Comparison

ShowingTime vs SerialCheck

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ShowingTime

Manage real estate showings and client feedback efficiently. Access listing details offline, sync with your calendar, and share activity with clients. Sellers receive instant notifications and can review showing history.

Highlights
  • Schedule showings on the go
  • Offline mode for listing details
  • Share listing activity with clients
  • Manage showing feedback
  • Sync appointments with personal calendar
  • Instant seller notifications
Features
Read full description

ShowingTime provides residential real estate agents, offices, associations and MLSs with tools to manage showings and feedback, plus analytics and reporting tools to gain valuable market insights. A market and technology leader in real estate, ShowingTime products - accessible via its mobile app - are used in more than 250 MLSs across North America representing more than 750,000 members, helping them schedule 3 million showings per month. Benefits for real estate professionals: -Schedule showings and view instructions on the go -Access important details any time with the new offline mode -Set font sizes in the app to match your viewing preferences on mobile devices -Search for listings available to show near your location -Share listing activity with your clients -Manage feedback for your listings; give feedback on your recent showings -Notify sellers when you have completed the showing -Sync appointment activity with your personal calendar Benefits for sellers: -Get notified instantly of showings and new feedback -Review past showing activity and upcoming appointments -Receive “showing complete” alerts to know when to return home -Send private messages to your agent regarding a recent or upcoming appointment

About

SerialCheck

Features
Read full description

SerialCheck: HVAC & Water Heater Age + Model Decoder SerialCheck is a streamlined, offline-first tool designed for residential home inspectors, property managers, and service professionals. Quickly determine the age of furnaces, water heaters, and outdoor AC units by decoding manufacturer serial numbers, and extract useful model-number details where supported. Built specifically to replace unreliable web-based lookup resources, SerialCheck works in basements, crawl spaces, attics, and mechanical rooms where cell signals fail. No account required, no ads, and no report-writing clutter — just fast field information you can copy into your inspection report. KEY FEATURES: FAST AGE DECODING Translate complex manufacturer serial numbers into manufacture dates. MODEL NUMBER SPECS For supported brands, decode useful model-number details such as equipment type, nominal capacity, efficiency class, product tier, voltage, refrigerant, fuel type, water heater capacity, and tankless/tank format. 100% OFFLINE DECODING Core decoding data is stored locally on your device. No internet connection is required for normal decoding. GUIDED ENTRY Select the appliance type, choose the brand, and enter the model and serial information. COPY & SHARE Copy decoded results for easy use in inspection reports, service notes, and property records. PRIVACY-MINDED No required login, no ads, and no selling user data. SUPPORTED APPLIANCES & COVERAGE: WATER HEATERS Age decoding for major water heater brands including Rheem, Bradford White, AO Smith, Richmond, State, Kenmore, Whirlpool, American Water Heater, Reliance, Ruud, Mainstream, Navien, Rinnai, and many others. Water heater model-number Find Specs is available for supported brands such as Bradford White and Rheem. FURNACES Age decoding for major furnace brands including Carrier, Bryant, Payne, Lennox, Armstrong, Goodman, Amana, Trane, American Standard, York, Coleman, Heil, Tempstar, and more. OUTDOOR AC UNITS & HEAT PUMPS Age decoding for major outdoor HVAC brands including Goodman, Lennox, Rheem, Trane, Carrier, York, Bryant, Ruud, American Standard, and other major manufacturers. Outdoor HVAC model-number Find Specs is available for supported brands including Carrier, Goodman, Lennox, and Trane. IDEAL FOR: HOME INSPECTORS Get manufacture dates and useful equipment details for professional reports. PROPERTY MANAGERS Track appliance and HVAC equipment age across a portfolio. SERVICE PROFESSIONALS Identify unit age and basic equipment specs to support repair-or-replace conversations. Stop relying on slow, outdated websites. SerialCheck gives you fast, field-ready appliance and HVAC decoding so you can get the information you need and move on. NOTES: SerialCheck focuses on manufacturer serial-number age decoding and selected model-number specification decoding. Supported model-number details vary by brand and appliance type. Results should be verified against the equipment rating plate when needed. Bosch and Nortek-family products are currently not supported. PRIVACY SerialCheck does not require an account, contains no ads, and does not sell user data. We collect limited operational data such as device type, OS version, app version, and coarse location derived from your public IP address. This helps us understand device usage, active app versions, general app performance, and detect abuse or misuse of our systems. This data is retained for up to 90 days on servers we control. If you contact support, you may provide your name and email address so we can reply. Support emails are not used for tracking and are deleted when no longer needed, or within 2 years. SAFETY We use limited operational data to detect abuse, scraping, misuse, and other activity that could interfere with the app or our systems.

Screenshots

ShowingTime4 screens
SerialCheck4 screens

Verdict

The call

The clearest difference is in-app purchases: ShowingTime at none against SerialCheck's 3. ShowingTime also leads on iOS requirement (13.0 vs 15.6). SerialCheck's advantage is update cadence (every 3 weeks vs every 3 months). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SerialCheck sells 3 in-app purchases, starting at $0.99 per month. ShowingTime asks for nothing beyond the download.

UpkeepUpdate frequency

ShowingTime ships an update every 3 months, SerialCheck every 3 weeks. The most recent releases landed on November 6, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 7 level
ShowingTime versus SerialCheck: the parameters behind the verdict, then further details
ParameterShowingTimeSerialCheck
PriceFreeFree
Rating2.4 (863 ratings) — better—
Positive reviews12.0% of reviews—
Number of ratings863 — better—
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS13.0 — better15.6
Further details — not scored
Size169 MB35 MB
Age rating4+17+
DeveloperShowingTime.com, LLCNanoHawk

Bugs and requests

ShowingTime

Reported bugs

4 issues
  • App constantly redirects to notification screen
  • Listings not showing up or syncing properly
  • Login credentials not working consistently
  • Showing requests not being received or processed

Requested features

4 requests
  • Allow sellers to manage showings directly
  • Improve showing cart functionality on mobile
  • Add landscape mode support for tablets
  • Provide better notification control and customization

SerialCheck

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

ShowingTime

No in-app purchases

3 purchases

SerialCheck

Subscriptions2
  • SerialCheck Pro Monthly$0.991 Month
  • SerialCheck Pro Annual$3.991 Year
One-time1
  • SerialCheck Pro Lifetime$19.99

Questions

Is ShowingTime free?
ShowingTime is free to download, with no in-app purchases.
Is SerialCheck free?
SerialCheck is free to download, with in-app purchases available.
Do ShowingTime or SerialCheck have ads?
Neither ShowingTime nor SerialCheck shows ads.
Which is updated more often, ShowingTime or SerialCheck?
ShowingTime ships an update every 3 months, and SerialCheck every 3 weeks. Most recently, ShowingTime was updated on November 6, 2026 and SerialCheck on October 28, 2026.

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