Whisper Lithium vs FJAPP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Whisper Lithium
This app monitors and manages lithium battery systems in real-time. It displays critical battery parameters, alerts users to potential issues like over-temperature or voltage anomalies, and helps prolong battery life and enhance pack stability. It also supports viewing multiple battery statuses and offers online assistance.
- Real-time voltage, current, and power display
- Single battery voltage and alarm status
- Cell comparison and balance display
- Temperature and short circuit warnings
- Warning event logging
- Support for multiple battery viewing
- Online assistance
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Whisper Lithium management system monitors battery status, collects, stores, and processes information during battery operation in real time, exchanges information through Bluetooth, solves key issues of safety, ease of use, and service life of lithium battery systems, and prolongs battery life Life, enhance the stability of the battery pack. 1. Display real-time voltage, current, power, internal resistance and other parameter values. 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. Abnormal situation reporting function 7. Support to view the cell status of multiple batteries at the same time. 8. Compatible with different models of products 9.Ask for help online. For online detection equipment 10.Cloud adjustment parameters after sales Best Regards ！
FJAPP
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1. Product recommendations, full product line, and detailed product descriptions 2. Community reviews and product knowledge sharing 3. Modifying and fine-tuning product specifications 4. Handling day-to-day after-sales service matters
Screenshots
Verdict
The clearest difference is iOS requirement: FJAPP at 13.0 against Whisper Lithium's 15.6. On price, update cadence, 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.
Whisper Lithium ships an update every 3 weeks, FJAPP monthly. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | Whisper Lithium | FJAPP |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 32 MB | 45 MB |
| Age rating | 4+ | 17+ |
| Developer | 江西达伙网络科技有限公司 | 凡己科技(苏州)有限公司 |
In-app purchases
Whisper Lithium
No in-app purchases
FJAPP
No in-app purchases
