Comparison

A2Calc vs LOCKLY®

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

Head to head
About

A2Calc

This app assists locksmiths by automatically calculating pinning charts for A2 SFIC systems. It supports 6 or 7 pin systems and includes features like a randomize function, control finder, and project saving. Projects are encrypted and can be shared via AirPrint or email.

Highlights
  • Automatic pinning chart calculation
  • Supports 6 or 7 pin systems
  • Randomize chart generation
  • Control Finder for lost control keys
  • Save up to 16 projects
  • Encrypted and passcode-protected projects
  • Share projects via AirPrint or email
Features
Read full description

A2 Small Format Interchangeable Core Calculator ---Programmed by a Locksmith, for Locksmiths--- Automatically calculates the pinning chart for A2 SFIC. Built for 6 or 7 pin systems, however, less can be achieved by using a decimal to erase a chamber. Minimum of a control and master key are required to make a chart. Additional change key available for all devices; 2 change keys available for 4" (and above) screen devices. Randomize function will generate completely random charts each time it is triggered. "Lock/Unlock" toggle disables/enables all inputs and functions to prevent unwanted/lost changes. Control Finder is an added bonus by reverse engineering a core to determine the control key's bitting. This is perfect when needing to remove multiple cores in a building when the control key has been lost. There are two methods for achieving the control key: 1. using the master, control, and bottom pins, or 2. using only the top/driver pins. Up to 16 different projects can be saved at any one given time. All projects are encrypted and protected with a passcode. AirPrint or Email projects with a single tap. Compatibility: iPhone / iPod touch on iOS 8.0 or later and iPad on iOS 12.0 or later. Found a bug? Something not working? Have a suggestion? Feel free to contact me via email: farren@phoxlocks.com

About

LOCKLY®

Manage your older Lockly smart locks and safes. Remotely control access, generate temporary codes, and monitor activity logs. Integrates with voice assistants for convenient, hands-free operation.

Highlights
  • Remote lock/unlock
  • Offline Access Codes™
  • Activity log viewing
  • Voice assistant integration
  • Guided device setup
Features
Read full description

Legacy Support for Classic Lockly Devices​ This app supports earlier Lockly smart locks and smart safes. It’s the reliable companion for your existing devices.​ Remote Control – Lock or unlock doors remotely, check status and receive notifications.​ Share Access Easily – Create temporary or permanent Offline Access Codes™ and eKeys for family and visitors.​ View Activity Logs – Track who comes and goes with comprehensive entry history.​ Voice Assistant Integration – Compatible with Amazon Alexa and Google Assistant for hands‑free control.​ Simple Setup – Pair your Lockly devices quickly using the app’s guided steps.​ Have a Zeno Series, Lockly Styla or Secure Pro 2025 Edition? Unlock live video, facial recognition and Apple Home Key capabilities by downloading our new Lockly Home app—designed to bring you the next generation of smart‑access solutions.​ Note: Feature availability varies depending on your Lockly model; consult your product documentation for details.​ Subscription Plans: 1 lock subscription per month $2.00 / month / 1 Lock 2 lock subscription per month $4.00 / month / 2 Locks 3 lock subscription per month $6.00 / month / 3 Locks 4 lock subscription per month $8.00 / month / 4 Locks 5 lock subscription per month $10.00 / month / 5 Locks 1 lock subscription per year $19.00 / year / 1 Lock 2 lock subscription per year $38.00 / year / 2 Locks 3 lock subscription per year $57.00 / year / 3 Locks 4 lock subscription per year $76.00 / year / 4 Locks 5 lock subscription per year $95.00 / year / 5 Locks *The auto-renewal subscription service provides you with Lockly Tapcom's unlocking and audio/video call privileges.The subscription service provides you with unlimited storage. The auto-renewal date will be one month or one year from the subscription date (your choice). When the current subscription period ends, you will be automatically charged. After subscribing, you cannot cancel the current subscription within 24 hours before the auto-renewal date, until the next subscription period begins. You can change this setting by going to your "Account Settings. Terms of Use: https://lockly.com/pages/terms-of-use Privacy Policy: https://lockly.com/pages/privacy-policy

Screenshots

A2Calc4 screens
LOCKLY®4 screens

Verdict

The call

The clearest difference is review sentiment: A2Calc at 94% against LOCKLY®'s 47%. A2Calc also leads on in-app purchases (none vs 11) and rating (4.7 vs 4.5). LOCKLY®'s advantage is price (Free vs $6.99) and ratings volume (8K vs 10). On 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

LOCKLY® is free to download; A2Calc costs $6.99 up front. LOCKLY® sells 11 in-app purchases, starting at $2.00 per month. A2Calc asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

A2Calc holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: LOCKLY® has 8K ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 94% of A2Calc's written reviews are positive against 47% of LOCKLY®'s.

UpkeepUpdate frequency

A2Calc ships an update every 3 months, LOCKLY® monthly. The most recent releases landed on September 30, 2026 and October 11, 2026 respectively.

Scorecard7 real differences · 3 level
A2Calc versus LOCKLY®: the parameters behind the verdict, then further details
ParameterA2CalcLOCKLY®
Price$6.99Free — better
Rating4.7 (10 ratings) — better4.5 (8K ratings)
Positive reviews93.8% of reviews — better47.4% of reviews
Number of ratings108K — better
Update frequencyEvery 3 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better13.4
Further details — not scored
Size2 MB207 MB
Age rating4+17+
DeveloperFarren DomeniciPIN GENIE LIMITED

Customer experience

A2Calc

All ratings10 ratings
Positive90.0%
Neutral10.0%
Negative0.0%
Written reviews16 reviews
Positive93.8%
Neutral6.3%
Negative0.0%

LOCKLY®

All ratings8,017 ratings
Positive86.9%
Neutral3.4%
Negative9.8%
Written reviews213 reviews
Positive47.4%
Neutral15.0%
Negative37.6%

Bugs and requests

A2Calc

Not enough reviews yet to summarise bugs or requests.

LOCKLY®

Reported bugs

4 issues
  • App frequently loses connection to the lock
  • Fingerprint reader not always responsive
  • Inconsistent behavior when manually locking/unlocking the door
  • Firmware updates causing issues

Requested features

4 requests
  • Add support for Apple HomeKit and other smart home integrations
  • Improve notification and log features
  • Allow multiple admin users for shared homes
  • Implement scheduling and automation options

In-app purchases

None

A2Calc

No in-app purchases

11 purchases

LOCKLY®

Subscriptions11
  • 1 lock subscription per month$2.001 Month
  • 2 lock subscription per month$4.001 Month
  • 3 lock subscription per month$6.001 Month
Show 8 more
  • 4 lock subscription per month$8.001 Month
  • 5 lock subscription per month$10.001 Month
  • 1 lock subscription per year$19.001 Year
  • 2 lock subscription per year$38.001 Year
  • 3 lock subscription per year$57.001 Year
  • 4 lock subscription per year$76.001 Year
  • 5 lock subscription per year$95.001 Year
  • 5 locks subscription per year$119.991 Year

Questions

Is A2Calc free?
A2Calc costs $6.99, with no in-app purchases.
Is LOCKLY® free?
LOCKLY® is free to download, with in-app purchases available.
Which has better reviews, A2Calc or LOCKLY®?
A2Calc is rated higher. A2Calc averages 4.7 out of 5 from 10 ratings, while LOCKLY® averages 4.5 from 8K ratings.
Do A2Calc or LOCKLY® have ads?
Neither A2Calc nor LOCKLY® shows ads.
Which is updated more often, A2Calc or LOCKLY®?
A2Calc ships an update every 3 months, and LOCKLY® monthly. Most recently, A2Calc was updated on September 30, 2026 and LOCKLY® on October 11, 2026.

Other comparisons