Comparison

ARC vs Lock4Good

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

Head to head
About

ARC

This conference application helps attendees connect with others, manage their personalized schedules, and organize meetings. It features QR code scanning for seamless check-in and access to information, along with interactive session discussions.

Highlights
  • Delegate networking
  • Personalized itinerary
  • Meeting organization
  • QR code check-in
  • Interactive session discussions
Features
Read full description

The ARC conference app allows you to: - Make connections with other delegates - View your full and personalised itinerary - Organise meetings during the conference - QR code scanning for easy check-in and access to information - Fully interact with all sessions discussions

About

Lock4Good

Features
Read full description

####################### Tired of screen time apps that are too easy to unblock? — Same. We believe: The only thing that can keep you off your phone is having to PAY FOR IT! Lock4Good helps you take back control of your phone usage. And if you do want those extra minutes? Buy them. — WE DONATE ALL PROFITS TO A CHARITY OF YOUR CHOICE! SAVE TIME. DO GOOD. ### HOW IT WORKS Pick the apps you want to limit and set your own daily limit for each. Lock4Good tracks your usage in the background. When an app reaches its limit, it is blocked for the rest of the day. Ideally, you stick to your own limits, but if you really want more time, there are four ways to unlock a blocked app: • A free emergency minute, once per app per day, no payment • An optional paid unlock (+5 or +20 minutes) • The automatic reset at midnight • Deleting Lock4Good, which lifts every restriction instantly ### DO GOOD What you buy in Lock4Good is additional screen time. We donate all profits from these unlocks to a charitable organisation of your choice: GiveWell, GiveDirectly, Against Malaria Foundation, Médecins Sans Frontières, Action Against Hunger, Save the Children, WWF, or Amnesty International. You can change it at any time. ### YOU STAY IN CONTROL Lower or delete any limit freely at any time before it is reached. There are no accounts, no logins. Just the functionality you need. ### PRIVACY FIRST Your app selections, limits and usage never leave your device. Crash reporting and analytics are off by default and fully optional.

Screenshots

ARC2 screens
Lock4Good3 screens

Verdict

The call

The clearest difference is in-app purchases: ARC at none against Lock4Good's 2. Lock4Good's advantage is update cadence (every 2 days vs weekly). On price, 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

Both are free to download. Lock4Good sells 2 one-off in-app purchases. ARC asks for nothing beyond the download.

UpkeepUpdate frequency

ARC ships an update weekly, Lock4Good every 2 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
ARC versus Lock4Good: the parameters behind the verdict, then further details
ParameterARCLock4Good
PriceFreeFree
Rating4.3 (25 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings25 — better—
Update frequencyWeeklyEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhoneiPhone
Requires iOS17.017.0
Further details — not scored
Size144 MB4 MB
Age rating17+4+
DeveloperAlliance for Responsible Citizenship LimitedAntonius Freiherr von Strachwitz

In-app purchases

None

ARC

No in-app purchases

2 purchases

Lock4Good

One-time2
  • +5 minutes$0.99
  • +20 Minutes$2.99

Questions

Is ARC free?
ARC is free to download, with no in-app purchases.
Is Lock4Good free?
Lock4Good is free to download, with in-app purchases available.
Do ARC or Lock4Good have ads?
Neither ARC nor Lock4Good shows ads.
Which is updated more often, ARC or Lock4Good?
ARC ships an update weekly, and Lock4Good every 2 days. Most recently, ARC was updated on November 3, 2026 and Lock4Good on October 31, 2026.

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