react-native-mmkv VS WatermelonDB

react-native-mmkv is a wrapper around MMKV that allows you to easily implement secure storage in your app. It is arguably the fastest key-value storage for React Native apps

Why do you need to access the db from the file system? Can you just use something like https://github.com/mrousavy/react-native-mmkv ?

By using libraries like Reanimated, React Native MMKV, and React Native Skia, you leverage the native thread. However, I know there are developers building amazing things who think outside the box. I'm always thrilled when I read engineering blogs from companies like Netflix, Meta, and Shopify. They create solutions beyond the limits.

mmkv is not really designed to be used for “heavy” writes, or often changing values. But more as e.g. NSUserDefaults. The storage keeps growing over time which may cause memory issues if used wrongly. Here’s a related github issue: https://github.com/mrousavy/react-native-mmkv/issues/440

Persistence - React Native MMKV (supports encryption natively and easily integrates with TanStack Query via persistQueryClient)

if you need to store something small and simple use whatever. if is complex and speed is important use something performant. realmDB, https://github.com/mrousavy/react-native-mmkv and others are good fit for the job.

Screw you all, I'll use MMKV as my Local DB: please do not, as explained here.

Try react native mmkv https://github.com/mrousavy/react-native-mmkv

Storing the notes: For storing the notes, we will use the amazing WatermelonDB package which is a popular sqlite wrapper for react-native. Instead of using the default package we will use a fork of this that uses sqlcipher instead of the regular sqlite, allowing us to encrypt the database by passing a secret key.

Because most of the libraries I evaluated (RxDB, WatermelonDB) were entirely JS oriented, by design, none could provide a positive API surface in Native code.

never tried it but there is https://github.com/nozbe/WatermelonDB

As title says, is it a good option? There'll be like 60 webp images not some high quality. Or should I add some local db instead, something like: 1. https://github.com/ammarahm-ed/react-native-mmkv-storage 2. https://github.com/Nozbe/WatermelonDB

Watermelon DB.

Significantly improved performance (a lot of optimizations were done, and state management is more scalable by relying on an actual database)

Watermelondb it gives you an ORM, reactivity (when a records changes it cause UI re-render), and easy syncing with remote server, go with that if you don't know SQL that well.

More info here: https://github.com/Nozbe/WatermelonDB/issues/1254

Or WatermelonDb: https://nozbe.github.io/WatermelonDB/