arq vs Upstash QStash
| arq | Upstash QStash | |
|---|---|---|
| Free plan | Yes | |
| Paid from | $1/mo | |
| Platforms | Linux, self-hosted | api, Web |
| Deployment model | self_hosted | cloud |
| Custom retry policy | Yes | |
| Scheduled jobs | Yes | |
| Official SDK languages | Python | |
| Free plan | Yes | |
| Delivery guarantees | at_least_once | |
| Dead-letter queues | Yes | |
| Ordering guarantees | per_queue | |
| Maximum message size | 10 MB | |
| Supported protocols | HTTP |
Listed together in Best Task Queue Software