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Head-to-head · Customer Lifetime Value Software

Theta vs Siftmo

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Theta #3 in Customer Lifetime Value Software 9.2/10 Pricing on request ✓ 4 of 4 features Visit Theta
Siftmo #6 in Customer Lifetime Value Software 8.9/10 Free plan · 7-day trial Free planFree trial✓ 3 of 4 features Visit Siftmo

Theta leads on 0 checks, Siftmo on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreTheta · 9.2/10
  • Free planonly Siftmo
  • Free trialonly Siftmo
  • Most featuresTheta · 4 of 4

Theta scores higher on our rubric for customer lifetime value software: 9.2 against 8.9 out of 10; our editors rank them #3 and #6.

Theta is the better fit for advanced CLV modeling teams. Siftmo is the better fit for budget-conscious Shopify teams.

  • Theta fits best

    Advanced CLV modeling teams

  • Siftmo fits best

    Budget-conscious Shopify teams

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Theta 9.2/10 Visit ↗ Siftmo 8.9/10 Visit ↗
At a glance
Editor score 9.2 8.9
Ranking #3 in Customer Lifetime Value Software #6 in Customer Lifetime Value Software
Best for Advanced CLV modeling teams Budget-conscious Shopify teams
Pricing model Paid Free plan + paid
Starting price Pricing on request —
Free plan Not checked yet ✓ (best)
Free trial — 7 days
Deployment Cloud Cloud, Browser extension
Platforms Web Web
Built for Mid-market, Enterprise Solo, Small business, Mid-market
Features Theta 4/4 · Siftmo 3/4
Predictive CLV ✓ (best) Not checked yet
Profitability metrics ✓ ✓
Cohort analysis ✓ ✓
Customer segmentation ✓ ✓
Specs
Forecast horizon Not stated Not stated
Data refresh Real-time Real-time
Our review
Pros
  • Combines predictive CLV, profitability, CLV-to-CAC, and payback analysis
  • Analyzes customers, cohorts, and microsegments with value-based segmentation
  • Adds incrementality testing and near-real-time CLV API access
  • Free plan includes all KPIs, segments, exports, and unlimited users.
  • Analyzes CLV, cohorts, profitability, products, variants, and purchase behavior.
  • Connects Shopify, Google Analytics, and Facebook Ads with real-time reporting.
Cons
  • Pricing requires a sales conversation
  • CLV Ultra is presented as an early-access pilot
  • Customized services may require more involvement than packaged software
  • The free plan is limited to 50 monthly orders.
  • Higher order volumes require paid monthly tiers up to $229 per month.
  • Its listed platform is web, with integrations centered on three services.
Our verdict

Theta is a customer lifetime value and predictive customer analytics offering for corporations and investment firms. It supports decisions across customer acquisition, retention, repeat purchasing, spending, profitability, due diligence,…

Read the review →

Siftmo is a Shopify-focused customer analytics platform for merchants and ecommerce teams that want customer lifetime value, retention, purchasing behavior, and product economics in one dashboard. Its reporting covers CLV and CLV…

Read the review →
  1. ThetaCustomer Lifetime Value Software 9.2Pricing on request
  2. SiftmoCustomer Lifetime Value Software 8.9Free plan · 7-day trial

Strengths and trade-offs

  • Theta — where it wins

    • Combines predictive CLV, profitability, CLV-to-CAC, and payback analysis
    • Analyzes customers, cohorts, and microsegments with value-based segmentation
    • Adds incrementality testing and near-real-time CLV API access

    Where it doesn't

    • Pricing requires a sales conversation
    • CLV Ultra is presented as an early-access pilot
    • Customized services may require more involvement than packaged software

  • Siftmo — where it wins

    • Free plan includes all KPIs, segments, exports, and unlimited users.
    • Analyzes CLV, cohorts, profitability, products, variants, and purchase behavior.
    • Connects Shopify, Google Analytics, and Facebook Ads with real-time reporting.

    Where it doesn't

    • The free plan is limited to 50 monthly orders.
    • Higher order volumes require paid monthly tiers up to $229 per month.
    • Its listed platform is web, with integrations centered on three services.
  • Theta9.2/10 · Pricing on request

    A deep CLV and profitability toolkit for teams making advanced customer-value decisions.

    Visit ThetaFull verdict →
  • Siftmo8.9/10 · Free plan · 7-day trial

    A Shopify-focused CLV dashboard with broad analytics and low entry pricing.

    Visit SiftmoFull verdict →

More comparisons

All customer lifetime value software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update