Comparison

LustLock vs Thinline

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

Head to head
About

LustLock

This app offers daily support and protection tools for Christians seeking accountability, discipline, and purity. Features include streak tracking, journaling, prayer support, and screen time protection to help users stay focused and avoid distractions.

Highlights
  • Streak tracking
  • Daily check-ins
  • Journaling
  • Prayer support
  • Emergency help button
  • Screen Time protection
  • Accountability tools
Features
Read full description

LustLock helps Christians stay accountable, build discipline, and pursue purity through daily support and protection tools. Track your streak, log daily check-ins, journal your progress, get prayer support, and use emergency help tools when temptation hits. LustLock also includes Screen Time-based protection to help you stay focused and avoid the apps and websites that pull you off track. Features: - Streak tracking - Daily check-ins - Journal entries - Prayer support - Emergency help button - Biblical encouragement - Screen Time-based protection - Accountability tools LustLock Pro unlocks full access to recovery, accountability, and protection features. Subscription options: - Weekly Pro: $6.99 per week - Quarterly Pro: $29.99 per month - Yearly Pro: $44.99 per year Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings. An auto-renewable subscription purchase is required to access LustLock features after onboarding. Available subscription plans and prices are shown in the app before purchase. Privacy Policy: https://lustlockprivacy-site.netlify.app Terms of Use: https://lustlock-terms-of-use.netlify.app

About

Thinline

Features
Read full description

Thinline is a private Christian sin tracker. No account. What you write stays on this phone. You name what you track. Tap to acknowledge. Swipe when you held back. Optional short notes. Charts and a journal show what actually dominated — no streaks, no scores, no partner feed. Resist is one tap away when awareness isn’t enough: Reset, Move, and Story to interrupt an urge. Examination of Conscience is a session-only examen; answers are not saved. Optional App Lock uses Face ID or your device passcode. You can export a backup you control. Thinline requires paid access. The Founders Offer is selected whenever it is available; annual is the fallback. Eligible customers may receive a three-day monthly trial or seven-day annual trial. The Founders Offer is an immediate one-time lifetime purchase with no trial. Restore, export, and delete remain available without a subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms: https://usethinline.app/terms Privacy: https://usethinline.app/privacy

Screenshots

LustLock4 screens
Thinline4 screens

Verdict

The call

The clearest difference is update cadence: Thinline at every 2 days against LustLock's every 2 months. On price, ads, 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. LustLock sells 3 in-app purchases, starting at $6.99 per 7 days and Thinline sells 3 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

LustLock ships an update every 2 months, Thinline every 2 days. The most recent releases landed on October 12, 2026 and October 25, 2026 respectively.

Scorecard1 real difference · 9 level
LustLock versus Thinline: the parameters behind the verdict, then further details
ParameterLustLockThinline
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 2 monthsEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better16.4
Further details — not scored
Size48 MB82 MB
Age rating17+17+
DeveloperMichael BreibartJosip Miljak

In-app purchases

3 purchases

LustLock

Subscriptions3
  • LustLock Weekly Pro3 Days trial$6.997 Days
  • LustLock Quarterly Pro3 Days trial$29.993 Months
  • LustLock Yearly Pro3 Days trial$44.991 Year
3 purchases

Thinline

Subscriptions2
  • Thinline Monthly3 Days trial$6.991 Month
  • Thinline Annual7 Days trial$29.991 Year
One-time1
  • Thinline Founders Offer$39.99

Questions

Is LustLock free?
LustLock is free to download, with in-app purchases available.
Is Thinline free?
Thinline is free to download, with in-app purchases available.
Do LustLock or Thinline have ads?
Neither LustLock nor Thinline shows ads.
Which is updated more often, LustLock or Thinline?
LustLock ships an update every 2 months, and Thinline every 2 days. Most recently, LustLock was updated on October 12, 2026 and Thinline on October 25, 2026.

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