Attentive SMS Marketing vs OneText: Shopify Performance Comparison
Attentive SMS Marketing wins with Grade B vs Grade C — a one-grade performance difference that compounds on mobile devices.
Both apps provide SMS marketing and text message campaigns functionality for Shopify stores. This page presents StackConflict’s independent lab results for both — measured in a clean-room environment with no other apps installed.
Head-to-Head Metrics
| Metric | Attentive SMS Marketing | OneText | Faster |
|---|---|---|---|
| Overall Grade | B | C | Attentive SMS Marketing |
| JS Payload | 57.87 KB | 249.64 KB | Attentive SMS Marketing |
| CPU Desktop | 30 ms | 32 ms | Attentive SMS Marketing |
| CPU Mobile | 129 ms | 145 ms | Attentive SMS Marketing |
| Layout Shift | 0.0 | 0.0 | Attentive SMS Marketing |
Mobile CPU measured with 4× CDP throttle (mid-range Android). Tested 2026-05-31.
Attentive SMS Marketing — The Faster Option (Grade B)
Attentive SMS Marketing scores Grade B with a JS payload of 57.87 KB and 30 ms desktop CPU execution. Mobile CPU: 129 ms. It passes every StackConflict threshold for payload, CPU, and layout stability — making it safe to install on any storefront including mobile-first stores where Time-to-Interactive directly impacts conversion.
View full Attentive SMS Marketing speed report →
OneText — The Heavier Option (Grade C)
OneText scores Grade C with a JS payload of 249.64 KB and 32 ms desktop CPU execution. Mobile CPU: 145 ms. This places it in the heavier half of StackConflict’s benchmark dataset — merchants running mobile-first stores should evaluate whether the feature value justifies the performance tradeoff.
View full OneText speed report →
When to Choose Attentive SMS Marketing
- You need its specific features and can monitor its mobile impact
- Your other apps are lightweight (Grade A) so there is headroom
- You are on desktop-skewed traffic where CPU cost matters less
When to Choose OneText
- Its unique feature set has no lighter equivalent in StackConflict’s database
- Your store traffic is predominantly desktop
- You have already removed or lightened other heavy scripts to compensate
Performance Verdict
Winner: Attentive SMS Marketing — Attentive SMS Marketing wins with Grade B vs Grade C — a one-grade performance difference that compounds on mobile devices.
Install Attentive SMS Marketing →
About This Test
StackConflict measures each Shopify app in an isolated clean-room environment — a single development store, no other scripts, Playwright-controlled browser. V8 CPU cost is the ScriptDuration delta before and after injection. CLS is captured from the same browser session. Results represent the median of three independent runs with outliers removed.
Data from the StackConflict Lab. Last updated 2026-05-31.