Kofe Flow vs OnLock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kofe Flow
This app offers a calm Pomodoro timer designed for focused study and deep work. It includes optional distraction blocking and Lock Screen countdowns. Track your progress and sync across devices with a one-time purchase.
- Pomodoro timer with customizable work/break times
- Distraction blocking for apps and websites
- Lock Screen and Home Screen widgets
- Progress tracking for focus sessions
- Cross-device sync between Mac and iPhone
- Live Activities for countdowns
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Make room for one thing at a time. Kofe Flow is a calm Pomodoro timer for study and deep work, with optional distraction blocking and a countdown you can see on your Lock Screen. START WITH ONE FOCUS SESSION Set a focus duration, begin your session, and take a short or long break when you are ready. Adjust your work and break times to suit a study session, writing sprint, or busy day. GIVE DISTRACTIONS A BREAK Focus Guard can block selected apps and websites while a focus session is running. Choose what to shield and enable Screen Time access when you want to use it. Focus Guard is optional. KEEP YOUR TIMER CLOSE Check your countdown with Live Activities and Home Screen or Lock Screen widgets. Use Shortcuts to fit focus sessions into your routine, and enable notifications for session and break endings. SEE YOUR FOCUS ADD UP Review completed focus time and sessions in Progress. Seven-day progress is included free. Lifetime Pro unlocks views covering up to 360 days so you can see your longer-term rhythm. BRING YOUR MAC AND IPHONE TOGETHER With Lifetime Pro, sync timer controls and completed focus history between Mac and iPhone. Start on your Mac, pause on your iPhone, and keep Live Activities updated with timer changes from your Mac. START FREE. UPGRADE ONCE. The local timer, widgets, local Live Activities, Focus Guard, and seven-day progress are included free. Lifetime Pro adds cross-device sync, remote Live Activity updates, and extended focus history with a one-time purchase. No subscription. No ads. No Kofe Flow account to create. Focus Guard requires Screen Time permission. Cross-device sync requires Lifetime Pro and iCloud availability. Detailed app and website activity from your Mac stays on your Mac and is never included in sync.
OnLock
This app enforces focus by locking distracting applications at the operating system level. It uses AI to verify study sessions with photos, ensuring your progress is genuine and building an earned streak. Features include scheduled blocks, intent journaling, and focus intelligence insights.
- OS-level distraction blocking
- AI-verified study sessions
- Streak building
- Scheduled recurring blocks
- Intent journaling
- Focus intelligence insights
- Home screen widgets
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Studying doesn't fail because you're lazy. It fails because Instagram is one swipe away, and willpower is not a strategy. OnLock is the block you can't talk yourself out of. When a session starts, OnLock locks your distractions at the operating system level using Apple's Family Controls. No "5 more minutes." No uninstall trick. The shield holds until you finish. But blocking is the easy part. The hard part is proving the work was real. Before any session counts toward your streak, OnLock's AI reviews a photo of what you did. No proof, no credit. THE SHIELD • Un-bypassable OS-level enforcement built on Apple's Family Controls • Locks the apps that derail you: social, games, browsers, anything • Holds through restarts, app deletion, and panic uninstalls • Schedule recurring blocks for the hours you always slip AI PROOF • Submit a photo of your notes, work, or finished problem set • AI verifies the session was genuine study before your streak counts • Catches the "I just sat there" sessions you'd rather forget • Builds a streak you actually earned THE INTERVENTION • A quiet pause before every session to ask if this is really study time • Journal your intent so distraction has to argue with your own words • Reflect after to see what is actually working THE WHY ON A TIMER • Plot your exams on a real countdown • Every session lands against the clock • See what each lost hour costs you FOCUS INTELLIGENCE • Learns your peak hours, worst blockers, and patterns • Tells you when to study and when to stop pretending • Your data, your insight, never shared ALWAYS ON • Home screen widgets in three sizes • Lock screen complications for glanceable streaks • Quick Study: one tap and you're locked in THE AESTHETIC A calm, editorial interface designed to feel nothing like the apps it replaces. No infinite scroll. No screaming notifications. No dopamine arcade. Just focus. PRIVACY • Screen time data stays on your device • Built on Apple's native Family Controls and Screen Time APIs • Photos for AI proof are reviewed and discarded • No tracking, no sale, no leak FREE Every feature above is included, free. No subscription, no upsells, no locked tools. Stop trying harder. Start being unable. OnLock. The focus you can't undo. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://onlock-api.joshuawang2048.workers.dev/legal/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: OnLock at none against Kofe Flow's 1. OnLock also leads on iOS requirement (16.0 vs 26.0). Kofe Flow's advantage is update cadence (every 5 days vs every 5 weeks). On price, rating, ratings volume 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
Both are free to download. Kofe Flow sells 1 one-off in-app purchase. OnLock asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Kofe Flow against 5.0 for OnLock. Both are backed by a comparable volume of ratings — 3 and 3 respectively.
Kofe Flow ships an update every 5 days, OnLock every 5 weeks. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.
| Parameter | Kofe Flow | OnLock |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (3 ratings) |
| Positive reviews | 94.7% of reviews | — |
| Number of ratings | 3 | 3 |
| Update frequency | Every 5 days — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 26.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | Rahul m | Ting Ting Xu |
Customer experience
Kofe Flow
OnLock
In-app purchases
Kofe Flow
- Kofe Flow Pro Lifetime$14.99
OnLock
No in-app purchases









