Usually people land here for one of three reasons: BigGantt rewrote dates they never touched, deleted issues when a project was removed from a view, or demanded third-party cookies. I built SteadyGantt after reading 273 BigGantt reviews. Its one rule: nothing is written to Jira until you confirm a diff.
Verbatim quotes from public Marketplace reviews, retrieved August 2026. Read them all here.
Every row below comes from a real incident in the reviews. Run these tests during any trial, mine included.
| The test | SteadyGantt | What BigGantt reviewers reported* |
|---|---|---|
| Install, open once, change nothing. Check the "Updated" field on your issues. | Untouched. The app is read-only until you confirm a change. | "Updates the last updated date on all projects even before first use. No warning!" (Dec 2024) |
| Remove a project from the chart, then search Jira for its issues. | Still there. SteadyGantt has no delete path — it can't delete an issue even by accident. | "Actually deletes the corresponding Jira issues… no trash bin." (Jun 2026) |
| Drag some bars, close the tab without saving. | Drafts restore when you come back. Jira was never touched. | Unintended date overwrites via sync. (Mar 2024) |
| Apply a change, then change your mind. | One click restores the previous values. | "Had to reset the timelines for each of the activity manually." (Feb 2022) |
| Open the network inspector while the app runs. | Zero third-party requests, cookies, or analytics. Data never leaves Atlassian (Forge). | Reviewers report cookie walls for LinkedIn, Facebook, Google Tag Manager domains. (2020–2022) |
| Time install → usable chart. | Open the project page. The chart is already there. | "Default import settings do not result in a useful chart." (Nov 2021) |
*Reports describe the version in use at the review date; BigGantt may have changed since. That's why each row is a test, not a claim — run it yourself. The SteadyGantt column you can test right now, no install: open the live demo.
| SteadyGantt | BigGantt (Appfire) | |
|---|---|---|
| Marketplace rating | New — launching 2026 | 3.5 / 5 · 273 reviews (Aug 2026) |
| Write model | Draft → diff → confirm per field → undo | Direct sync to Jira |
| Autosave of drafts & view state | Yes | — |
| Hour-level zoom | Hours to months | Day-level minimum, per reviewers (Feb 2024) |
| Data leaves Atlassian? | Never | Vendor-hosted components |
| Suite dependency | None | Part of the BigPicture family |
| Portfolio / resource management | Not included, by design | Yes, via BigPicture modules |
| Price, 100 users | Free at launch; $1.25/user/mo planned | $2,090/yr (Aug 2026, pricing API) |
| Free tier | Free ≤ 10 users, forever | Free ≤ 10 users |
SteadyGantt doesn't do portfolio management, resource workload, or capacity planning — on purpose. If you need those, BigGantt with BigPicture, or Tempo's Structure Gantt (4.2/5 as of Aug 2026), is the right shape of tool. SteadyGantt does one thing: a fast Gantt view of your project that can't corrupt your data.
It can't delete anything — there's no delete call in the app. The only fields it ever writes are the dates you tick in the diff dialog, and every sync has one-click undo.
No. SteadyGantt runs on Atlassian Forge — no external servers, no third-party requests, no cookies, no analytics.
Nothing to migrate. Your dates, hierarchy, and links live in Jira, not in either app. Uninstall one, install the other, everything's there.
Free for teams of 10 or fewer, forever. I answer every mail within 24 hours.
Install from the Marketplace →