Comparison · 21 merchant reviews read · Updated October 2026
Theme Scientist vs PM Digital
Short answer
Pick PM Digital if you need price tests and template tests and you want to start on a free plan.
 Theme Scientist |  PM Digital | |
|---|---|---|
| App Store rating | 4★ (13) | 4.2★ (8) |
| Cost at your traffic | $29.99+/moYour traffic is above the listed limits. Tester Pro is the floor, expect a custom quote. | FreeCheapest plan: Free Testing. |
| How price scales | Starts at $9.99/month with a 14-day free trial, and the price goes up as your store's monthly order limit increases (50, 250, or 500 orders). | Free plan with 1 test of each type, or a flat $49/month for unlimited testing; a free trial is available but its length isn't stated. |
| Launched | March 5, 2020 | February 27, 2024 |
| App Store listing | App Store listing |
PM Digital starts at $0 a month, Theme Scientist at $9.99
Theme Scientist
- Tester$9.99/mo
- Tester+$19.99/mo
- Tester Pro$29.99/mo
PM Digital
- Free TestingFree
- Pro CRO$49/mo
Only PM Digital can run price tests
Read from each app's listing. A dot means the listing says it can do it.
| Theme Scientist | PM Digital | |
|---|---|---|
| Price tests | ○ | ● |
| Theme tests | ● | ● |
| Template tests | ○ | ● |
| Content tests | ● | ● |
| URL split tests | ○ | ● |
| Visual editor | ○ | ● |
| Audience targeting | ○ | ● |
| Free plan | ○ | ● |
What reviewers complain about
None of these apps has 20+ reviews yet, so there's not enough to compare complaint rates.
Theme Scientist replies to 85% of reviews, PM Digital to 75%
| Theme Scientist | PM Digital | |
|---|---|---|
| Reviews with a developer reply | 85% | 75% |
| Praise support | 69.2% | 12.5% |
| Complain about support | 7.7% | 12.5% |
Results merchants put a number on
- over $50k a year revenue with Theme Scientist, testing multiple growth ideas. “increase our revenue by over $50k a year”
- double conversion rate with Theme Scientist. “double, yes double our conversion rates in 3 months”
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