RivAI vs DecAI: an honest comparison
DecAI (AI Home Design: Interior DecAI, by COOL SUMMER LIMITED) is an iPhone and iPad app with 100+ styles, an AI design chat, empty-room furnishing, exterior and garden design, and furniture swap and removal tools.
RivAI vs DecAI: both are iPhone and iPad apps that redesign rooms, exteriors and gardens from a photo. DecAI lists 100+ styles, a chat design agent, empty-room furnishing and a lifetime purchase option. RivAI has 43 styles, a Paint tool for one surface in an exact color, and Keep Structure vs Full Renovation control.
Disclosure: RivAI is our product. DecAI facts come from its own App Store listing or website, checked 2026-10-09.
Feature by feature
| Feature | RivAI | DecAI |
|---|---|---|
| Platform | iPhone and iPad app (iOS 17+) | iPhone and iPad app (iOS 15+) |
| Design styles | 43 | 100+ (per App Store listing) |
| Interior redesign | Yes | Yes |
| Exterior and garden redesign | Yes | Yes |
| Style transfer from a reference photo | Yes | Yes |
| Fill an empty room with furniture | Interior redesign of an empty-room photo can add furniture (a preview, not a staging product) | Yes (empty room design) |
| Floor and wall changes | Yes (Floor and Walls tools) | Yes (new flooring, new walls) |
| Remove objects | Yes | Yes (declutter and furniture removal) |
| Paint one surface with an exact color | Yes (12 swatches plus the iOS color picker, which accepts hex) | Not listed as a separate tool |
| Chat-based design agent | No (short text prompt up to about 500 characters) | Yes |
| App languages | 6 | 32 |
| Pricing (US) | Free to try, then Pro ($9.99/week or $39.99/year in US; 3-day free trial on annual) | Free download; subscriptions from $5.99/week or $14.99-$59.99/year, or $49.99 lifetime |
Where DecAI shines
- Large catalog: the App Store listing advertises 100+ styles
- AI design agent: describe changes in plain language and refine by chat
- Empty-room design that fills a vacant room with furniture, lighting and decor
- Covers exteriors and gardens, plus walls, flooring, furniture swap and declutter tools
- Available in English and 31 other languages, with a one-time lifetime purchase option
Where DecAI falls short
- No dedicated tool for repainting one surface (walls, ceiling, cabinets, doors, trim or siding) in an exact color; RivAI's Paint tool does this
- No explicit Keep Structure vs Full Renovation switch in the listing
- Many overlapping price points in the in-app purchase list, which makes the real price harder to read
Learn more about RivAI: AI room design app, AI interior design and best AI interior design apps.
FAQ
Is DecAI free?
DecAI is a free download with in-app purchases; its US App Store listing shows weekly plans from $5.99, yearly plans from $14.99 to $59.99 and a $49.99 lifetime option (checked 2026-10-09). RivAI is free to try, then Pro is $9.99 a week or $39.99 a year in the US, and the annual plan starts with a 3-day free trial.
Does DecAI redesign exteriors?
Yes. DecAI's listing includes exterior design for house photos and garden design for yards and patios. RivAI also redesigns exteriors and gardens, plus patios, pool areas, driveways and front yards, from a single photo.
Which is better for paint color changes, RivAI or DecAI?
RivAI, if you want one exact color. Its Paint tool repaints a single surface such as walls, ceiling, cabinets or trim using 12 swatches or the iOS color picker, which accepts a hex code. DecAI's walls tool previews colors, textures and materials more broadly.
Which app has more styles?
DecAI advertises 100+ styles; RivAI has 43, including 6 seasonal looks. If breadth matters most, DecAI wins on count. RivAI focuses on targeted edits after the render, such as Paint, Replace and Remove Objects.
More comparisons
Last updated 2026-10-09
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