Comparison

SMART Service Tool vs 608Log

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

Head to head
About

SMART Service Tool

This tool helps HVACR technicians quickly convert pressure to temperature and calculate superheat/subcooling using refrigerant data. It offers selectable units, customizable displays, and the ability to record and email data.

Highlights
  • Pressure to temperature conversion
  • Superheat and subcooling calculation
  • Selectable units of measure
  • Digital or analog display modes
  • Record and email data
  • Over 65 refrigerants supported
Read full description

The Parker Sporlan SMART Service Tool, along with unique Bluetooth Low Energy sensors, allows quick pressure to temperature conversion and automatic calculation of superheat and subcooling by utilizing essential refrigerant data in the app. Contractors and technicians will enjoy the user friendly design and precise calculations (based on National Institute of Standards and Technology (NIST) Refrigerant Properties). Features: • Selectable units of measure • User defined display – Display data in digital or simulated analog modes • Ability to record and e-mail data from within the app • More than 65 refrigerants (pure and mixtures) are available. The Bluetooth Low Energy sensors are offered for sale from Sporlan Division of Parker Hannifin. About Sporlan Division: From the 1947 launch of the Catch-All®, the world’s first molded core filter-drier, to today’s intricate electronic valve and controller packages, for over 80 years Sporlan has set the industry standard for the development and manufacture of leading edge HVACR components. About Parker Hannifin: Founded in 1918, Parker Hannifin Corporation is the world’s leading diversified manufacturer of motion and control technologies and systems, providing precision-engineered solutions for a wide variety of mobile, industrial and aerospace markets. About Semireg Industries: Based out of Minnesota, Semireg Industries, LLC develops award-winning software applications that integrate with hardware using Bluetooth Low Energy, WiFi and USB. Applications developed by Semireg enable users to understand complex systems with intuitive control of sensors and data visualizations.

About

608Log

Features
Read full description

The only iOS app built for EPA 608-certified HVAC technicians that generates signed, legally-compliant service records — right on the job site. AIM Act ER&R COMPLIANT — 2026 UPDATE The AIM Act expanded mandatory refrigerant logging to all systems with 15+ lbs of HFC (R-410A, R-454B, R-32, R-134a). That's thousands of rooftop units that weren't covered before January 1, 2026. 608Log handles the new threshold automatically — correct calculations, correct forms, no guesswork. WHAT EVERY TECH NEEDS ON EVERY CALL • Signed EPA compliance PDF — generated on your phone before you leave the roof • Customer signature capture — on-device, attached to every record • Auto-calculated leak rates — based on your system's full charge, every time • Repair deadline tracking — push notifications at 7 days and 2 days before your 30-day EPA clock runs out • Email record to customer — one tap after saving, satisfies the ER&R owner-notification requirement • iCloud sync — your records are on every device and accessible on demand for any inspector 7 FREE FIELD TOOLS — ALWAYS FREE • Pressure-Temperature chart (all major refrigerants) • Superheat & Subcooling calculator • A2L charge limit calculator (R-454B, R-32) • Airflow / Delta-T calculator • Electrical — capacitor & amp draw • Fixed orifice superheat • R-22 / R-404A / R-410A retrofit guide EPA violations cost up to $70,000 per day. One missing record is one violation. 608Log turns a 10-minute paperwork headache into a 3-minute step you complete before you pull off the lot. FREE PLAN — NO CREDIT CARD REQUIRED • 15 service logs per month • Full EPA compliance PDFs with signature • All 7 field tools • iCloud sync across all your devices 608LOG PRO — $9.99/MONTH OR $99.99/YEAR • Unlimited logs — no monthly cap • Invoice generation — professional PDF invoices from any service record • Unlimited maintenance scheduling — filters, belts, capacitors, coil cleaning • Company branding — your logo on every PDF and invoice • Repeat Job — one tap pre-fills from your last visit • 14-day free trial, cancel anytime BUILT FOR THE FIELD Works offline. No cell signal on the roof? Log the job anyway — syncs when you're back on the truck. Barcode scan equipment serial numbers directly from nameplates. Your EPA cert number prints on every record automatically. Covers 40 CFR §82 (Section 608), 40 CFR §84 (AIM Act ER&R), California CARB RMP 14-day repair window, and industrial process 120-day extended deadlines. 3 years of records. One app. Zero violations.Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

SMART Service Tool1 screens
608Log4 screens

Verdict

The call

The clearest difference is in-app purchases: SMART Service Tool at none against 608Log's 2. 608Log's advantage is iOS requirement (17.0 vs 26.0). On price, update cadence, 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. 608Log sells 2 in-app purchases, starting at $9.99 per month. SMART Service Tool asks for nothing beyond the download.

UpkeepUpdate frequency

SMART Service Tool ships an update every 3 weeks, 608Log monthly. The most recent releases landed on September 22, 2026 and October 2, 2026 respectively.

Scorecard2 real differences · 8 level
SMART Service Tool versus 608Log: the parameters behind the verdict, then further details
ParameterSMART Service Tool608Log
PriceFreeFree
Rating4.0 (15 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings15 — better—
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS26.017.0 — better
Further details — not scored
Size62 MB9 MB
Age rating4+4+
DeveloperRodrigo MirandaAngela Freeman

In-app purchases

None

SMART Service Tool

No in-app purchases

2 purchases

608Log

Subscriptions2
  • 608Log Pro$9.991 Month
  • 608Log Pro14 Days trial$99.991 Year

Questions

Is SMART Service Tool free?
SMART Service Tool is free to download, with no in-app purchases.
Is 608Log free?
608Log is free to download, with in-app purchases available.
Do SMART Service Tool or 608Log have ads?
Neither SMART Service Tool nor 608Log shows ads.
Which is updated more often, SMART Service Tool or 608Log?
SMART Service Tool ships an update every 3 weeks, and 608Log monthly. Most recently, SMART Service Tool was updated on September 22, 2026 and 608Log on October 2, 2026.

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