The table below resume the applied price for the Datacenter version of Kepler - Attachment Fields | Simple & Multiple
| Users | Price |
|---|---|
| 50 | $150/year |
| 100 | $200/year |
| 250 | $300/year |
| 500 | $450/year |
| 750 | $500/year |
| 1000 | $650/year |
| 2000 | $1 500/year |
| 3000 | $1 700/year |
| 4000 | $1 900/year |
| 5000 | $2 000/year |
| 6000 | $2 200/year |
| 7000 | $2 400/year |
| 8000 | $2 600/year |
| 9000 | $2 800/year |
| 10000 | $3 000/year |
| 11000 | $3 200/year |
| 12000 | $3 200/year |
| 13000 | $3 200/year |
| 14000 | $3 200/year |
| 15000 | $3 500/year |
| 20000 | $4 000/year |
| 25000 | $4 800/year |
| 30000 | $5 000/year |
| 35000 | $5 500/year |
| 40000 | $6 000/year |
| 45000 | $6 300/year |
| 50000 | $6 600/year |
| unlimited users | $7 000/year |
You can find more information about Atlassian pricing strategy over here: https://www.atlassian.com/licensing/data-center-approved-apps#