Comparison

ADHD Timer vs Mast

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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/

About

Mast

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Odysseus knew he couldn't resist the Sirens, so he had himself tied to the mast. Mast does the same for your phone. Screen Time limits are easy to dismiss. Mast is different: you create commitments, scheduled blocks where your distracting apps lock, and you decide up front what it takes to get them back. Your apps don't just come back when time passes. They unlock when you act. HOW IT WORKS 1. Choose the apps that steal your time: TikTok, Instagram, games, anything. 2. Schedule your commitments: study sessions, work hours, mornings, evenings. 3. Pick your unlock policy, what it takes to earn your apps back: • Photo: snap a photo to prove you did it: gym clothes on, books open, bed made • Timer: run down a focus timer before anything unlocks • Mark done: apps stay locked until you check the task off • Just wait: or simply lock yourself out for a set time WHY IT WORKS Psychologists call it a Ulysses pact: a binding decision you make now, while you're clear-headed, that your weaker future self can't undo. Willpower fails in the moment, so Mast removes the moment. When the commitment starts, the ropes are already tied. There's no "remind me in 15 minutes" to tap through, and the only way out is the one you chose yourself. • Powerful blocking built on Apple's Screen Time technology • Flexible schedules for study, work, sleep or a full digital detox • See the hours you've won back If you have any ideas or questions, please email us at hello@usemast.app. Terms of Use: https://usemast.app/terms

Screenshots

ADHD Timer4 screens
Mast4 screens

Verdict

The call

The clearest difference is iOS requirement: ADHD Timer at 15.1 against Mast'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. ADHD Timer sells 3 in-app purchases, starting at $1.99 per month and Mast sells 2 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 22, 2026 and October 25, 2026 respectively.

Scorecard1 real difference · 8 level
ADHD Timer versus Mast: the parameters behind the verdict, then further details
ParameterADHD TimerMast
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 weeksEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better17.0
Further details — not scored
Size42 MB81 MB
Age rating4+4+
DeveloperMaciej PlanetaThomas Bryden

In-app purchases

3 purchases

ADHD Timer

Subscriptions2
  • Monthly3 Days trial$1.991 Month
  • Annually3 Days trial$14.991 Year
One-time1
  • Lifetime$29.99
2 purchases

Mast

Subscriptions2
  • Mast Plus - Weekly$7.997 Days
  • Mast Plus - Yearly3 Days trial$49.991 Year

Questions

Is ADHD Timer free?
ADHD Timer is free to download, with in-app purchases available.
Is Mast free?
Mast is free to download, with in-app purchases available.
Do ADHD Timer or Mast have ads?
Neither ADHD Timer nor Mast shows ads.
Which is updated more often, ADHD Timer or Mast?
ADHD Timer ships an update every 2 weeks, and Mast every 2 weeks. Most recently, ADHD Timer was updated on October 22, 2026 and Mast on October 25, 2026.

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