Winch is a master-slave replication engine that allows mobile apps to work offline. It packages app data into optimized packs that are stored on a content delivery network and synced efficiently to local mobile databases via client-side SDKs. Key features include uploading data via HTTP API, syncing to keep client data in sync, and accessing data via a simple key-value store model of namespaces containing records with keys and values.

3. That's how your
mobile app
looks... when
you're mobile (!)

4. This is because...

5. (1) mobile
networks suck...

6. (2) ...it's a pain in
the ass to solve

8. Let your mobile
app work off-line!

9. What is it?

10. Winch [wɪntʃ] noun.
A master-slave replication engine
designed to perform well over mobile
networks.
“

11. How does it
work?

12. As simple as 1, 2, 3
1. you upload your data,
• we provide an HTTP API for that,
2. our servers prepare it for transfer,
• we re-package your data into optimal packs,
• we store it on a CDN for efficient transfers,
3. it is sent to mobile clients and stored in a local database,
• we provide a client-side SDK for that.

13. Concepts

14. In short
Winch is a key-value data store.
“

15. More precisely
• your data lives in a datastore made of:
• namespace -s which contain:
• record -s made of:
• key ,
• value
It's like a collection of hash maps.

16. Think of it as...
datastore ~ database
namespace ~ table
key ~ primary key
value ~ data

17. How-to?

18. (1/2) Upload data on Winch server
• We provide an HTTP API:
• use our Python or Lua client library,
• or use cURL from the command-line.

19. (2/2) Sync data with Winch client
• We provide a SDK for iOS and Android:
• call sync() to keep your client in sync,
• then get your data via get(ns, key) .
It's fully-packaged and easy to use! No networking code required™.

20. Give It A Try!

21. Steps
1. Register on http://winch.io,
2. Activate your account,
3. Follow our step-by-step User Guide.

22. Need Help?

23. Just ask!
• Ping us on Twitter: @winch_io,
• Drop us an email: winch AT moodstocks DOT com .

24. Thanks :)