MyMidac vs HAIDI
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
MyMidac
Monitor your car battery's charge, lifespan, and alternator performance in real-time. Receive anomaly alerts and manage multiple vehicles from a single smartphone. Data is stored in the cloud for easy access.
- Real-time battery charge status
- Estimate remaining battery life
- Monitor alternator operation
- Anomaly alerts
- Set deadlines and reminders
- Manage multiple vehicles
- Cloud data storage
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Emotion is the Midac technology that thanks to a built-in sensor and a dedicated app allows you to verify in real time: β’ state of battery charge β’ remaining battery life β’ alternator operation Emotion is available in the Universal KIT version (easily applicable to all types of batteries except Start & Stop) and Battery with Integrated Chip. With the Emotion Technology: download the APP on your Smartphone and connect the battery of your car to check the state of charge, the remaining useful life and the proper operation of the alternator. Furthermore, the app reports alerts in case of anomalies, and thereβs a dedicated section to set your deadlines. Check out which Emotion Battery is compatible with your vehicle. You can control multiple Emotion devices with a single smartphone or use more smartphones to control a single Emotion device. This allows you to manage freely your vehicle fleet and control various types of vehicles (cars, trucks, campers, buses), excluding start-stop technology. Create your personal profile in the Midac Cloud using the APP. Battery data, statistics and reminders are filled in the Cloud and are updated every time you launch the APP. You can access your data for reference from any smartphone.
HAIDI
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This App is for the 12V lithium battery (LiFePO4). Get real-time battery information using this app. FEATURES: Works with Bluetooth 4.0 or higher Monitors state of charge, cycles, current, voltage, temperature, capacity, average time to empty and average time to full.
Screenshots
Verdict
The clearest difference is update cadence: MyMidac at every 2 months against HAIDI's every 32 months. MyMidac also leads on iOS requirement (9.3 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
MyMidac ships an update every 2 months, HAIDI every 32 months. The most recent releases landed on November 2, 2026 and October 27, 2026 respectively.
| Parameter | MyMidac | HAIDI |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | β |
| Update frequency | Every 2 months β better | Every 32 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | β |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 9.3 β better | 14.0 |
| Further details β not scored | ||
| Size | 23 MB | 11 MB |
| Age rating | 4+ | 17+ |
| Developer | We Digital | SHENZHEN SMARTEC TECHNOLOGY COMPANY LIMITED |
In-app purchases
MyMidac
No in-app purchases
HAIDI
No in-app purchases









