Best Stacks Alternatives in 2026
Updated
20 platforms from project management software ranked against Stacks on the same published basis.
- 1Stacks vs Group-Office
- 2Stacks vs Nifty
- 3Stacks vs PLANKA
- 4Stacks vs Agantty
- 5Stacks vs Basecamp
- 6Stacks vs ClickUp
- 7Stacks vs Hive
- 8Stacks vs MeisterTask
- 9Stacks vs Backlog
- 10Stacks vs ProjectLibre
- 11Stacks vs OpenProject
- 12Stacks vs Planio
- 13Stacks vs Trello
- 14Stacks vs KanbanFlow
- 15Stacks vs Fusioo
- 16Stacks vs Instagantt
- 17Stacks vs Kaneo
- 18Stacks vs Ora
- 19Stacks vs Rillsoft Project
- 20Stacks vs YouTrack
Stacks alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Group-Office | 8.0 | Free plan | €12/mo | Android, iOS, Linux, Mac, self-hosted, Web, Windows |
| 2 | Nifty | 7.9 | Free plan | $10/mo | Android, Browser, iOS, Mac, Web, Windows |
| 3 | PLANKA | 7.9 | Free plan | €36/mo | Android, API, iOS, Linux, Mac, self-hosted, Web, Windows |
| 4 | Agantty | 7.8 | Free plan | €4.17/mo | Android, iOS, Linux, Mac, Web, Windows |
| 5 | Basecamp | 7.8 | Free plan | $25/mo | Android, API, iOS, Mac, Web, Windows |
| 6 | ClickUp | 7.8 | Free plan | $9/mo | Android, iOS, Mac, Windows |
| 7 | Hive | 7.8 | Free plan | $5/mo | Android, API, iOS, Mac, Web, Windows |
| 8 | MeisterTask | 7.8 | Free plan | $12.50/mo | Android, iOS, Mac, Web, Windows |
| 9 | Backlog | 7.7 | Free plan | $35/mo | Android, API, iOS, self-hosted, Web |
| 10 | ProjectLibre | 7.7 | Free plan | $9.99/mo | Linux, Mac, Web, Windows |
| 11 | OpenProject | 7.6 | Free plan | €5.95/mo | API, Linux, self-hosted, Web |
| 12 | Planio | 7.6 | Free plan | — | Android, API, iOS, self-hosted, Web |
| 13 | Trello | 7.6 | Free plan | $5/mo | Android, API, iOS, Web |
| 14 | KanbanFlow | 7.5 | Free plan | $5/mo | Android, API, iOS, Web |
| 15 | Fusioo | 7.4 | Free plan | €912/mo | API, Web |
| 16 | Instagantt | 7.4 | Free plan | $10/mo | Web |
| 17 | Kaneo | 7.4 | Free plan | $3.33/mo | API, self-hosted, Web |
| 18 | Ora | 7.4 | Free plan | $5.99/mo | Web, iOS, Android |
| 19 | Rillsoft Project | 7.3 | No | — | Linux, self-hosted, Web, Windows |
| 20 | YouTrack | 7.3 | Free plan | $5.40/mo | Web, Windows, Mac, Linux, iOS, Android |
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Questions about Stacks alternatives
What is the best alternative to Stacks?
Group-Office, number 1 in project management software with a score of 8.0 out of 10. The others here: Nifty, PLANKA, Agantty and 16 more.
What is the best free alternative to Stacks?
Group-Office is the best-ranked alternative with a free plan. 19 of the 20 alternatives here publish a free plan on their own pricing pages.
Is there an open-source alternative to Stacks?
Yes: Group-Office.
How are these alternatives ranked?
Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on.