Age by Serial Number vs All Done

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Age by Serial Number compared with All Done
Detail	Age by Serial Number	All Done
What it does	Find how old a water heater, furnace or air conditioner is from its serial number	Free online productivity, career and PDF tools
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	PK
Pricing model	Free	Free
Pricing	Not given	Not given
Key features	Water heater serial number decoders for Bradford White, A.O. Smith, State, American, Whirlpool, Rheem, Ruud, Lochinvar Furnace and air conditioner decoders for Goodman, Amana, Lennox, Carrier, Trane, American Standard Water heater and furnace error code lookups Water heater sizing calculator for tank and tankless models Rheem water heater status light meanings Goodman furnace LED flash code reference Rinnai V53De tankless water heater code lookup Rheem tankless water heater code lookup	AI Writing Assistant for drafting and rewriting text Background Remover for one-click image editing Image Upscaler to sharpen and enlarge images QR Code Generator for custom QR codes Screen Recorder for recording screen, window or tab Video Trimmer and MP3 Converter PDF Editor (PDFpad) for desktop with no watermarks AI Presentation Builder with drag-and-drop editor Professional ATS CV Builder New tools added weekly
What makes it different	Independent reference not affiliated with or endorsed by any manufacturer Distinguishes manufacture date from installation date and emphasizes condition and maintenance over age Covers safety guidance including gas smell warnings and professional contractor recommendations	No sign-up or account required to use tools Privacy-first approach with secure file processing and no permanent storage Mobile-friendly tools that work across all devices Fast and easy to use with no learning curve AI-powered features integrated into productivity tools
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	1 no change since last check	1 −4 (down) since last check
Trust Flow (Majestic)	1	4
Citation Flow (Majestic)	17	24
Referring domains (Majestic)	4	8

4 details filled in for both companies.

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