APIbenchmarks

Head to head

Split vs Unleash

As a feature flag API, Split rates higher on the APIbenchmarks Index, 81.1 to 77.9, a 3.2-point gap. Here is how they compare on each criterion.

Split logo
Split
Harness
B
81.1ABI / 100

Feature management + experimentation (Harness FME)

Unleash logo
Unleash
Unleash
B
77.9ABI / 100

Self-hosted, privacy-first open-source feature management

Criterion by criterion

CriterionSplitUnleash
Documentation & DX
80
80
Reliability
84
76
Ecosystem & SDKs
82
82
Accessibility
78
72
APIbenchmarks Index81.177.9

Specifications

SplitUnleash
Best forFeature management + experimentation (Harness FME)Self-hosted, privacy-first open-source feature management
Free tierFree Developer tier: up to 10 seats, 50 feature flagsOSS self-host free; cloud free trial only (OSS edition EOL 2026-12-31)
PricingPer-seat (usage-based at scale)Per-seat (cloud) / OSS self-host
Official SDKs12 languages12 languages

Is Split better than Unleash?

On the APIbenchmarks Index, Split rates higher (81.1 vs 77.9). It leads on the four weighted criteria, but price is reported separately, so the best choice still depends on your budget.