Comparison

Quick Tip CalculatorX vs Lock App

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

Head to head
About

Quick Tip CalculatorX

Features
Read full description

Calculate tip and split the bill and tips by people- the ultimate tip calculator! This tip calculator app not only calculates tip quickly and easily but also helps to split the bill between any number of people.

About

Lock App

This app safeguards your privacy by encrypting applications, photos, and videos. It also offers parental controls to manage screen time and restrict app installations, ensuring a safer digital environment for children. Enhanced security features include password and facial recognition protection.

Highlights
  • Encrypt applications, games, photos, videos, and contacts
  • Restrict access to sensitive content
  • Control screen time and app installations
  • Digital password and face recognition security
  • Prevent deletion of important applications
Features
Read full description

protect privacy, manage time and control the duration of mobile phone use. [Application features] -Encrypt applications, games, photos, videos, contacts. -Privacy protection: restrict any application to ensure that sensitive content is not snooped. -Parental control: prohibit the installation of improper applications, control the screen time and equipment usage, and provide a healthier mobile phone environment for children. -Enhance security: provide double protection for setting digital passwords and face recognition passwords for applications. -Anti-deletion function: it is forbidden to delete important applications to ensure data integrity. -automatic renewal terms -Subscription money will be deducted from your iTunes account when you confirm your purchase and at the beginning of each renewal period. -Renewal: Apple's iTunes account will be charged within 24 hours before its expiration, and the subscription period will be extended by one subscription period after the successful deduction. -Cancel your subscription: You can cancel your subscription or trial at any time by going to your iTunes account to set up and cancel your subscription, otherwise it will be renewed automatically. This operation must be completed 24 hours before the end of the probation period or any subscription period to avoid being charged. Subscriptions that include a trial period will be automatically renewed as paid subscriptions. Privacy policy:https://m11iavy23en.feishu.cn/docx/Sc2dda9oFoqyr4x8ODicEbThnOh?from=from_copylink User agreement:https://m11iavy23en.feishu.cn/docx/Yzvudixnmo8snZxjx4rcRc0lnBw?from=from_copylink

Screenshots

Quick Tip CalculatorX1 screens
Lock App3 screens

Verdict

The call

The clearest difference is in-app purchases: Quick Tip CalculatorX at none against Lock App's 2. Quick Tip CalculatorX also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price, update cadence and ads 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. Lock App sells 2 in-app purchases, starting at $4.99 per 7 days. Quick Tip CalculatorX asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on September 17, 2026 and September 21, 2026 respectively.

Scorecard3 real differences · 6 level
Quick Tip CalculatorX versus Lock App: the parameters behind the verdict, then further details
ParameterQuick Tip CalculatorXLock App
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better16.0
Further details — not scored
Size25 MB22 MB
Age rating4+4+
Developerkuo ching liew紫荣 雷

In-app purchases

None

Quick Tip CalculatorX

No in-app purchases

2 purchases

Lock App

Subscriptions2
  • 周VIP会员3 Days trial$4.997 Days
  • Month VIP member3 Days trial$19.991 Month

Questions

Is Quick Tip CalculatorX free?
Quick Tip CalculatorX is free to download, with no in-app purchases.
Is Lock App free?
Lock App is free to download, with in-app purchases available.
Do Quick Tip CalculatorX or Lock App have ads?
Neither Quick Tip CalculatorX nor Lock App shows ads.
Which is updated more often, Quick Tip CalculatorX or Lock App?
Quick Tip CalculatorX ships an update weekly, and Lock App weekly. Most recently, Quick Tip CalculatorX was updated on September 17, 2026 and Lock App on September 21, 2026.

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