Side-by-side comparison
Configure custom authors and easily update the author of any of your blog articles
Automatically Generate, Schedule, and Publish Multilingual SEO-optimized Blog Posts with AI.
| Metric | Custom Authors | FastBlog | AI SEO Blog Writer |
|---|---|---|
| Rating | 5.0 ★ | 5.0 ★ |
| Total reviews | 2 | ★ 8 |
| Free plan | — | — |
| Pricing | $7.99/month | ★ From $0.99/month |
| Pricing tiers | 1 tier | ★ 3 tiers |
| Listed features | 4 | ★ 5 |
| Languages | 1 supported |
On the measured data here, FastBlog leads on more dimensions (3 vs 1). Pick Custom Authors if one of the points where it leads is what you need.
Pricing differs significantly: FastBlog | AI SEO Blog Writer at From $0.99/month vs Custom Authors at $7.99/month — about 8.1x on the listed entry price.
Built only from the Shopify App Store listing data shown on this page. AppRanks does not accept payment to influence comparisons. Read the methodology
Read each app's audit: Custom Authors audit • FastBlog | AI SEO Blog Writer audit
| Field | Custom Authors | FastBlog | AI SEO Blog Writer |
|---|---|---|
| Tagline | ||
| Listing audit | 79/100 listing audit | 92/100 listing audit |
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer |
| 11 supported |
| Listed since | Sep 2019 | Dec 2025 |
|---|
| Listed |
|---|
None
| Keyword | Custom Authors | FastBlog | AI SEO Blog Writer |
|---|---|---|
| blog writer | Not ranked | #10 |
| seo blog | Not ranked | #14 |
| ai blog | Not ranked | #22 |
| customer engagement chatbot | #218 | Not ranked |
| customer service chatbot | #219 | Not ranked |
Neither Custom Authors nor FastBlog | AI SEO Blog Writer lists a free plan. Custom Authors lists no paid plan with a published price; FastBlog | AI SEO Blog Writer lists no paid plan with a published price. Prices are as listed on the Shopify App Store; check what each tier includes in the Pricing section above.
Custom Authors (5.0★, 2 reviews) and FastBlog | AI SEO Blog Writer (5.0★, 8 reviews) are essentially tied on rating. Look at review velocity and individual reviewer quotes — both visible on each app's detail page — to differentiate.
AppRanks cannot separate these two on rating — both sit at 5.0★. FastBlog | AI SEO Blog Writer does carry the larger published review base (8 vs 2). Read both apps' detail pages for the feature breakdown and recent listing changes.
Both apps are one-click installs from the Shopify App Store. AppRanks doesn't measure setup time directly; FastBlog | AI SEO Blog Writer has more published reviews to read for user-reported install experience (8 vs 2).
AppRanks cannot say which fits a larger or smaller operation — there is no store-size measurement in the Shopify App Store data. What it can show: Custom Authors has 2 published reviews; FastBlog | AI SEO Blog Writer has 8 published reviews. Compare plan limits and pricing tiers against your own volume.
Migration support varies by app and category. Custom Authors and FastBlog | AI SEO Blog Writer both publish their export options on their marketplace listing pages (or in their support docs); some apps offer one-click import from competitors, others require CSV. The fastest check: search "import from Custom Authors" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.