Choose TrendBoss
Your watchlist spans six networks, Facebook matters, or you need an ongoing free research workspace with source-level evidence.
SANDCASTLES ALTERNATIVE
A Sandcastles alternative for cross-platform social research
Compare TrendBoss and Sandcastles for social content research, creator-relative outliers, short-form video analysis, source capture and original drafting.
THE SHORT ANSWER
TrendBoss is a Sandcastles alternative for researchers who need Facebook, LinkedIn and X alongside Instagram, TikTok and YouTube, with a private source-linked library and explicit evidence confidence. Sandcastles is the stronger specialist when your workflow centres on discovering and scripting viral short-form video at database scale.
THE SPECIFIC PROBLEM
Choose the research surface before the feature list
Social research can mean two different jobs: searching a large database of proven short-form videos, or building a private evidence library from the accounts and posts that matter to your market.
Sandcastles specialises in Instagram, TikTok and YouTube Shorts. TrendBoss spans six networks and is designed to keep the source, metric coverage, creator baseline and original drafting step together.
REAL WORKFLOW
A real TrendBoss workflow
- 01
Choose the social voices
Define the accounts shaping your audience across Facebook, Instagram, LinkedIn, TikTok, YouTube or X.
- 02
Capture the evidence
Save visible accounts and posts with their original URLs through the Chrome extension.
- 03
Find creator-relative outliers
Review posts at or above 1.25 times each creator's captured median, with the evidence state visible.
- 04
Create an original version
Analyse the source pattern and draft for Facebook, Instagram, LinkedIn, X or TikTok without auto-publishing.
PRODUCT EVIDENCE
The method running on retained social research
The live TrendBoss workspace supports research across six social networks. Its retained Facebook set contains 66 source-linked posts, including 30 with usable engagement metrics and ten qualified creator-relative outliers as of 28 July 2026.
HONEST COMPARISON
TrendBoss vs Sandcastles at a glance
| Criterion | TrendBoss | Sandcastles |
|---|---|---|
| Primary scope | Source-linked social post research across six networks | Viral short-form video research and scripting |
| Networks | Facebook, Instagram, LinkedIn, TikTok, YouTube and X | Instagram, TikTok and YouTube Shorts |
| Discovery model | Your private captured library with creator-relative lift | Database with millions of validated video outliers and curated competitor feeds |
| Creative output | Editable original drafts for five social platforms | Hooks, transcripts, analysis and short-form video scripts |
| Free access | Ongoing Free plan: 3 accounts and 30 posts per month | Free trial; ongoing paid plans use monthly credits |
| Current paid entry | $11 USD monthly founding price | $49 USD monthly or $39 monthly billed yearly |
Choose Sandcastles if short-form video is the business, you want database-scale discovery, transcripts and a purpose-built video scriptwriter. Choose TrendBoss if your research crosses text, image and video networks, or you want a private source library with explicit evidence gaps. Sandcastles details were checked against its official site on 29 July 2026. Verify the current details on the official Sandcastles site.
WHERE IT FITS
Use the tool for the decision it is built to support
Choose Sandcastles
Your priority is Instagram Reels, TikTok and YouTube Shorts, with deep video analysis and rapid script production.
Test the research decision
Use the same niche and ask which product gets you from public performance to a defensible original idea with fewer gaps.
FREE PLAN · NO CARD
Test the workflow with your own sources.
Track up to three accounts and save 30 posts per month on the Free plan.
FAQS
Questions before you choose
Direct answers based on current product behaviour and public competitor information.
Is TrendBoss cheaper than Sandcastles?
At prices checked on 29 July 2026, TrendBoss has an ongoing Free plan and an $11 USD monthly founding price. Sandcastles lists Pro at $49 monthly or $39 per month when billed yearly. Verify current pricing before buying.
Does Sandcastles support Facebook?
Sandcastles' official site centres its channel discovery on Instagram, TikTok and YouTube Shorts. TrendBoss includes Facebook research alongside five other networks.
Is TrendBoss better for short-form video scripts?
Not necessarily. Sandcastles is purpose-built around short-form video discovery, transcripts, hooks and scriptwriting. TrendBoss is broader across social post formats and networks.
Does TrendBoss include a viral-video database?
TrendBoss builds a private library from the sources you choose to capture. It does not claim Sandcastles' database of millions of validated video outliers.
Can I try TrendBoss without a credit card?
Yes. The Free plan includes up to three tracked accounts and 30 saved posts per month. No card is required.
Does TrendBoss guarantee that a post will go viral?
No. TrendBoss helps you identify and study unusual past performance. It does not predict or guarantee future reach.
KEEP RESEARCHING
Related guides and evidence
FREE PLAN · NO CARD
Build a social research library you can verify.
Track up to three accounts and save 30 posts per month on the Free plan.