Comparison

Rock Lock vs Plainsight

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

Head to head
About

Rock Lock

Features
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Rock Lock helps you lock your apps so you can actually focus. Set a duration, choose which apps to block, and Rock Lock takes care of the rest. LOCK IN A TAP Pick your apps and a duration, then hit Lock Now. Rock Lock uses Apple's Screen Time technology to block your selected apps instantly. Selected apps stay blocked until your session ends. BLOCK EVERYTHING OR JUST THE BAD STUFF Toggle "Lock all apps" to block every app at once, or hand-pick exactly which apps and categories get blocked during your session. You decide how strict to be. LIVE ACTIVITY WIDGET See your remaining focus time right on your Dynamic Island or Lock Screen - no need to open the app. Your countdown is always visible, always ticking. SCHEDULED SESSIONS Set recurring lock sessions that fire automatically - block social media every morning, or lock down every evening after dinner. Rock Lock runs even when you forget. SESSION HISTORY Every completed session is logged so you can see exactly how much distraction-free time you've earned. See your focus minutes add up over time. NO ADS. PRIVATE BY DESIGN. Rock Lock doesn't analyze your app usage or show ads. Your app selections and session history stay on your device. What you lock is your business.

About

Plainsight

Features
Read full description

PlainSight: The Disguised Note Vault Keep your most sensitive notes completely invisible to everyone else. No obvious PIN pads. No suspicious lock screens. Just total privacy, hidden in plain sight. PlainSight looks and functions like a beautiful, minimal note-taking app on the surface—perfect for daily tasks, grocery lists, and quick thoughts. But underneath its calm interface holds a powerful secret. By typing your own custom secret command phrase directly into a standard note field, PlainSight instantly unlocks your hidden workspaces. To an outside observer or anyone browsing your phone, your private vaults don't even exist. HOW IT WORKS: THE SECRET KNOCK CREATE YOUR TRIGGER Choose absolutely any secret phrase or word like .banana, ..manage, or a custom string of text. TYPE TO REVEAL Type your secret phrase anywhere in the text field to instantly slide open your private workspaces. TOTAL PLAUSIBLE DENIABILITY PlainSight doesn't broadcast that you have something to hide. There are no "Incorrect Password" errors or biometric pop-ups to raise suspicion if you hand your phone to a friend, colleague, or family member. POWERFUL PRIVACY, MINIMALIST DESIGN WRITE WITH CLARITY Open instantly into a clean, distraction-free editor. No toolbars, no clutter—just a smooth, fast writing space that stays out of your way. ORGANIZE EFFORTLESSLY Group your sensitive data using lightweight tags and categories. Keep your personal journals, account numbers, business ideas, or travel itineraries meticulously structured. SECURE EMAIL RECOVERY Forget your secret word? Don't panic. You can securely reset your access via an encrypted recovery code sent to your email. Your notes remain completely local, encrypted, and yours—but you'll never be locked out. SECURE REAL-TIME COLLABORATION Need to share a shopping list with a partner or collaborate on a private project with a teammate? Turn any workspace into a shared space. PlainSight syncs instantly across devices in real time, giving you seamless multi-user collaboration without the bloat of heavy corporate productivity tools. FEATURES BUILT TO STAY INVISIBLE Fast writing tools and clean formatting Custom tags and categories Real-time multi-user collaboration Archive, delete, and restore controls Secure workspace management Smooth, instant cloud sync NO SUBSCRIPTIONS. NO SURPRISES. PlainSight is fully free for simple, personal note-taking. If you want advanced power—including multi-user shared workspaces, unlimited hidden spaces, and full real-time cloud sync across devices—unlock everything with a single, small, one-time upgrade. No monthly fees, ever. Protect your thoughts with absolute discretion. Download PlainSight and secure your notes today.

Screenshots

Rock Lock4 screens
Plainsight4 screens

Verdict

The call

The clearest difference is iOS requirement: Plainsight at 15.0 against Rock Lock's 17.0. On price, update cadence, ads and in-app purchases 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. Rock Lock sells 1 one-off in-app purchase and Plainsight sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Rock Lock ships an update fortnightly, Plainsight every 2 weeks. The most recent releases landed on October 2, 2026 and September 29, 2026 respectively.

Scorecard1 real difference · 5 level
Rock Lock versus Plainsight: the parameters behind the verdict, then further details
ParameterRock LockPlainsight
PriceFreeFree
Update frequencyFortnightly — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size12 MB27 MB
Age rating4+4+
DeveloperRon YahavKLEEM STUDIO, LLC

In-app purchases

1 purchases

Rock Lock

One-time1
  • Rock Lock Pro2 variants$2.99
1 purchases

Plainsight

One-time1
  • Plainsight - Private Notes$4.99

Questions

Is Rock Lock free?
Rock Lock is free to download, with in-app purchases available.
Is Plainsight free?
Plainsight is free to download, with in-app purchases available.
Do Rock Lock or Plainsight have ads?
Neither Rock Lock nor Plainsight shows ads.
Which is updated more often, Rock Lock or Plainsight?
Rock Lock ships an update fortnightly, and Plainsight every 2 weeks. Most recently, Rock Lock was updated on October 2, 2026 and Plainsight on September 29, 2026.

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