Comparison

STINGER LIGHTING vs Refrigerant P

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

Head to head
About

STINGER LIGHTING

This utility app allows users to control DIY color and color change modes for lighting devices via Bluetooth. It offers a straightforward way to customize your lighting experience directly from your smartphone.

Highlights
  • Bluetooth connectivity
  • DIY color control
  • Color change modes
  • Lighting device management
Read full description

Control the DIY color and color change mode of the lighting device through bluetooth connection.

About

Refrigerant P

Features
Read full description

HVAC Refrigerant P-T Chart provides instant pressure-temperature lookup for HVAC technicians and AC service professionals. Instant pressure-temperature lookup for 10 EPA 608 refrigerants including R-454B (next-gen EPA transition replacement) and R-32 mini-split systems with NIST REFPROP-grade saturation data cross-checked against Honeywell, Chemours, and Arkema P-T charts. FEATURES: Bidirectional Lookup - Pressure → Temp and Temp → Pressure 10 Refrigerants Supported - R-410A, R-22, R-454B, R-32, R-407C, R-134a, R-404A, R-507A, R-290, R-717 Full P-T Saturation Tables - -60°F to +150°F in 5°F steps Bubble & Dew Points - Zeotropic blend data (R-454B, R-407C, R-404A) Temperature Glide Display - Shows glide range for blends Linear Interpolation - Precise results between data points 100% OFFLINE OPERATION: Works without internet connection. All saturation data built into the app - no server calls, no delays. Perfect for job sites without cellular coverage. HOW IT WORKS: 1. Select your refrigerant (R-410A, R-454B, R-32, etc.) 2. Choose lookup: Pressure → Temp or Temp → Pressure 3. Enter your value (PSIG or °F) 4. Get instant saturation results with bubble/dew for blends WHY YOU NEED THIS APP FOR AC SERVICE: Every air conditioning service call requires instant saturation temperature verification. Whether measuring superheat, subcooling, or verifying system pressures during EPA 608 compliance work - you need accurate P-T data in your pocket. This app provides NIST-grade verified saturation tables for all 10 common EPA 608 refrigerants with R-454B transition support. SUPPORTED REFRIGERANTS: R-410A (residential AC & heat pumps), R-22 (legacy systems), R-454B (EPA replacement 2025+), R-32 (mini-splits), R-407C (commercial AC), R-134a (auto AC), R-404A (refrigeration), R-507A (low-temp), R-290 (propane), R-717 (ammonia) OPTIONAL PRO UPGRADE — $2.99 ONE-TIME IN-APP PURCHASE The following features require a separate one-time in-app purchase. They are not required to use the calculator: • Unlimited saved calculation history • PDF export of results • Dark theme • Ad-free experience PERFECT FOR: HVAC technicians on AC service calls Refrigeration mechanics and EPA 608 certified technicians AC installers and air conditioning contractors HVAC apprentices and students preparing for EPA 608 certification Building maintenance engineers Equipment commissioning specialists and diagnostics professionals All P-T data computed from NIST REFPROP-grade equations of state and cross-checked against Honeywell, Chemours, and Arkema manufacturer charts. Part of HVACTools Suite - professional HVAC technician and refrigeration calculator collection.

Screenshots

STINGER LIGHTING3 screens
Refrigerant P4 screens

Verdict

The call

The clearest difference is price: STINGER LIGHTING at Free against Refrigerant P's $0.99. STINGER LIGHTING also leads on in-app purchases (none vs 1) and ads (none vs shown). Refrigerant P's advantage is update cadence (every 9 days vs monthly). On device support and iOS requirement 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

STINGER LIGHTING is free to download; Refrigerant P costs $0.99 up front. Refrigerant P sells 1 one-off in-app purchase. STINGER LIGHTING asks for nothing beyond the download.

UpkeepUpdate frequency

STINGER LIGHTING ships an update monthly, Refrigerant P every 9 days. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

Scorecard4 real differences · 6 level
STINGER LIGHTING versus Refrigerant P: the parameters behind the verdict, then further details
ParameterSTINGER LIGHTINGRefrigerant P
PriceFree — better$0.99
Rating2.8 (10 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings10 — better—
Update frequencyMonthlyEvery 9 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.013.0
Further details — not scored
Size28 MB34 MB
Age rating4+17+
Developer康 涂Rizvan Adzhoian

In-app purchases

None

STINGER LIGHTING

No in-app purchases

1 purchases

Refrigerant P

One-time1
  • Pro Unlock$2.99

Questions

Is STINGER LIGHTING free?
STINGER LIGHTING is free to download, with no in-app purchases.
Is Refrigerant P free?
Refrigerant P costs $0.99, and also offers in-app purchases.
Do STINGER LIGHTING or Refrigerant P have ads?
Refrigerant P shows ads; STINGER LIGHTING does not.
Which is updated more often, STINGER LIGHTING or Refrigerant P?
STINGER LIGHTING ships an update monthly, and Refrigerant P every 9 days. Most recently, STINGER LIGHTING was updated on October 24, 2026 and Refrigerant P on October 12, 2026.

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