Comparison

ID Lock vs HVAC Superheat Subcooling Calc

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

Head to head
About

ID Lock

Securely store and manage your passwords, credit card numbers, and other sensitive information. Enjoy fast setup, advanced encryption, and seamless syncing across all your devices. Try it risk-free with a 30-day free trial of premium features.

Highlights
  • Password storage
  • Credit card management
  • Bank account information
  • 256-bit AES encryption
  • Keychain security
  • Cross-device syncing
  • Secure cloud backup
  • User-friendly interface
Features
Read full description

Say goodbye to post-it notes and lost passwords. Keep your passwords and personal information safe and secure with ID Lock®. Our app is designed with your convenience in mind, offering fast and easy setup, secure backup and syncing across all of your devices. Security Features ID Lock® securely stores all of your important information, including web site passwords, credit card numbers, bank account information, and more. Our advanced encryption technology includes password protection, powerful 256-bit AES encryption, and an additional layer of keychain security that other apps don't have. Never worry about loss or theft again. Sync Across Devices ID Lock® synchronizes your data across all of your iOS devices, allowing you to have instant access to your critical information wherever you are. And with our secure cloud service, your data is backed up and protected at all times. Easy to Use Interface Convenience is key with ID Lock®. Our user-friendly interface makes data entry fast and easy, and our 14 built-in data categories and customizable options allow you to tailor the app to your needs. Plus, our full-text search and support for Bluetooth keyboards make it easy to find the information you need quickly. Try Before You Buy Try ID Lock® risk-free with our try-before-you-buy option. Our in-app purchase unlocks secure syncing and cloud backup, unlimited items, and extra features. And for a limited time, we're offering secure syncing and cloud backup free for 30 days. Auto-Renewing Subscription Please note that ID Lock is an auto-renewing subscription service, and your credit card will be charged through your iTunes account. You can turn off auto-renew at any time from your iTunes account settings. -------------------------------------------------------------- Auto-Renewing Subscription Your subscription will automatically renew each month or year, and your credit card will be charged through your iTunes account. You can turn off auto-renew at any time from your iTunes account settings. Privacy Policy: https://www.softwareops.com/software-ops-privacy-policy Terms of Use: https://www.softwareops.com/software-ops-license-agreement

About

HVAC Superheat Subcooling Calc

Features
Read full description

On a service call and need to check superheat and subcooling without flipping through PT charts? Select your refrigerant (R-410A, R-22, R-134a, or R-404A), enter suction and liquid line pressures and temperatures, and get instant color-coded readings: green for normal, yellow for marginal, red for out of range. WHAT IT CALCULATES: - Superheat (suction line temperature minus saturation temperature) - Subcooling (saturation temperature minus liquid line temperature) - Saturation temperatures from built-in pressure-temperature charts REFRIGERANTS SUPPORTED: - R-410A - R-22 - R-134a - R-404A KEY FEATURES: - Built-in PT charts for all four refrigerants - Color-coded status indicators for quick diagnosis - Target range reference (10-15 F for both superheat and subcooling) - Instant results as you adjust inputs - Works completely offline - No account or login required Built for HVAC technicians, refrigeration mechanics, and service professionals who need fast, reliable superheat and subcooling checks during system diagnostics and charging.

Screenshots

ID Lock4 screens
HVAC Superheat Subcooling Calc4 screens

Verdict

The call

The clearest difference is price: ID Lock at Free against HVAC Superheat Subcooling Calc's $4.99. HVAC Superheat Subcooling Calc's advantage is in-app purchases (none vs 2). On update cadence, ads, 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

ID Lock is free to download; HVAC Superheat Subcooling Calc costs $4.99 up front. ID Lock sells 2 in-app purchases, starting at $3.99 per month. HVAC Superheat Subcooling Calc asks for nothing beyond the download.

UpkeepUpdate frequency

ID Lock ships an update every 3 weeks, HVAC Superheat Subcooling Calc every 5 weeks. The most recent releases landed on September 26, 2026 and September 7, 2026 respectively.

Scorecard2 real differences · 8 level
ID Lock versus HVAC Superheat Subcooling Calc: the parameters behind the verdict, then further details
ParameterID LockHVAC Superheat Subcooling Calc
PriceFree — better$4.99
Rating4.8 (787 ratings) — better—
Positive reviews72.6% of reviews—
Number of ratings787 — better—
Update frequencyEvery 3 weeks — betterEvery 5 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscription—
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.617.0 — better
Further details — not scored
Size143 MB1 MB
Age rating4+4+
DeveloperSoftware Ops LLCShanghai Sheyuan Network Technology Co., Ltd.

Bugs and requests

ID Lock

Reported bugs

3 issues
  • Password not recognized after updates
  • Inability to add new entries after subscription change
  • Backup and restore functionality not working as expected

Requested features

4 requests
  • Ability to import/export data
  • More templates for international users
  • Syncing across multiple devices
  • Customizable categories and fields

HVAC Superheat Subcooling Calc

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

ID Lock

Subscriptions2
  • Monthly Subscription$3.991 Month
  • Yearly Subscription$44.991 Year
None

HVAC Superheat Subcooling Calc

No in-app purchases

Questions

Is ID Lock free?
ID Lock is free to download, with in-app purchases available.
Is HVAC Superheat Subcooling Calc free?
HVAC Superheat Subcooling Calc costs $4.99, with no in-app purchases.
Do ID Lock or HVAC Superheat Subcooling Calc have ads?
Neither ID Lock nor HVAC Superheat Subcooling Calc shows ads.
Which is updated more often, ID Lock or HVAC Superheat Subcooling Calc?
ID Lock ships an update every 3 weeks, and HVAC Superheat Subcooling Calc every 5 weeks. Most recently, ID Lock was updated on September 26, 2026 and HVAC Superheat Subcooling Calc on September 7, 2026.

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