| App | One-time price | Platforms | License | Free tier | Same platform |
|---|---|---|---|---|---|
| Side Space(this app) | $19 one-time | Browser Extension | License not confirmed | No | – |
| Switchbar | Free tier, $20 one-time | Browser Extension, Mac, Windows | License not confirmed | Yes | Yes |
| OneTab | €49 one-time | Browser Extension | License not confirmed | No | Yes |
| TabTab | Free tier, $24 one-time | Mac | License not confirmed | Yes | No |
| Ommiq | Free tier, $1.99 one-time | Browser Extension, Web | Perpetual, lifetime updates | Yes | Yes |
| UpNote | Free tier, $29.99 one-time | Browser Extension, Linux, Mac, Windows | License not confirmed | Yes | Yes |
| Xpen | $19 one-time | Browser Extension | License not confirmed | No | Yes |
| Tailscan | $199 one-time | Browser Extension | License not confirmed | No | Yes |
| xActions | $19 one-time | Browser Extension | License not confirmed | No | Yes |
| BoltAi | $19 one-time | Mac | License not confirmed | No | No |
| Eagle | $29.95 one-time | Mac, Windows | License not confirmed | No | No |
| GoodLinks | $6.99 one-time | Mac | License not confirmed | No | No |
| SmartRSS: RSS Reader & Podcast | Free tier, $19.99 one-time | Linux, Mac, Windows | License not confirmed | Yes | No |
Prices are one-time license fees as listed on each developer's site and may change. Ranked by similarity to Side Space: shared category, tags, platforms and community likes.
Switchbar is the closest pay-once alternative to Side Space. Easily choose which browser, profile, or email client to use when clicking links on Mac and PC. Streamline your online experience with custom rules and deep linking capabilities. It costs Free tier, $20 one-time and runs on Browser Extension, Mac and Windows.
Yes. Switchbar, TabTab, Ommiq, UpNote and SmartRSS: RSS Reader & Podcast offer a free tier, and each also sells a one-time license if you outgrow it.
Ommiq is the lowest-priced option at Free tier, $1.99 one-time, compared with $19 one-time for Side Space. All prices are one-time license fees, not subscriptions.
Yes. Switchbar, TabTab, Ommiq, UpNote and BoltAi are available on Mac, Windows, Web and Linux, which Side Space does not support.
No. Every app on PayOnceApps is listed because it sells a one-time (perpetual) license. Some also offer a free tier or trial. Prices are checked against the developer's site but can change, so confirm on the app's website before buying.
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