Appointments for Nextcloud vs Rallly
Both are alternatives to Calendly. Here's how they stack up — verified facts, no spin.
Also searched as Rallly vs Appointments for Nextcloud — same comparison, one verdict.
Appointments for Nextcloud and Rallly are closely matched on ownership (88 vs 84) — this one comes down to pricing and to which trade-offs below you can live with.
Appointments for Nextcloud
Calendly-style booking pages built into your existing Nextcloud.
Appointments is a Nextcloud app that adds Calendly-style public booking pages on top of a Nextcloud instance's own calendar (CalDAV-compatible, so it also works with iOS, Android, and Google Calendar via sync). It's the natural fit for anyone already self-hosting Nextcloud who wants booking pages without adding a second standalone app to operate.
Rallly
Open-source group scheduling and meeting-time polling.
Rallly solves a different but related problem: instead of one person publishing a booking link, it lets a group vote on the best time for a meeting across several proposed slots — the open-source answer to Doodle that also covers a chunk of Calendly's group-scheduling use case. It's actively developed and offers a hosted version (rallly.co) alongside a documented self-hosted Docker deployment.
Side by side
10 points of comparison, every one read from a verified field. Green marks the side that wins a row outright. A dash means we do not hold that fact — never that it is zero.
| Appointments for Nextcloud | Rallly | |
|---|---|---|
| Sovereignty ScoreOur transparent 0–100 composite for data ownership and exit cost. | 88 | 84 |
| Open source | Yes | Yes |
| Self-hostable | Yes | Yes |
| Local-first data | Yes | Yes |
| License | AGPL-3.0 | AGPL-3.0 |
| Pricing | Free; installed from the Nextcloud App Store into an existing Nextcloud instance. Optional donations support the solo maintainer. | Free, self-hosted via Docker. A hosted version exists at rallly.co with an optional paid Pro tier for extra features. |
| RAM to run it wellThe figure that actually matters, not the vendor's minimum. | Whatever your Nextcloud already uses, since the app adds no services. A Nextcloud stood up just for booking still means running all of Nextcloud; 4 GB is comfortable | 2 GB covers the bundled stack (Traefik, PostgreSQL, Garage object storage and the app) for a team's polls |
| Realistic running costWhat the box costs each month if you run it yourself. | $0 on a Nextcloud you already run; otherwise the cost of Nextcloud itself, $12–24/mo on a 4 GB VPS | $6–12/mo on a 2 GB VPS plus a transactional email provider. Free for one registered account; a one-off $49 licence covers up to 5 (guest voters don't count) |
| Setup timeHonest first-install estimate, not the marketing quickstart. | 15 minutes from the Nextcloud app store, plus an hour to build your schedule | 30 minutes with the installer script, if DNS and SMTP are ready first |
| Ongoing maintenanceThe part nobody budgets for. | Check the app's supported Nextcloud versions before every major Nextcloud upgrade, because it's one developer's app and can trail Nextcloud's releases. Otherwise it updates through the app store like any other app. | ./rallly.sh update pulls new 4.x images. ./rallly.sh backup dumps PostgreSQL only, so copy backups off the server and back up the garage-data volume separately if people upload files. Edit only .env, because updates overwrite the other stack files. |
Appointments for Nextcloud edges it on the Sovereignty Score, but the right pick depends on the trade-offs below.
Weighing both against staying on Calendly? Is Calendly free? What it actually costs →
Appointments for Nextcloud
Strengths
- +Actively maintained (updated within the last two weeks) with very positive community ratings on the Nextcloud App Store
- +No new infrastructure if you already run Nextcloud — one more app, not a second server to maintain
- +Standard CalDAV underpinnings mean no lock-in to a proprietary calendar format
- +Supports GDPR-relevant features like embeddable request forms and up to 10 booking pages per user
Trade-offs
- −Only useful if you're already running (or willing to run) Nextcloud — it's not a standalone product
- −Maintained largely by one developer; bus-factor risk is higher than a larger team project
- −No built-in payment collection, unlike Calendly's paid tiers or Easy!Appointments' add-ons
- −Nextcloud itself can be heavier to operate than a single-purpose scheduling app
Rallly
Strengths
- +Simple, focused tool that's genuinely good at the group-availability-poll problem
- +Active project (5,100+ stars, commits within the last day) with a documented Docker Compose deployment
- +AGPL-3.0 keeps improvements to a hosted fork open
Trade-offs
- −Not a 1:1 booking-page replacement — no per-provider service catalog, payments, or staff management like Calendly/Easy!Appointments
- −Primary distribution is the hosted rallly.co app; self-hosting is supported but secondary in the project's own messaging
- −AGPL-3.0 requires you to publish modifications if you offer a modified version as a network service
Which one fits you
The trade-offs above, turned into a decision. Find the line that describes your team.
Choose Appointments for Nextcloud
if a lower exit cost matters more to you than any single feature, and actively maintained (updated within the last two weeks) with very positive community ratings on the Nextcloud App Store.
Choose Rallly
if simple, focused tool that's genuinely good at the group-availability-poll problem.
Neither, yet
if both carry a real cost you should weigh first — only useful if you're already running (or willing to run) Nextcloud — it's not a standalone product, and not a 1:1 booking-page replacement — no per-provider service catalog, payments, or staff management like Calendly/Easy!Appointments. If either of those is a dealbreaker for your team, the shortlist is wrong rather than the choice.
What it takes to run these yourself
Real requirements and honest running costs, not the vendor quickstart.
Self-hosting Appointments for Nextcloud
Whatever your Nextcloud already uses, since the app adds no services. A Nextcloud stood up just for booking still means running all of Nextcloud; 4 GB is comfortable RAM · 15 minutes from the Nextcloud app store, plus an hour to build your schedule
$0 on a Nextcloud you already run; otherwise the cost of Nextcloud itself, $12–24/mo on a 4 GB VPS
Self-hosting Rallly
2 GB covers the bundled stack (Traefik, PostgreSQL, Garage object storage and the app) for a team's polls RAM · 30 minutes with the installer script, if DNS and SMTP are ready first
$6–12/mo on a 2 GB VPS plus a transactional email provider. Free for one registered account; a one-off $49 licence covers up to 5 (guest voters don't count)
Appointments for Nextcloud vs Rallly — common questions
Is Appointments for Nextcloud a better fit than Rallly for scheduling & booking?
It depends on what you are optimising for, and the honest split is this: Appointments for Nextcloud scores 88 to Rallly's 84 on data ownership and exit cost, so it is the safer choice if you care about being able to leave. Rallly earns its place on a different axis — simple, focused tool that's genuinely good at the group-availability-poll problem. Neither is a wrong answer for every team; the table above is the actual comparison.
What happens if we want to switch later?
Appointments for Nextcloud keeps its data local or in open formats, so leaving is an export rather than a negotiation. Rallly is still self-hostable, so the files stay on your server either way — but it is not local-first by design, so check what its export produces before you rely on it.
Can I self-host Appointments for Nextcloud or Rallly?
Both can be self-hosted. The difference is what it costs you in time rather than whether it is possible — see the setup and maintenance rows above.
Are Appointments for Nextcloud and Rallly both alternatives to Calendly?
Yes — both appear in our Calendly comparison, which is why they are worth putting side by side. People usually arrive here already having decided to move off Calendly and now choosing between the two replacements, which is a narrower and much easier question.
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Facts verified 2026-07-09. Licenses and pricing change — spotted something out of date? That's a correction we want.