Privacy Policy
The short version. Plenish has no account and no sign-up. Everything you log — doses, weight, food, water, side effects, photos, chats — is stored on your phone. We don't sell your data, show ads, or track you across other apps. A few features send data off your phone only when you use them; each one is listed below.
Who we are
Plenish is made by Thai Huy Nguyen, an independent developer (“we”, “us”). Questions about this policy or your data: thaihuy15091992@gmail.com.
What stays on your phone
The following is stored only on your device, in the app's private storage. We never receive it:
- Your profile: birthday, sex, height, weight, goal weight, activity level, medication, dose and schedule, and the goals Plenish calculates from them.
- Your logs: doses and injection sites, weight, food, protein, fiber, water, activity, side effects, mood, bowel movements and notes.
- Progress photos, the meal photos you log, your profile photo, foods you create or save, reminders and settings.
- Your chat history with Nib and the “Saved Memories” Nib keeps for you.
Like other app data, it may be included in your phone's own backups (iCloud or a computer on iPhone; Google backup on Android, which leaves out photos), under your platform's control and your settings.
Apple Health and Health Connect
If you allow it, Plenish reads from Apple Health (iPhone) or Health Connect (Android): your height and weight, to fill in and update your profile (they set your daily goals), and today's step count, which appears as a steps entry in your activity log for your daily activity goal. On iPhone it can also read dietary energy. Plenish never writes to either, and reads only the data types you switch on, from the last 30 days. What it reads stays on your phone: health data is never sent to our servers, never used for advertising, never sold, and never shared with data brokers. You can turn access off at any time in the Health app (iPhone) or in Health Connect (Android).
The use of information received from Health Connect will adhere to the Health Connect Permissions policy, including the Limited Use requirements.
Features that send data off your phone
These only run when you use the feature.
Chat with Nib (AI)
Before your first message, Plenish asks for your permission. If you accept, each time you chat we send, through our server, to Anthropic (the maker of the Claude AI model): the messages and photos you send in chat, your name and your companion's name, your medication's name, your Saved Memories, and today's goals and totals for protein, fiber, water and calories. Our server passes the request on and returns the reply; it does not store what you send. Under Anthropic's commercial terms, data sent through its API is not used to train its models. If you don't accept, nothing is sent.
Meal photo recognition
When you snap a meal to estimate its nutrition, the photo is sent through our server to Anthropic to identify the food. If you use Fix Results to correct the estimate, the change you type and the current result are sent along with the photo. None of this is stored on our server. On your phone, the photo is kept as the picture of the food you log, and is erased with your other data.
Food search and barcodes
What you type in food search and the barcodes you scan are sent to food databases to find nutrition facts: FatSecret (through our server), USDA FoodData Central and Open Food Facts. These requests contain the search text or barcode only — not your name, logs or health data.
Server logs
Like most web services, our server (Google Cloud, United States) keeps standard request logs — time, your IP address and, for food search, the search text or barcode — for up to 30 days, to keep the service secure and working. They don't include your chat messages, photos or logs.
Purchases
Payments are handled entirely by Apple (App Store) or Google (Google Play); we never see your card. To unlock Premium, the app uses RevenueCat, which receives an anonymous app ID and your store purchase records.
App analytics and crash reports
We use Google Firebase Analytics and Crashlytics to understand how the app is used and to fix crashes: for example, which screens are opened, onboarding steps, paywall views, purchases, and crash diagnostics, linked to a random app-instance ID. These never include your logs, health values, photos or chat messages. Google may infer an approximate location (such as the city) from your IP address for these reports; Plenish never asks for your location. We don't use the advertising identifier (IDFA on iPhone, Advertising ID on Android).
Emails you send us
If you use “Give feedback” or contact support, we receive what you choose to send, including any attachment, plus your app and system version (added to the email so you can see it before sending). We use it only to reply and improve the app.
What we don't do
- We don't sell or rent your data.
- We don't show ads or share data with advertisers.
- We don't track you across other companies' apps or websites.
- We don't use your data to train AI models.
Keeping and deleting your data
Data on your phone stays until you delete it. Account › Personal details › Delete account erases everything Plenish stored on your device: profile, logs, photos, chats and settings. Deleting the app does the same. Our server does not keep chat or photo content; its request logs are deleted after 30 days. Analytics data is kept according to Google's retention settings (up to 14 months) and crash reports for up to 90 days. Purchase records are kept by Apple or Google and RevenueCat as long as needed to manage your subscription.
To delete your Plenish data:
- On your phone, open Plenish › Account › Personal details › Delete account. This erases your profile, logs, photos, chats and settings right away.
- For data kept off your phone (analytics, crash reports and purchase records), email thaihuy15091992@gmail.com with the subject “Delete my Plenish data”. We'll reply within 30 days and delete the records we can link to you.
Your rights
Depending on where you live (for example under the GDPR or California law), you may have the right to access, correct or delete your personal data, or object to its processing. Because your logs live only on your device, you control them directly. For anything else — including analytics or purchase records — email us and we'll help.
Children
Plenish is meant for adults and is not directed to children under 18.
Not medical advice
Plenish helps you record and understand your own habits. It does not diagnose, treat, or tell you what dose to take. Always follow your healthcare provider's guidance.
Changes
If this policy changes, we'll update this page and the date above. Significant changes will also be noted in the app's release notes.