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TidyBoss vs Ohmlark

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

TidyBoss compared with Ohmlark
DetailTidyBoss logo TidyBossOhmlark logo Ohmlark
What it doesFree home maintenance tools and guides for homeowners Electronics calculators for makers
StageStartup Not given
Founded2025 Not given
Based inCA Not given
Pricing modelFree Freemium
PricingNot given Free: $0 forever. Pro Monthly: $4 per month, cancel anytime. Pro Lifetime: $29 one-time payment.
Key features
  • Appliance age decoder for refrigerators, washers, dryers, dishwashers, disposals, water heaters, and furnaces
  • Home maintenance budget calculator to estimate annual upkeep costs
  • HVAC filter size finder with MERV rating guidance
  • Repair vs replace calculator comparing costs and remaining lifespan
  • Appliance-specific serial number location guides
  • Comparison guides for major home systems
  • Appliance lifespan and replacement cost database
  • Blog with home maintenance guides and research findings
  • Original research data from anonymized appliance-lookup information
  • Support for major appliance brands including GE, Whirlpool, Samsung, LG, Frigidaire, and Bosch
  • Resistor Color Code: read 4, 5 and 6-band resistors or find bands for a value
  • LED Resistor: pick the current-limiting resistor and power rating
  • Voltage Divider: output voltage, loading effect, or solve R2 for target Vout
  • RC Filter: cutoff frequency, time constant and attenuation at any frequency
  • LC Resonance: resonant frequency, characteristic impedance and Q
  • 555 Timer: astable frequency/duty cycle and monostable pulse width
  • Battery Life: runtime from capacity, active/sleep current and duty cycle
  • PCB Trace Width: IPC-2221 trace width for current and temperature rise
  • Electronics Unit Converter: SI prefixes, AWG to mm², mil to mm, dBm to mW, oz copper
What makes it different
  • Free access with no account required or paywalls
  • Serial decoders cross-checked against manufacturer data
  • Content dated and sourced from trusted organizations like NAHB, NFPA, DOE, EPA, ASHI, and NAR
  • Practical, calm, non-fear-based approach to home maintenance
  • Original research published from own appliance-lookup data
  • Real E-series resistor values, not ideal numbers
  • Engineering notation input and result sharing as links
  • No ads, no tracking, no sign-up for free calculators
  • Whole-device BOM costing and battery-life summary in Pro
  • Works on phone at the bench
Community votes00
DR (Domain Rating by Ahrefs)6 −1 (down) since last checkNot checked yet no change since last check
Trust Flow (Majestic)40
Citation Flow (Majestic)210
Referring domains (Majestic)70

4 details filled in for both companies.

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