45
Grade F
by klaviyoupdated 2026-05-29🙈The Troublemaker

Powerful marketing tools trapped in a buggy WordPress bridge.

DecliningPoor rating
45/100

Powerful marketing capabilities are undermined by frequent bugs and poor performance.

Loved14/40
Trustworthy11/15
Fair & Honest13/15
Maintained18/18
Momentum2/12
Composite 58, adjusted to 45 (×0.78) for a low verified rating or signs of review manipulation.
Active installs
~150,000
our estimate · wp.org shows 100k+
Rating
2.8
24 ratings
Trend · vs a year ago
-32%
Declining fast
1,357 → 926 installs/day
!

What to watch out for

  • MAJORverified rating is 2.95★
  • MINORreviews unevenly distributed over time
  • MINORdownloads down 32% vs a year ago

Downloads over time

real new installs per day · release spikes shown separately from the trend
2025-04-30 · 5,862 · organic2025-05-01 · 1,484 · organic2025-05-02 · 1,251 · organic2025-05-03 · 931 · organic2025-05-04 · 918 · organic2025-05-05 · 1,545 · organic2025-05-06 · 1,581 · organic2025-05-07 · 1,516 · organic2025-05-08 · 1,345 · organic2025-05-09 · 1,101 · organic2025-05-10 · 760 · organic2025-05-11 · 735 · organic2025-05-12 · 1,375 · organic2025-05-13 · 1,262 · organic2025-05-14 · 1,377 · organic2025-05-15 · 1,208 · organic2025-05-16 · 996 · organic2025-05-17 · 789 · organic2025-05-18 · 751 · organic2025-05-19 · 1,487 · organic2025-05-20 · 1,720 · organic2025-05-21 · 1,622 · organic2025-05-22 · 1,521 · organic2025-05-23 · 1,334 · organic2025-05-24 · 1,043 · organic2025-05-25 · 1,029 · organic2025-05-26 · 1,585 · organic2025-05-27 · 1,731 · organic2025-05-28 · 1,630 · organic2025-05-29 · 1,417 · organic2025-05-30 · 1,337 · organic2025-05-31 · 1,040 · organic2025-06-01 · 969 · organic2025-06-02 · 1,338 · spike2025-06-03 · 13,885 · spike2025-06-04 · 10,510 · spike2025-06-05 · 3,161 · spike2025-06-06 · 2,169 · tail2025-06-07 · 1,466 · tail2025-06-08 · 1,486 · tail2025-06-09 · 2,427 · organic2025-06-10 · 3,045 · spike2025-06-11 · 2,234 · tail2025-06-12 · 1,995 · tail2025-06-13 · 1,614 · tail2025-06-14 · 1,157 · organic2025-06-15 · 1,040 · organic2025-06-16 · 1,840 · organic2025-06-17 · 1,784 · organic2025-06-18 · 1,672 · organic2025-06-19 · 1,625 · organic2025-06-20 · 1,346 · spike2025-06-21 · 1,000 · spike2025-06-22 · 952 · organic2025-06-23 · 11,520 · spike2025-06-24 · 13,619 · spike2025-06-25 · 3,152 · tail2025-06-26 · 2,564 · tail2025-06-27 · 2,069 · tail2025-06-28 · 1,406 · organic2025-06-29 · 1,354 · organic2025-06-30 · 2,410 · organic2025-07-01 · 2,164 · organic2025-07-02 · 2,008 · organic2025-07-03 · 1,795 · organic2025-07-04 · 1,522 · organic2025-07-05 · 1,036 · organic2025-07-06 · 1,031 · organic2025-07-07 · 1,756 · organic2025-07-08 · 1,790 · organic2025-07-09 · 1,782 · organic2025-07-10 · 1,593 · organic2025-07-11 · 1,404 · organic2025-07-12 · 1,127 · organic2025-07-13 · 1,039 · organic2025-07-14 · 1,589 · organic2025-07-15 · 6,418 · spike2025-07-16 · 1,817 · tail2025-07-17 · 1,512 · organic2025-07-18 · 1,384 · organic2025-07-19 · 1,017 · organic2025-07-20 · 991 · organic2025-07-21 · 1,517 · organic2025-07-22 · 1,513 · organic2025-07-23 · 1,477 · organic2025-07-24 · 1,461 · organic2025-07-25 · 1,135 · organic2025-07-26 · 966 · organic2025-07-27 · 882 · organic2025-07-28 · 1,338 · organic2025-07-29 · 1,337 · organic2025-07-30 · 1,324 · organic2025-07-31 · 1,276 · organic2025-08-01 · 1,085 · organic2025-08-02 · 864 · organic2025-08-03 · 915 · organic2025-08-04 · 1,208 · organic2025-08-05 · 1,307 · organic2025-08-06 · 1,209 · organic2025-08-07 · 1,298 · organic2025-08-08 · 1,152 · organic2025-08-09 · 885 · organic2025-08-10 · 865 · organic2025-08-11 · 1,321 · organic2025-08-12 · 1,283 · organic2025-08-13 · 1,349 · organic2025-08-14 · 1,234 · organic2025-08-15 · 1,146 · organic2025-08-16 · 980 · organic2025-08-17 · 932 · organic2025-08-18 · 1,280 · organic2025-08-19 · 1,375 · organic2025-08-20 · 1,390 · organic2025-08-21 · 1,082 · organic2025-08-22 · 852 · organic2025-08-23 · 668 · organic2025-08-24 · 638 · organic2025-08-25 · 941 · organic2025-08-26 · 947 · organic2025-08-27 · 891 · organic2025-08-28 · 901 · organic2025-08-29 · 789 · organic2025-08-30 · 807 · organic2025-08-31 · 769 · organic2025-09-01 · 1,396 · organic2025-09-02 · 919 · organic2025-09-03 · 922 · organic2025-09-04 · 892 · organic2025-09-05 · 817 · organic2025-09-06 · 625 · organic2025-09-07 · 610 · organic2025-09-08 · 882 · organic2025-09-09 · 925 · organic2025-09-10 · 903 · organic2025-09-11 · 966 · spike2025-09-12 · 839 · spike2025-09-13 · 560 · organic2025-09-14 · 604 · organic2025-09-15 · 12,062 · spike2025-09-16 · 16,584 · spike2025-09-17 · 3,230 · spike2025-09-18 · 2,436 · spike2025-09-19 · 2,034 · spike2025-09-20 · 1,283 · tail2025-09-21 · 1,252 · tail2025-09-22 · 2,217 · spike2025-09-23 · 1,941 · tail2025-09-24 · 1,669 · tail2025-09-25 · 1,592 · tail2025-09-26 · 1,383 · organic2025-09-27 · 947 · organic2025-09-28 · 898 · organic2025-09-29 · 1,561 · organic2025-09-30 · 3,170 · spike2025-10-01 · 5,560 · spike2025-10-02 · 1,307 · tail2025-10-03 · 1,173 · tail2025-10-04 · 888 · organic2025-10-05 · 817 · organic2025-10-06 · 1,451 · organic2025-10-07 · 1,243 · organic2025-10-08 · 1,328 · organic2025-10-09 · 1,316 · organic2025-10-10 · 1,007 · organic2025-10-11 · 770 · organic2025-10-12 · 791 · organic2025-10-13 · 1,193 · organic2025-10-14 · 1,146 · organic2025-10-15 · 1,261 · spike2025-10-16 · 1,269 · spike2025-10-17 · 1,073 · organic2025-10-18 · 699 · organic2025-10-19 · 728 · organic2025-10-20 · 1,160 · organic2025-10-21 · 1,045 · organic2025-10-22 · 1,079 · organic2025-10-23 · 1,021 · organic2025-10-24 · 884 · organic2025-10-25 · 698 · organic2025-10-26 · 633 · organic2025-10-27 · 1,025 · organic2025-10-28 · 1,119 · organic2025-10-29 · 1,103 · organic2025-10-30 · 966 · organic2025-10-31 · 880 · organic2025-11-01 · 704 · organic2025-11-02 · 679 · organic2025-11-03 · 1,010 · organic2025-11-04 · 9,472 · spike2025-11-05 · 20,753 · spike2025-11-06 · 3,191 · spike2025-11-07 · 2,367 · spike2025-11-08 · 1,524 · tail2025-11-09 · 1,365 · tail2025-11-10 · 2,594 · spike2025-11-11 · 2,088 · tail2025-11-12 · 2,049 · tail2025-11-13 · 1,889 · tail2025-11-14 · 1,471 · organic2025-11-15 · 1,031 · organic2025-11-16 · 967 · organic2025-11-17 · 1,681 · organic2025-11-18 · 1,631 · organic2025-11-19 · 1,494 · organic2025-11-20 · 1,384 · organic2025-11-21 · 1,193 · organic2025-11-22 · 872 · organic2025-11-23 · 831 · organic2025-11-24 · 1,452 · organic2025-11-25 · 1,343 · organic2025-11-26 · 1,235 · organic2025-11-27 · 1,234 · organic2025-11-28 · 1,081 · organic2025-11-29 · 783 · organic2025-11-30 · 763 · organic2025-12-01 · 1,301 · organic2025-12-02 · 1,215 · spike2025-12-03 · 2,826 · spike2025-12-04 · 5,058 · spike2025-12-05 · 1,058 · organic2025-12-06 · 705 · organic2025-12-07 · 718 · organic2025-12-08 · 1,061 · organic2025-12-09 · 1,286 · organic2025-12-10 · 1,200 · organic2025-12-11 · 1,033 · organic2025-12-12 · 919 · organic2025-12-13 · 764 · organic2025-12-14 · 691 · organic2025-12-15 · 1,080 · organic2025-12-16 · 1,063 · organic2025-12-17 · 1,040 · organic2025-12-18 · 916 · organic2025-12-19 · 854 · organic2025-12-20 · 552 · organic2025-12-21 · 615 · organic2025-12-22 · 887 · organic2025-12-23 · 856 · organic2025-12-24 · 717 · organic2025-12-25 · 539 · organic2025-12-26 · 584 · organic2025-12-27 · 616 · organic2025-12-28 · 591 · organic2025-12-29 · 780 · organic2025-12-30 · 749 · organic2025-12-31 · 576 · organic2026-01-01 · 504 · organic2026-01-02 · 684 · organic2026-01-03 · 575 · organic2026-01-04 · 624 · organic2026-01-05 · 854 · organic2026-01-06 · 969 · organic2026-01-07 · 959 · organic2026-01-08 · 853 · organic2026-01-09 · 742 · organic2026-01-10 · 578 · organic2026-01-11 · 528 · organic2026-01-12 · 878 · organic2026-01-13 · 938 · organic2026-01-14 · 931 · organic2026-01-15 · 908 · organic2026-01-16 · 788 · organic2026-01-17 · 537 · organic2026-01-18 · 531 · organic2026-01-19 · 1,176 · organic2026-01-20 · 907 · organic2026-01-21 · 924 · organic2026-01-22 · 862 · organic2026-01-23 · 757 · organic2026-01-24 · 509 · organic2026-01-25 · 486 · organic2026-01-26 · 823 · organic2026-01-27 · 869 · organic2026-01-28 · 837 · organic2026-01-29 · 800 · organic2026-01-30 · 686 · organic2026-01-31 · 533 · organic2026-02-01 · 545 · organic2026-02-02 · 786 · organic2026-02-03 · 836 · organic2026-02-04 · 905 · organic2026-02-05 · 816 · organic2026-02-06 · 681 · organic2026-02-07 · 566 · organic2026-02-08 · 535 · organic2026-02-09 · 788 · organic2026-02-10 · 847 · organic2026-02-11 · 852 · organic2026-02-12 · 767 · organic2026-02-13 · 663 · organic2026-02-14 · 512 · organic2026-02-15 · 530 · organic2026-02-16 · 771 · organic2026-02-17 · 819 · organic2026-02-18 · 793 · organic2026-02-19 · 709 · organic2026-02-20 · 676 · organic2026-02-21 · 532 · organic2026-02-22 · 530 · organic2026-02-23 · 813 · organic2026-02-24 · 805 · organic2026-02-25 · 737 · organic2026-02-26 · 718 · organic2026-02-27 · 675 · organic2026-02-28 · 458 · organic2026-03-01 · 426 · organic2026-03-02 · 736 · organic2026-03-03 · 789 · organic2026-03-04 · 764 · organic2026-03-05 · 790 · organic2026-03-06 · 677 · organic2026-03-07 · 497 · organic2026-03-08 · 466 · spike2026-03-09 · 14,963 · spike2026-03-10 · 21,076 · spike2026-03-11 · 5,031 · spike2026-03-12 · 2,506 · spike2026-03-13 · 1,812 · spike2026-03-14 · 1,140 · tail2026-03-15 · 1,060 · tail2026-03-16 · 2,010 · spike2026-03-17 · 1,653 · tail2026-03-18 · 1,432 · tail2026-03-19 · 1,429 · tail2026-03-20 · 1,142 · organic2026-03-21 · 829 · organic2026-03-22 · 716 · organic2026-03-23 · 1,213 · organic2026-03-24 · 1,331 · organic2026-03-25 · 1,228 · organic2026-03-26 · 1,257 · organic2026-03-27 · 1,007 · organic2026-03-28 · 728 · organic2026-03-29 · 707 · organic2026-03-30 · 1,193 · organic2026-03-31 · 1,188 · organic2026-04-01 · 1,111 · organic2026-04-02 · 1,002 · organic2026-04-03 · 866 · organic2026-04-04 · 640 · organic2026-04-05 · 600 · organic2026-04-06 · 902 · organic2026-04-07 · 1,025 · organic2026-04-08 · 1,056 · organic2026-04-09 · 929 · organic2026-04-10 · 929 · organic2026-04-11 · 633 · organic2026-04-12 · 591 · organic2026-04-13 · 987 · organic2026-04-14 · 990 · organic2026-04-15 · 1,026 · spike2026-04-16 · 1,019 · spike2026-04-17 · 827 · organic2026-04-18 · 588 · organic2026-04-19 · 587 · organic2026-04-20 · 935 · organic2026-04-21 · 961 · organic2026-04-22 · 934 · organic2026-04-23 · 860 · organic2026-04-24 · 743 · organic2026-04-25 · 602 · organic2026-04-26 · 580 · organic2026-04-27 · 812 · organic2026-04-28 · 945 · organic2026-04-29 · 966 · organic2026-04-30 · 923 · organic2026-05-01 · 702 · spike2026-05-02 · 586 · spike2026-05-03 · 590 · organic2026-05-04 · 22,435 · spike2026-05-05 · 8,993 · spike2026-05-06 · 2,877 · spike2026-05-07 · 16,184 · spike2026-05-08 · 15,133 · spike2026-05-09 · 1,794 · spike2026-05-10 · 1,518 · tail2026-05-11 · 2,818 · spike2026-05-12 · 2,329 · spike2026-05-13 · 2,029 · spike2026-05-14 · 1,713 · tail2026-05-15 · 1,465 · tail2026-05-16 · 1,021 · tail2026-05-17 · 914 · organic2026-05-18 · 1,637 · organic2026-05-19 · 1,626 · spike2026-05-20 · 1,690 · spike2026-05-21 · 5,038 · spike2026-05-22 · 4,031 · spike2026-05-23 · 803 · organic2026-05-24 · 763 · organic2026-05-25 · 1,106 · organic2026-05-26 · 2,081 · organic2026-05-27 · 1,255 · spike2026-05-28 · 1,245 · spike2026-05-29 · 16,329 · spike2026-05-30 · 12,369 · spike2026-05-31 · 1,979 · tail2026-06-01 · 3,376 · tail2026-06-02 · 2,880 · tail2026-06-03 · 2,161 · organic
2025-04-302025-08-082025-11-162026-02-232026-06-03
organicrelease spikerelease tailorganic trend · 14d rolling median
Declining fast · -32% in the last year
1,357/day a year ago926/day today

Reviews

what people actually say
The Klaviyo WordPress plugin is broadly regarded as unreliable and feature-incomplete, with users citing persistent bugs, performance issues, and poor support, making it difficult to recommend despite Klaviyo's strengths as an email platform overall.
What people like
  • +Klaviyo as an email service provider offers better analytics and overall capability compared to some competitors like Omnisend
  • +Basic WooCommerce integration functions adequately for simple use cases
Common complaints
  • Plugin causes significant website performance and speed degradation×2
  • Forms randomly disappear from the website, requiring a full plugin reinstall to restore×2
  • Plugin switches itself off unexpectedly, disabling email flows; acknowledged by support as a known but unfixed bug×2
  • Compatibility issues with the latest WordPress version and fatal errors triggered by plugin updates×2
  • No support for automated unique/dynamic discount codes, considered a significant missing feature×2
  • WooCommerce integration lacks depth: missing refund amount data, failed order events, and granular order metadata
  • No built-in support for 'Viewed Product' / Browse Abandonment events — requires manual theme file edits
  • No ability to customize which order statuses count as 'fulfilled'
  • No way to hook into or extend the default placed order event with custom metadata
  • Embed/form code does not render correctly on pages — displays raw code instead of the form
  • Connection/authentication is unreliable; no API key fallback when OAuth-style connection fails
  • Support is slow, unhelpful, and relies on copy-paste responses, with agents lacking product knowledge×3
  • Accounts reportedly disabled without clear reason or adequate explanation from support×2
  • Excessive marketing spam emails sent after account registration
  • Plugin described as poorly coded, with server providers reportedly auto-disabling it due to bad code×2
Review trustReviews look organic
  • 2.95★Verified rating — holds steady vs the raw 2.80★
  • 8%One-shot reviewers — most reviewers are active community members
Reviews per month · 5★ vs lower
2023-07-202025-01-102026-06-04
5★ reviews1–4★ reviews
All-time ratings · 24 total
5★
8
4★
2
3★
2
2★
1
1★
11
Latest reviews · 24 analyzed

Releases

recent versions from WordPress.org SVN
  • 2026-05-29v3.8.0
  • 2026-05-19v3.7.5
  • 2026-05-04v3.7.4
  • 2026-03-09v3.7.3
  • 2025-12-02v3.7.2
  • 2025-09-15v3.7.1
  • 2025-06-23v3.7.0
  • 2025-06-03v3.6.0

For developers & the curious

the raw signals behind the grade — none of this is on the friendly summary above

Download signals

Baselines are computed on organic days only — release spikes and their tails are excluded, so they're not inflated by the auto-update wave.

1,106
Baseline · median of last 7 organic days
812
Prior 7-day baseline
1,248
Floor · 25th percentile over 14 days
8,062
Mean release-day peak (30d)
2,161
Latest day · 2026-06-03(organic)
+36.2%
Week-over-week organic trend

Review signals

Concentration and drive-by metrics drive the review-burst and fake-review flags. 30–40% solo reviewers is normal; we only flag the extremes.

17%
Max month share · biggest single 30-day window
1.58
Distribution CV · <0.6 even, >1.5 bursty
33%
5★ share in analyzed sample
8%
Solo reviewers · only this one wp.org activity
-100%
Volume velocity · last 6mo vs prior 6mo
2.79 → 2.95★
Sample avg · raw → solo-filtered