TL;DR: If you are replacing Castia, the closest options are Laguna, Spaces Life, Sakneen. The table below compares 12 alternatives on what they do, stage, size and status.
Every alternative below is compared on what it actually does, not just its category — so you can see which one genuinely replaces Castia (YC Winter 2022).
Last verified:
The three closest alternatives to Castia are:
| Alternative | What it does | Stage | Team | Status |
|---|---|---|---|---|
| Laguna | — | YC Winter 2020 | 2 | Inactive |
| Spaces Life | — | YC Winter 2009 | — | Inactive |
| Sakneen | Shopify for Real Estate Developers | YC Winter 2020 | 9 | Active |
| Riley | MailChimp for SMS | YC Winter 2017 | 2 | Inactive |
| Atmos | The entire homebuilding process, all online | YC Summer 2020 | 30 | Inactive |
| Jupe | Just add land | YC Summer 2021 | 7 | Inactive |
| Houm | All-in-one real estate marketplace for Latin America | YC Winter 2021 | 400 | Active |
| Smart Alto | Easiest way to set appointments with real estate leads | YC Winter 2017 | 8 | Inactive |
| hypcloud | A tech-enabled commercial mortgage broker. hypcloud allows property… | YC Summer 2018 | 14 | Acquired |
| Naborly | A credit bureau for the renting generation. | YC Winter 2018 | 25 | Acquired |
| Starcity | Starcity was one of the largest co-living brands. Exit to Common in… | YC Summer 2016 | — | Acquired |
| Alude | We offer free software that automates bureaucracy for real-estate… | YC Winter 2020 | 8 | Active |
It depends on your size. Laguna is the closest match on what Castia actually does. If you need something more established, sort the table by team size — larger teams generally mean more support and a longer track record. If budget is the constraint, the earlier-batch companies are usually the ones still competing on price.
Castia is no longer listed as active, so anyone still relying on it should plan a migration to one of the alternatives above.
Every company here is Y Combinator-backed and was matched to Castia on what it actually does — its own description of its product — rather than on a broad category label. Batch, team size and operating status come from the YC directory and are shown as-is. We do not rank by payment.
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