Comparison

theGoodSpace vs Mast

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

Head to head
About

theGoodSpace

Features
Read full description

Your calendar shows when you're free. theGoodSpace shows when you're good. A free hour at nine in the morning isn't the same as a free hour at three in the afternoon. Most of us get about four good hours a day, when hard thinking feels easy, and spend them on email. theGoodSpace learns when yours are from your sleep and your body clock, and helps you put each task at the hour you'll do it best. YOUR TASKS, ON YOUR CALENDAR Your events and your tasks together, by week, day and month. Apple Calendar and Google Calendar show as busy time, and Apple Reminders stay in sync. Plan finds a time for tasks that don't have one, around your meetings and where your energy suits them. FREE ISN'T THE SAME AS GOOD Your energy runs down your calendar all day: Focus, Steady, Recharge and Wind down. Open the app and see your energy now, what to do next, and when your next good window starts. HARD WORK IN YOUR GOOD HOURS Writing, planning and deep thinking go in your Focus hours, errands and admin in the afternoon dip, and your evenings stay yours. JUST TALK Spill turns what's on your mind into tasks, with their times, energy, deadlines and places. Photos and forwarded emails work too. SAVE WHAT YOU FIND Share a video, post or page to theGoodSpace and it keeps the few points worth remembering, by date or by topic. With Pro, they come back under the tasks they help with, just before you start. ASK YOUR ASSISTANT Connect your AI assistant to ask about your energy and your day, or to have it add tasks for you, with Pro. IT KEEPS UP WITH YOU Reminders move when your plans do, find you when you arrive somewhere, and tell you when your good hours start. AT A GLANCE Widgets for your Home Screen and Lock Screen, and an Apple Watch app with your energy and today's tasks on your wrist. On iPhone Duo, your week and day sit side by side. THEGOODSPACE PRO Plan and more come with Pro, an optional subscription. It renews automatically unless cancelled at least 24 hours before the period ends; manage it in your Apple Account settings. Health and data: theGoodSpace reads sleep and activity from Apple Health to estimate your energy. It is not a medical device and does not diagnose or treat any condition. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Mast

Read full description

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

theGoodSpace4 screens
Mast4 screens

Verdict

The call

The clearest difference is device support: theGoodSpace at 3 against Mast's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. theGoodSpace sells 2 in-app purchases, starting at $4.99 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

theGoodSpace ships an update every 11 days, Mast every 2 weeks. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.

Scorecard1 real difference Ā· 5 level
theGoodSpace versus Mast: the parameters behind the verdict, then further details
ParametertheGoodSpaceMast
PriceFreeFree
Update frequencyEvery 11 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS18.017.0 — better
Further details — not scored
Size65 MB81 MB
Age rating4+4+
DeveloperShreyas KrishnamurthyThomas Bryden

In-app purchases

2 purchases

theGoodSpace

Subscriptions2
  • Monthly Access$4.991 Month
  • Yearly Access7 Days trial$39.991 Year
2 purchases

Mast

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

Questions

Is theGoodSpace free?
theGoodSpace is free to download, with in-app purchases available.
Is Mast free?
Mast is free to download, with in-app purchases available.
Do theGoodSpace or Mast have ads?
Neither theGoodSpace nor Mast shows ads.
Which is updated more often, theGoodSpace or Mast?
theGoodSpace ships an update every 11 days, and Mast every 2 weeks. Most recently, theGoodSpace was updated on November 9, 2026 and Mast on November 5, 2026.

Other comparisons