Fever Memo vs JoyTech
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fever Memo
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Using the Bluetooth communication function of the non-contact thermometer CR (NT-11BT, NIR-11BT), you can display and save the temperature measurement results on your smartphone. You can perform the following operations using the Bluetooth communication function using the “Netsu Memo” installed in advance on your smartphone. 1. Display of measurement results The measured body temperature and object surface temperature are displayed on the screen of a smartphone. 2. Graph and history display The saved measurement results are displayed on the screen of a smartphone as a graph (body temperature only) and historical data. 3. Alarm setting (only when measuring body temperature) If the temperature measurement result exceeds the preset upper and lower limits, the color of the graph displayed on the smartphone will change to notify you. Specifications Supported OS: iOS 10.0 or above
JoyTech
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JoyTech records the data of blood pressure, blood oxygen and body temperature for users in an all-round way, and provides users with measurement reminder, knowledge popularization, data sharing and other services. JoyTech can be connected to multiple types of equipment of the company, which can help users to measure and understand health data more conveniently, so that users can understand health data information in a targeted way. JoyTech can record blood pressure, blood oxygen, and body temperature in an all-round way and synchronize them to apple health, which is convenient for users to manage and view their own health data in a real-time and scientific way. [Jurisdiction Statement] The blood pressure and temperature devices supported by this application have obtained regulatory licenses in China, the United States, the European Union, and Canada. Please confirm whether your region is included before use. [Disclaimer] Knowledge popularizing views should not be regarded as any diagnostic service or advice and should not substitute for a doctor's clinical diagnosis; Do not exclude omission, error, ambiguity and other situations in popular science knowledge, please carefully refer to. JoyTech does not recommend any drug therapy, if you need treatment, please follow the doctor's advice. JoyTech shall not be liable for any adverse consequences caused by non-compliance with medical advice.
Screenshots
Verdict
The clearest difference is iOS requirement: Fever Memo at 10.1 against JoyTech's 12.0. 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.
Fever Memo ships an update every 3 weeks, JoyTech monthly. The most recent releases landed on September 24, 2026 and September 10, 2026 respectively.
| Parameter | Fever Memo | JoyTech |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 10.1 — better | 12.0 |
| Further details — not scored | ||
| Size | 201 MB | 111 MB |
| Age rating | 17+ | 17+ |
| Developer | CUSTOM CORPORATION | Joytech Healthcare Co.,Ltd. |
In-app purchases
Fever Memo
No in-app purchases
JoyTech
No in-app purchases









