Comparison

Charger Master vs LARA Lock Reader Assistant

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

Head to head
About

Charger Master

Personalize your charging experience with custom sounds and animations. This app also offers tools to test charging speed, estimate battery life, and provide maintenance tips.

Highlights
  • Custom charging sounds
  • Charging animations
  • Charging power detection
  • Battery life calculator
  • Charging time estimation
  • Battery maintenance tips
  • Home screen widgets
Features
Read full description

The charging sound is now online, making you the brightest boy in the village instantly! Charging sound, unplugged sound, full battery sound, low battery sound, there is always one that belongs to you~ New function of charging animation, carefully design a number of exquisite animations, reject the fuzzy mosaic animation, bring different charging experience. New feature of automatic charging test is comming. After connecting to the charging cable, the Charger Master can automatically start the test without manually opening the APP. In [Tools-Automatic charging test], you can view the detailed tutorial~ (iOS14 system required). Charger Master will be a good companion for your charger. It uses a well-designed algorithm and has been tested by many users for tens of thousands of times. It can quickly and accurately measure the charging power of your device and help you find the best charger. 【FEATURES】 1. Detect the charging power of the current device. 2. Charge animations , charge sound. 3. View the charging time, capacity, speed and other parameters of your charger. 4. View the current device's adapter charger, PD fast charging power, wireless charging power and other parameters. 5. Record detailed test results, and can set test charger to facilitate retrospective. 6. Support setting the current battery health and battery rated capacity. 7. Support to add custom charger model, power, brand and interface. 8. Battery life calculator can estimate battery life based on capacity and power consumption. 9. The charging calculator can estimate the time required to fully charge the battery. 10. Battery capacity conversion can quickly convert watt-hours and milliamp-hours. 11. Battery maintenance tips can help you better extend battery life. 12. Hundreds of thousands of HD animations and wallpapers have been launched. 13. Well-designed home screen widgets to make your desktop look new

About

LARA Lock Reader Assistant

This app assists automotive locksmiths by providing a comprehensive database of key, transponder, and Lishi tool information. It helps decode car locks, verify bitting, and offers programming procedures for transponders and remotes, drawing on a vast user-generated feedback database.

Highlights
  • Key, transponder, and remote programming instructions
  • Lishi tool information and decoding
  • User-generated feedback database
  • Visual MACS validation
  • Rekey wafer swapping
  • Cutting Tree for bitting optimization
  • Vehicle make and model information
Features
Read full description

The Locksmiths Automotive Rapid Assistant Unleash your automotive locksmithing prowess with our app—unlock the secrets to making keys for cars, trucks, and motorcycles, including transponder programming instructions. Join a vibrant community of expert key makers and programmers. LARA is NOT FREE it is SUBSCRIPTION ONLY Now the Good Stuff!! LARA makes Locksmiths lives a lot easier by putting Key, Transponder, Remote & Lishi tool information right at your fingertips. As well as being able to decode the car lock and verify the bitting before you even remove your Lishi tool from the lock. Highlights * User Feedback. LARA has a huge user feedback created database meaning you not only get my knowledge and experience but that of hundreds of locksmiths world wide. * KeyDIY The most comprehensive Reference library available on your phone * Decode with 1/2 cuts when you're not sure of a depth. * My Tools highlighter shows instantly which tools you currently have and what tools you need. * Visual MACS validation as you decode your lock LARA will highlight impossible combinations. * LARA Rekey now lets you choose wafers to swap around and returns a list of valid codes * LARA Codes and FILL returns the valid bittings in a Cutting Tree to minimize key blank wastage and save time. * On board transponder programming procedures. * Remote programming procedures. * Backup and Restore to your tools. Means tools lists can be Restored to all of your devices. LARA is firstly a notepad to record the decoded cuts of a car lock when decoded by a variety of tools. As you are decoding your lock with your Lishi 2 in 1 or Determinator tools or any other automotive reading tool, you can enter the cuts into LARA. LARA will suggest which wafers are in the door lock for you. Once finished in many cases you can run your bitting through LARA Codes Online whilst still standing at the vehicle door. There is quite a lot of information that LARA has to help you along your way to making keys to that vehicle, such as: * Vehicle make and general model information * Code series used * Which wafers are likely to be in the door lock. * Code rules which can help to ensure you are decoding each lock correctly. LARA is vehicle information I have gathered from personal experience or have verified to me. I do not just look up books and add random data, so you will not find every vehicle in the world. At the moment there is information on around 1800 vehicles. Again this is information I have been able to verify. Please note that whilst I have made every effort to ensure all data is correct there are bound to be errors and it is up to you to ensure you are using the correct equipment, keys, transponder, remotes and procedures. LARA Subscriptions A subscription is automatically renewed if it is not canceled within 24 hours before the end of the current period via your iTunes account. You can find more information in the terms of use and conditions. Terms & Conditions https://locksdownunder.com/Terms_and_Conditions_LARA.html

Screenshots

Charger Master4 screens
LARA Lock Reader Assistant4 screens

Verdict

The call

The clearest difference is review sentiment: LARA Lock Reader Assistant at 100% against Charger Master's 27%. LARA Lock Reader Assistant also leads on rating (5.0 vs 4.3) and ads (none vs shown). Charger Master's advantage is monetization model (free with in-app purchases vs subscription) and ratings volume (6K vs 2). On price, 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

Both are free to download. Charger Master sells 2 one-off in-app purchases and LARA Lock Reader Assistant sells 2 in-app purchases, starting at $29.99 per 6 months. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

LARA Lock Reader Assistant holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Charger Master has 6K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 27% of Charger Master's written reviews are positive against 100% of LARA Lock Reader Assistant's.

UpkeepUpdate frequency

Charger Master ships an update every 10 days, LARA Lock Reader Assistant every 4 days. The most recent releases landed on September 27, 2026 and September 6, 2026 respectively.

Scorecard7 real differences · 3 level
Charger Master versus LARA Lock Reader Assistant: the parameters behind the verdict, then further details
ParameterCharger MasterLARA Lock Reader Assistant
PriceFreeFree
Rating4.3 (6K ratings)5.0 (2 ratings) — better
Positive reviews26.7% of reviews100.0% of reviews — better
Number of ratings6K — better2
Update frequencyEvery 10 daysEvery 4 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.0
Further details — not scored
Size70 MB37 MB
Age rating4+4+
Developer东海 刘Tony Steward

Customer experience

Charger Master

All ratings5,998 ratings
Positive81.7%
Neutral4.1%
Negative14.3%
Written reviews505 reviews
Positive26.7%
Neutral8.9%
Negative64.4%

LARA Lock Reader Assistant

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Charger Master

Reported bugs

3 issues
  • Automation failures
  • Charging test freezes
  • Inconsistent percentage display

Requested features

4 requests
  • Lock screen charging animations
  • Wireless charging speed monitoring
  • Battery health tracking
  • Export charging data to CSV/Excel

LARA Lock Reader Assistant

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Charger Master

One-time2
  • Pro Edition$1.99
  • Lifetime Professional Edition$3.99
2 purchases

LARA Lock Reader Assistant

Subscriptions2
  • 6 Months Access7 Days trial$29.996 Months
  • 1 Year Full access (no eeprom)7 Days trial$49.991 Year

Questions

Is Charger Master free?
Charger Master is free to download, with in-app purchases available.
Is LARA Lock Reader Assistant free?
LARA Lock Reader Assistant is free to download, with in-app purchases available.
Which has better reviews, Charger Master or LARA Lock Reader Assistant?
LARA Lock Reader Assistant is rated higher. Charger Master averages 4.3 out of 5 from 6K ratings, while LARA Lock Reader Assistant averages 5.0 from 2 ratings.
Do Charger Master or LARA Lock Reader Assistant have ads?
Charger Master shows ads; LARA Lock Reader Assistant does not.
Which is updated more often, Charger Master or LARA Lock Reader Assistant?
Charger Master ships an update every 10 days, and LARA Lock Reader Assistant every 4 days. Most recently, Charger Master was updated on September 27, 2026 and LARA Lock Reader Assistant on September 6, 2026.

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