Every emulator runs the same suite as live AWS DynamoDB in eu-west-2, the 100% ground truth at the top. DynamoDB's behaviour can vary across regions, so the baseline is one named region. The percentage is correctness over the operations a target implements; the scope tag by its version (its unsupported count, or “full coverage”) shows how much of the suite it attempts, so a high score on a narrow surface reads as narrow. The arrow shows movement since the previous run a target was tested in.
95%+
75–95%
under 75%
▲ rose
▼ fell
Biggest moves:
Ministack
+10.4pp
rose 10.4 percentage points
ExtendDB
+4.1pp
rose 4.1 percentage points
Dynalite
-0.9pp
fell 0.9 percentage points
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live (AWS) · full coverage100% ground truthTier 1 100%Tier 2 100%Tier 3 100%
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0.10.0 · 14 unsupported99.6% -0.4pp fell 0.4 percentage pointsTier 1 100.0%Tier 2 100.0%Tier 3 98.6%
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v0.1.1 · 42 unsupported97.9% +4.1pp rose 4.1 percentage pointsTier 1 97.2%Tier 2 97.8%Tier 3 99.1%
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176654570cf2 · full coverage97.4% +10.4pp rose 10.4 percentage pointsTier 1 98.3%Tier 2 93.9%Tier 3 98.1%
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c88ec20bf221 · 9 unsupported92.6% 0.0pp unchangedTier 1 94.1%Tier 2 87.8%Tier 3 93.0%
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2026.5.2 · 8 unsupported88.3% 0.0pp unchangedTier 1 98.6%Tier 2 92.7%Tier 3 68.7%
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d89f8fcc6b1a · 13 unsupported87.0% 0.0pp unchangedTier 1 97.2%Tier 2 89.1%Tier 3 69.2%
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4.0.0 · 67 unsupported82.1% -0.9pp fell 0.9 percentage pointsTier 1 95.5%Tier 2 16.9%Tier 3 79.9%