Comparison

TurboTool® vs RefrigCharge

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

Head to head
About

TurboTool®

This app assists service technicians in diagnosing and troubleshooting Danfoss Turbocor® compressors in the field. It helps identify symptoms, explore potential causes, and provides recommended next steps, along with quick reference charts and service literature.

Highlights
  • Compressor component diagnosis
  • Symptom identification and cause analysis
  • Recommended troubleshooting steps
  • Access to quick reference charts
  • Service literature and manuals
  • Spare parts identification via scanning
  • Service videos for component repair
Features
Read full description

The TurboTool® app makes it easy for service technicians to troubleshoot Danfoss Turbocor® compressors out in the field. You can use the app to help you identify symptoms, work through possible causes, and get recommended next steps. You can also instantly access TurboTool® quick reference charts. Please note that the recommendations found in the app are intended for experienced professionals familiar with Turbocor® compressors. TurboTool® should not be used by non-professionals without adequate training. How to Use When starting up TurboTool®, you'll first be taken to the Component tab, which displays a cutaway image of a Danfoss Turbocor® compressor. Select which component is having issues and TurboTool® will display a list of symptoms you can match with the compressor being serviced. You can also resolve issues on the Compressor tab by selecting symptoms on a compressor level. Both tabs allow you to see potential causes, solutions, and service literature to reference for further information. The Verify tab provides the correct operating parameters for key components, eliminating the need to keep paper documents on hand. TurboTool® also gives you access to service videos that demonstrate how to remove, install, and rebuild key components in Turbocor® compressors as well as hundreds of pages of parts catalogs and training manuals. Finally, TurboTool® helps you quickly identify required spare parts. Simply scan the compressor's serial # using your smartphone camera or enter the part or model number, and the app will display potential spare parts kits. Support For TurboTool® support, please email turbocorsupport.us@danfoss.com. You can visit http://turbocor.danfoss.com for more information and contact details. Engineering Tomorrow Danfoss engineers advanced technologies that enable us to build a better, smarter and more efficient tomorrow. In the world’s growing cities, we ensure the supply of fresh food and optimal comfort in our homes and offices, while meeting the need for energy-efficient infrastructure, connected systems and integrated renewable energy. Our solutions are used in such areas as refrigeration, air conditioning, heating, motor control and mobile machinery. Our innovative engineering dates back to 1933 and today, Danfoss holds market-leading positions, employing 28,000 people and serving customers in more than 100 countries. We are privately held by the founding family. Read more about us at www.danfoss.com. Terms and Conditions apply for use of the app.

About

RefrigCharge

Features
Read full description

Built for HVAC service techs and install crews who need subcool / superheat diagnosis on the roof - not a dashboard you log into. WHAT IT DOES Computes measured subcooling and superheat from your gauge readings, compares them against per-refrigerant target windows, and tells you whether the system is undercharged, overcharged, or showing airflow issues. Charge adjustment advice differs for TXV vs. piston / cap-tube metering, matching the field workflow. REFRIGERANTS SUPPORTED - R-410A - R-22 - R-134a - R-404A - R-407C INPUTS - Refrigerant type (picker) - Metering device (TXV or Piston / Cap Tube) - Liquid line temperature - Condensing saturation temperature - Suction line temperature - Evaporating saturation temperature - °F or °C toggle RETURNS - Measured subcooling vs. target (color-coded: green within ±3°F, red outside) - Measured superheat vs. target (color-coded) - Diagnosis: undercharged, overcharged, normal, or airflow issue - Charge adjustment advice: ADD, REMOVE, or CORRECT - Adjustment basis: subcool for TXV, superheat for piston WHY THIS APP, NOT THE FREE ONES - Math is shown - measured minus target, with the per-refrigerant windows visible. - Status at a glance - color-coded so you do not have to do mental arithmetic on the ladder. - Works offline - RF-shielded basements, attics, and roofs. Always available. - No login. No ads. No telemetry. No subscription. PRICING $4.99. Pay once, own it. Lifetime access on iPhone, iPad, and Mac via Family Sharing. NOT A SUBSTITUTE FOR The manufacturer's charging procedure for your specific equipment. The equipment data plate's nameplate charge. Calibrated gauge sets. This app gives you a directional read - verify against the OEM service manual before adjusting.

Screenshots

TurboTool®4 screens
RefrigCharge3 screens

Verdict

The call

The clearest difference is price: TurboTool® at Free against RefrigCharge's $7.99. TurboTool® also leads on iOS requirement (12.0 vs 17.0). RefrigCharge's advantage is update cadence (every 6 weeks vs every 3 months). On ads, in-app purchases 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

TurboTool® is free to download; RefrigCharge costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

TurboTool® ships an update every 3 months, RefrigCharge every 6 weeks. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
TurboTool® versus RefrigCharge: the parameters behind the verdict, then further details
ParameterTurboTool®RefrigCharge
PriceFree — better$7.99
Rating4.6 (17 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings17 — better—
Update frequencyEvery 3 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size158 MB1 MB
Age rating4+4+
DeveloperDanfoss A/SShanghai Sheyuan Network Technology Co., Ltd.

In-app purchases

None

TurboTool®

No in-app purchases

None

RefrigCharge

No in-app purchases

Questions

Is TurboTool® free?
TurboTool® is free to download, with no in-app purchases.
Is RefrigCharge free?
RefrigCharge costs $7.99, with no in-app purchases.
Do TurboTool® or RefrigCharge have ads?
Neither TurboTool® nor RefrigCharge shows ads.
Which is updated more often, TurboTool® or RefrigCharge?
TurboTool® ships an update every 3 months, and RefrigCharge every 6 weeks. Most recently, TurboTool® was updated on November 6, 2026 and RefrigCharge on October 31, 2026.

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