TingFeiFei vs cjlass
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TingFeiFei
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We control and operate the APP in the People's Republic of China (" PRC "), and unless otherwise stated, the materials displayed on the APP are used solely for the purpose of promoting our products and services in the PRC. We make no representations about the suitability or appropriateness of any material on the APP anywhere else. If you choose to access the APP from elsewhere, you are responsible for compliance with applicable local laws. It is also important to note that this APP is not part of the medical device registration. Main functions: TingFeiFei analysis software for infants and young children is designed for children respiratory doctors and parents to analyze whether there is moist rales or other pathological sounds in the lungs of children aged from 2 months to 14 years. To help pediatric respiratory doctors improve work efficiency, optimize medical services, and provide effective data support; At the same time, it is also hoped to help parents of children to understand whether the child's lung breathing sound is normal when the child has a fever and cough, and whether there is a risk of pneumonia. Disclaimer: 1. When using the information provided by the APP client, the user should consult a doctor before making a decision. If the content of the information is wrong, and the judgment of their own situation is wrong, the user shall bear the consequences. The APP will not be responsible for any deviation in using the client data by itself. 2. The APP is for doctors to study and research, and is not used as diagnostic basis, medical advice and other medical services for patients.
cjlass
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# Tutoring Management System User Guide *Data in this software is only saved locally* This system provides three core functions: student management, course management, and fee management. Student management supports adding students, viewing details and contact information; course management includes calendar view, course creation, and status update; fee management can track income and expenditure, pending receipts, and generate analysis reports. The system supports synchronizing courses to the system calendar and provides multi-dimensional data statistics functions.
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Verdict
The clearest difference is update cadence: TingFeiFei at fortnightly against cjlass's every 13 months. TingFeiFei also leads on iOS requirement (13 vs 18.4). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
TingFeiFei ships an update fortnightly, cjlass every 13 months. The most recent releases landed on October 4, 2026 and October 13, 2026 respectively.
| Parameter | TingFeiFei | cjlass |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly — better | Every 13 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13 — better | 18.4 |
| Further details — not scored | ||
| Size | 54 MB | 11 MB |
| Age rating | 12+ | 4+ |
| Developer | 广东汉泓医疗科技有限公司 | 波 景 |
In-app purchases
TingFeiFei
No in-app purchases
cjlass
No in-app purchases









