Which caption performs?
Test which caption wins before you post.
AI simulation only. Not a survey of real people.
Why A/B test Instagram captions?
Captions drive engagement beyond the visual
Diverse followers
Your Instagram audience spans ages and backgrounds. See how each segment reacts to your caption.
Boost saves & shares
The right caption drives saves, shares, and comments. Test which version connects best.
Fast results
Get insights in 8 minutes instead of posting and waiting to see what happens.
Test privately
No impact on your feed or algorithm. Test without anyone seeing.
How Instagram caption testing works
Three simple steps to better captions
Paste your caption variants
Enter 2 or 3 caption versions you're deciding between. Up to 2,200 characters each.
We poll 500 simulated Americans
Each persona has unique demographics and worldviews. They react as if scrolling Instagram.
Get your report
See positive/negative/neutral splits by age, education, political leaning, and more.
Simple pricing for Instagram testing
No subscriptions. Pay per test.
Free Preview
See how it works with a smaller sample
- 100 AI persona reactions
- Sex, Age & Urban/Rural breakdowns
- 2 sample audience quotes
- Full demographics in paid
- Results expire in 24h
Up to 3 free tests per week
A/B Test
Compare 2 message variants
- 500 reactions per variant
- Full demographic breakdowns
- 6 sample audience reactions
- CSV export
- 30-day access
A/B/C Test
Test 3 message variants
- 500 reactions per variant
- Full demographic breakdowns
- 6 sample audience reactions
- CSV export
- 30-day access
Test your Instagram captions
Results delivered to your email in about 8 minutes.
Instagram A/B Testing FAQ
Does this test just captions or full posts?
We test the text content—your caption. simulated audience evaluate the writing, tone, and message. Visuals aren't included in the test.
Will this affect my Instagram algorithm?
No. SimAudience tests happen entirely off-platform. Nothing is posted to Instagram.
Can I test hashtag variations?
Yes! Include hashtags in your caption variants to see which combination resonates better with different demographics.
How do I interpret age breakdowns?
Instagram skews younger, but has users across all ages. Pay attention to how your target demographic reacts specifically.
Is my content kept private?
Yes. Your captions are only used for testing and deleted after 30 days. We never share or publish your content.
Can I test Reels captions too?
Absolutely. Test any Instagram text content—feed posts, Reels captions, Stories text, or carousel descriptions.
Important: SimAudience uses simulated audience modeled on demographic data. This is a synthetic simulation, not a survey of real Instagram users. Results should be used for directional guidance only.
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