On vs ADHD Timer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
On
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On-Timer helps people with ADHD be on time for meetings with a 3-stage alarm sequence that coaches you through preparation. HOW IT WORKS On-Timer reads your calendar and lets you set three coaching alarms for any meeting: • Get Ready (30 min before) — "Time to wrap up!" • Get Set (15 min before) — "Head to your desk!" • Go! (1 min before) — "Join now — you've got this!" All timings are configurable in Settings. TWO REMINDER LEVELS • Alert (blue bell) — Standard time-sensitive notification • Alarm (red bell, iOS 26+) — Prominent AlarmKit alarm that breaks through Focus and silent mode, so you'll always hear it VISUAL COUNTDOWN A full-screen countdown view with a kitchen-timer dial and chevron stage indicator shows exactly how long until your meeting. The chevron motif (orange → yellow → green) tracks your progress across the app, widgets, Dynamic Island, and Live Activity. Tap any meeting to view full event details — attendees, notes, location — without leaving the app. APPLE WATCH A full Apple Watch app with meeting list, countdown view, alarm toggle, and "I'm Ready" rewards. Paired iPhone and Watch sync over Bluetooth for near-instant updates, so an alarm set on one appears on the other right away. Four complication styles — corner, circular, rectangular, and inline — keep your next alarm visible on any watch face. ICLOUD SYNC Blue-bell Alerts sync between your iPhones and iPads via iCloud, so the alarms you set on one device follow you to the others. LIVE ACTIVITY & DYNAMIC ISLAND A persistent countdown on your Lock Screen and Dynamic Island from the first alarm stage until the meeting starts. HOME & LOCK SCREEN WIDGETS Small and medium Home Screen widgets, plus circular, rectangular, and inline Lock Screen widgets — all with chevron progress indicators. AI MEETING PREP On-device Apple Intelligence suggestions help you prepare for each meeting based on its title, timing, attendees, and notes. Requires an Apple Intelligence-capable device on iOS 26+. "I'M READY" REWARDS Tap the button during Get Ready or Get Set to celebrate with confetti and unlock a personal micro-reward from your custom list. ALSO • Volume-off detection warns you if your phone is silenced and offers to upgrade to the red Alarm tier • Past alarmed meetings shown for quick reference • Pull-to-refresh, and automatic refresh when your calendar changes REQUIREMENTS • iOS 17.6+ (core features) • watchOS 10+ (Apple Watch) • iOS 26+ on an Apple Intelligence-capable device (red Alarm tier and AI prep) • iCloud account for cross-device sync • Calendar and notification permissions
ADHD Timer
This app makes time visible with a color-changing screen and vibration pulses as deadlines approach. It helps you accurately estimate task durations by tracking actual time spent versus your guesses, improving future planning.
- Visual countdown timer with color changes
- Task mode for estimating and tracking time
- Planning multiplier for estimate accuracy
- Focus routines for sequential timers
- Home screen widget for quick start
- Colorblind-friendly palette
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You don't have a motivation problem. You have a time problem — you genuinely can't feel it passing, so a "quick" task eats the afternoon and you never see it coming. This app works on that from both ends: making time visible while it passes, and showing you how badly you misjudge it. WATCH TIME PASS The whole screen is the timer. It shifts from calm green to amber to urgent red as your deadline approaches, so you always know where you stand without reading a number. Vibration pulses intensify in the final stretch. No tiny digits, no abstract progress ring — just color you can read from across the room. FIND OUT HOW LONG THINGS REALLY TAKE Switch to Task mode, name what you're doing, and guess the time. When your estimate runs out the timer doesn't quietly stop — it asks whether you actually finished. If you didn't, it keeps counting, and the real duration is what gets recorded. Not the one you hoped for. YOUR PLANNING MULTIPLIER After five tracked tasks, a single number tells you how far off your estimates are. 1.7x means a task you think is 30 minutes usually runs 52. It's broken down task by task, so you learn which work always overruns and which you actually judge well. KNOW BEFORE YOU START Set 25 minutes on something you've done before and the app tells you what it will really take. Plan against your own history instead of your optimism. SCHEDULE IT, AND ACTUALLY ARRIVE Put a task on a day and time with your own estimate, and the app reminds you 25 minutes before, 5 minutes before, and when it's time to start. The reminders don't just say "soon" — they tell you what that task really runs to, so "in 25 minutes" becomes an amount of time you can feel. Tap one and the timer is set up and waiting. Miss one and nothing nags you. ALSO INSIDE • Focus Routines — chain timers into a sequence and just hit start • Insights — this week's focus time, plus sessions, streaks and patterns with Pro • A Home Screen widget to start a session without opening the app • Presets from 5 to 45 minutes, plus custom lengths • A colorblind-friendly palette • No account. Nothing to set up. It works offline. Free to use: the timer, Task mode, the estimate gate, your first three forecasts, your first custom timer and one scheduled task cost nothing. Pro unlocks your full planning multiplier, unlimited forecasts, custom timer lengths, unlimited scheduled tasks, your own routines, full Insights and complete history. Built for ADHD brains that can't feel time passing. Because when time is invisible, focus breaks — and every estimate is a guess. Privacy Policy: https://maciejplaneta.github.io/privacy-policies/time-blindness-timer/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: On at none against ADHD Timer's 3. ADHD Timer's advantage is update cadence (every 8 days vs every 6 weeks) and device support. On price 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. ADHD Timer sells 3 in-app purchases, starting at $1.99 per month. On asks for nothing beyond the download.
On ships an update every 6 weeks, ADHD Timer every 8 days. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.
| Parameter | On | ADHD Timer |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 6 weeks | Every 8 days — better |
| Ads | — | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | — | iPhone, iPod — better |
| Requires iOS | 17.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 13 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Digital Advisory Limited | Maciej Planeta |
In-app purchases
On
No in-app purchases
ADHD Timer
- Monthly3 Days trial$1.991 Month
- Annually3 Days trial$14.991 Year
- Lifetime$29.99









