Blue Def Decoder
Mako Technology Labs
Getting the latest details from the App Store…
Mako Technology Labs
Getting the latest details from the App Store…
Easily check the freshness of your Diesel Exhaust Fluid (DEF) with Blue Def Decoder. Enter the 5–11 character code printed on your DEF container — whether it’s the short date section or the full code — and instantly see the manufacturing date and freshness status. Use Blue Def Decoder to: Confirm your DEF hasn’t expired Track shelf life for storage Verify compliance for your vehicle Blue Def Decoder saves you time and removes the guesswork from DEF code verification. Perfect for Sprinter van
Top of Paid · Utilities in United States. Blue Def Decoder is #80 there. Changes are over 7 days.
How the app presents itself on the App Store. Select a screenshot to open it full size.
Version 1.3 · 13 Sep 2026 · 1 month ago
What's New in 1.3.0 • Redesigned interface: cleaner, more focused screens across the Decoder, History, and Settings tabs. • Try it faster: tap example codes right in the input field to see decoding in action without typing. • Clearer results: your freshness call (Good, Usable, Check, Replace) is front and center, with the full decoding breakdown tucked into an expandable section so results aren't buried in detail. • Easier-to-scan history: saved codes now show freshness and format status at a glance, with a clear badge when a code has more than one possible date. • Reorganized Settings: freshness thresholds, decoder preferences, and data management are now grouped into clear sections.
Every chart this app is in right now, best position first.
| Chart | Rank | 24 h | 7 days | Best | Days on chart |
|---|---|---|---|---|---|
| United States· Paid · Utilities | #80 | New entry | Change unknown | #80 | 1 |
Higher on the chart is better: #1 is at the top.
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United States · Paid · Utilities: best #80, latest #80, over 14 snapshots since 8 Oct. No snapshots from 8 Oct to 9 Oct, on 9 Oct, on 10 Oct, on 11 Oct, on 12 Oct, and on 13 Oct; the line joins the snapshots on either side.
Entries, big moves, #1s and new versions we've recorded.
