Comparison

Sartre vs Fluid Focus App

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

Head to head
About

Sartre

This app helps you manage daily tasks, assignments, and long-term projects to improve productivity and balance. It also includes features for relaxation, reflection, and habit building to support mental well-being.

Highlights
  • Daily task management with prioritized goals
  • Long-term project breakdown into achievable steps
  • Assignment tracking with due dates and categories
  • Daily reflection on happiness and productivity
  • Fun activities, quotes, and media recommendations
  • Habit building support
Features
Read full description

From daily tasks, to assignments from school or work, to long-term projects, Sartre is there to support you, keep you on track, and maximize your fulfillment – ensuring your life is balanced, productive, and happy. It’s also built to help you have fun, reflect on each day, and build long-term habits. Sartre protects your mental health and personal data, keeps you one step ahead, and helps you be yourself – free to explore, create, relax, discover, and learn. Start using the app today! --SARTRE INCLUDES-- DASHBOARD Your go-to operations center for managing each day. Instead of a looming and overwhelming list of tasks, this page is split into the following sections to maximize productivity: 1) Today’s Main Goal – the most important thing you want to achieve that day 2) Three important tasks – additional vital things you want to get done 3) Something that gives me joy – an activity that will de-stress and relax you, preventing you from getting overwhelmed 4) Tasks and activities – everything else you want to get done You can categorize your tasks and activities, and simply tick them off once complete! FUN SECTION This page is purpose-built to help you relax and have fun. You can add your favorite fun activities from a pre-built list, or create your own, and then add these to your daily activities section with ease. The page also contains a Quote of the day, and a riddle to get your brain moving. It even includes recommendations for Books, Movies, and TV Shows which updates regularly! PROJECTS SECTION Here, you’ll be able to manage all the long-term projects you want to get done – from reorganizing your room, to learning to code, to getting great exam grades! Simply split each project into achievable steps, and tick them off as you go along – moving projects into the Completed section. ASSIGNMENTS SECTION Whether for work or school, stay on top of your assignments with this page. Give each assignment a description, a due date, and a category, and see it through to completion. REFLECTION SECTION At the end of each day, it’s vital to take a moment to reflect. With Sartre, you can rate each day from 1-10 in terms of Happiness, Productivity, Personal Development & Learning, Family & Relationships, and Overall. You can then fill in the best and worst things about that day, and what you’re grateful for, before writing a journal entry as short or long as you would like.

About

Fluid Focus App

This app helps you manage screen time and boost productivity by blocking distractions and rewarding healthy digital habits. It offers customizable focus sessions, guided meditations, and smart app blocking features to help you stay present and achieve your goals.

Highlights
  • Rewards for healthier screen time
  • Customizable focus and rest sessions
  • Guided meditation suite
  • Smart app blocking with schedules and time limits
  • Walk to Unlock feature
  • Progress tracking and analytics
  • Community support
Features
Read full description

The world's favourite screen time and productivity rewards app! Take control of your screen time, sharpen your focus, and get rewarded for building healthier digital habits. Whether you're a student chasing better study sessions or a professional looking to eliminate distractions, Fluid Focus is your all-in-one productivity companion. Key Features Rewards for Healthier Screen Time Stay focused and earn Fluid Coins to redeem for: - Weekly wellness rewards (incl. £250 vouchers for your favorite wellness brands!) - Support our amazing partner charity, Mary's Meals — turn your better habits into tangible impact, supporting kids through their education — everybody wins in this virtuous cycle! Focus & Rest Sessions Boost productivity with customizable focus intervals inspired by the Pomodoro Technique, enhanced with science-backed focus music from global leaders in the space, Myndstream. Meditation Suite Recharge your mind with guided meditations from certified mindfulness coaches to reset and refocus between sessions. Smart App Blocking Take control with powerful, flexible rules and schedules that fit your lifestyle: - Schedules — Block distracting apps automatically on selected days and timeframes you set. - App Time — Set a daily time limit for any app; when it's up, the app is blocked. - Screen Time — Keep your overall screen time in check by capping total device usage. - Walk to Unlock — Turn movement into motivation. Set a daily step goal and block distracting apps until you hit it — a healthy habit that gets you moving before scrolling. Fluid Focus uses Apple Health to track your daily steps for the Walk to Unlock feature. Block distracting apps and silence notifications on your schedule and by your rules — so you can stay present, productive, and in control. Track Your Progress Visualize your journey with detailed analytics to measure your digital wellness and productivity habits. Community Support Join thousands of like-minded students and professionals working toward focus, productivity, and healthier screen habits. Why Choose Fluid Focus? Unlike other productivity apps, Fluid Focus combines powerful focus tools with a reward system that makes building better screen habits motivating and fun. Turn distraction into productivity. Reduce stress. Achieve more — and feel great while doing it. Download Fluid Focus today and start your journey toward a more focused, fulfilling life — for free. PRIVATE & SAFE We use Apple's Screen Time API in order to monitor and block apps you use. Installation is easy and takes a few seconds on your iPhone. Your screen time, health, and personal browsing data never leaves your device. TERMS, PRIVACY & CONDITIONS Read on https://www.fluidfocus.app/our-privacy-policy

Screenshots

Sartre4 screens
Fluid Focus App4 screens

Verdict

The call

The clearest difference is in-app purchases: Sartre at none against Fluid Focus App's 2. Sartre also leads on iOS requirement (13.0 vs 17.0). Fluid Focus App's advantage is update cadence (every 10 days vs every 4 weeks). On price, review sentiment, ads and device support 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. Fluid Focus App sells 2 in-app purchases, starting at $5.99 per month. Sartre asks for nothing beyond the download.

UpkeepUpdate frequency

Sartre ships an update every 4 weeks, Fluid Focus App every 10 days. The most recent releases landed on September 13, 2026 and September 28, 2026 respectively.

Scorecard4 real differences · 6 level
Sartre versus Fluid Focus App: the parameters behind the verdict, then further details
ParameterSartreFluid Focus App
PriceFreeFree
Rating—4.9 (10 ratings) — better
Positive reviews100.0% of reviews — better97.8% of reviews
Number of ratings—10 — better
Update frequencyEvery 4 weeksEvery 10 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size21 MB100 MB
Age rating4+12+
DeveloperAliya KhanFluid Focus Ltd

Customer experience

Sartre

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Fluid Focus App

All ratings10 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews92 reviews
Positive97.8%
Neutral0.0%
Negative2.2%

Bugs and requests

Sartre

Not enough reviews yet to summarise bugs or requests.

Fluid Focus App

Reported bugs

2 issues
  • Coins not accruing properly
  • Countdown timer canceling unexpectedly

Requested features

2 requests
  • Dark mode option
  • More customization options for focus sessions

In-app purchases

None

Sartre

No in-app purchases

2 purchases

Fluid Focus App

Subscriptions2
  • Fluid Focus Pro7 Days trial$5.991 Month
  • Fluid Focus Pro7 Days trial$59.991 Year

Questions

Is Sartre free?
Sartre is free to download, with no in-app purchases.
Is Fluid Focus App free?
Fluid Focus App is free to download, with in-app purchases available.
Do Sartre or Fluid Focus App have ads?
Neither Sartre nor Fluid Focus App shows ads.
Which is updated more often, Sartre or Fluid Focus App?
Sartre ships an update every 4 weeks, and Fluid Focus App every 10 days. Most recently, Sartre was updated on September 13, 2026 and Fluid Focus App on September 28, 2026.

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