Grape Solar vs Epoch Li
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Grape Solar
Monitor and control your solar charge controller remotely. View system status, historical data, and adjust parameters like battery type and load settings. Requires a compatible BT module.
- Remote display and operation
- PV, battery, and DC load status
- Historical data display
- Parameter settings
- Battery type adjustment
- Load mode settings
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GrapeSolar APP is used as a remote display and operation panel for the relevant solar charge controller (an external or inbuilt BT module is required for usage). By operation on this APP, you can check the status of PV, battery, DC load for the solar DC charge system with charge controller. We have 3 main pages of operations in ChargePro 2.0. The first page is for displaying the status of the system, the 2nd page is for displaying the historical data, the last page is for displaying the parameters for settings. Except for showing the present system information, we also can set the parameters for the charge controllers in the parameter setting pages, like for battery type, battery charge & discharge voltages, load mode settings and etc. For more information, please contact the solar charge controller providers.
Epoch Li
Monitor your lithium-ion battery system in real-time via Bluetooth. View voltage, current, power, and internal resistance. Receive alerts for temperature, short circuits, and voltage deviations to extend battery life and enhance stability.
- Real-time voltage, current, power, and internal resistance display
- Individual battery voltage and alarm status monitoring
- Cell comparison and balancing display
- Temperature and critical parameter warnings
- Record of all warnings and protection events
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Make sure you have the latest app version. Turn on your Bluetooth. Tap the icon to open the App. It will search for all Epoch batteries within the range of your Bluetooth device and provide a list. If all the batteries are not listed, move closer to the battery location and refresh the screen. Choose the battery you want to look at. The Epoch intelligent battery management system and the active equalizer are connected via Bluetooth to monitor the battery status, collect, store and process information during battery operation in real time, exchange information with external devices, and solve the safety, usability and usage of the lithium battery system The key issue of life is to extend the service life of the battery to a certain extent, and to enhance the stability of the battery pack to a certain extent. 1. Display real-time voltage, current, power, internal resistance and other parameter values, and display them in the form of instrument panels and numbers; 2. Display the real-time voltage and alarm status of all single batteries. If the reported parameters trigger the alarm value or protection value, an alarm will be prompted; 3. Each data comparison of the battery cell, the voltage difference. Maximum voltage cell Minimum voltage cell. And the display of cell balance 4. Cell temperature warning. Real-time alarm for over temperature, short circuit, over voltage, under voltage 5. Record the warnings that occur at each moment. 6. Record all battery protection times. Best Regards !
Screenshots
Verdict
Grape Solar and Epoch Li both sit at 2.7 stars, but that hides the real split: 29% of Epoch Li's written reviews are positive against 0% of Grape Solar's. Epoch Li also leads on ratings volume (70 vs 3). Grape Solar's advantage is iOS requirement (11.0 vs 13.0). On price, rating, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 2.7 for Grape Solar against 2.6 for Epoch Li. That said, the two scores are not equally well evidenced: Epoch Li has 70 ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 0% of Grape Solar's written reviews are positive against 29% of Epoch Li's.
| Parameter | Grape Solar | Epoch Li |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (3 ratings) — better | 2.6 (70 ratings) |
| Positive reviews | 0.0% of reviews | 29.2% of reviews — better |
| Number of ratings | 3 | 70 — better |
| Update frequency | — | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 7 MB | 35 MB |
| Age rating | 17+ | 17+ |
| Developer | HNE | EDG Sales International LLC |
Customer experience
Grape Solar
Epoch Li
Bugs and requests
Grape Solar
Not enough reviews yet to summarise bugs or requests.
Epoch Li
Reported bugs
14 issues- Bluetooth does not auto-connect
- Bluetooth signal frequently drops
- App crashes frequently
- App disconnects when minimized or switching apps
- App does not remember previously connected devices
Show 9 moreShow fewer
- App shows incorrect battery charge levels
- App history tab is useless
- App is not documented, data is unclear
- App shows 0% or no data after recent updates
- App does not always reflect true battery charge
- App cannot see information from multiple batteries in series
- App has backward animations and sloppy UI
- App requires password for advanced settings without providing it
- App disconnects and will not re-connect until app is killed and reopened
Requested features
10 requests- Filter Bluetooth devices by MAC address prefix
- Implement BLE non-exclusive connection
- Bring back old app features (time to charge/discharge)
- Document app data and features
- Provide password for advanced settings
Show 5 moreShow fewer
- Allow saving of battery connections/names
- Release old app as a separate option
- Improve Bluetooth connection stability and range
- Fix incorrect battery charge readings
- Display data for multiple batteries in series correctly
In-app purchases
Grape Solar
No in-app purchases
Epoch Li
No in-app purchases









