Comparison

Flow vs OptiSpaces.ai by Spintly

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

Head to head
About

Flow

Enhance concentration and productivity with a scientifically proven method that divides work into timed intervals with breaks. Block distractions, track progress, and sync with calendars for a more focused workflow.

Highlights
  • Pomodoro timer with work/break intervals
  • App and web blocking
  • Statistics tracking
  • Calendar and Health sync
  • Customizable durations
  • Inspirational quotes
  • Metronome
Features
Read full description

Join hundreds of thousands of happy users who enjoy this simple way to stay focused and productive. Use Flow to get things done. Flow is a tiny but mighty app that helps you work on a task, study for school or simply stay focused without being distracted for a certain amount of time. Flow divides your workflow into sections with defined breaks, making it easy to stay focused. This method has been scientifically proven to be an effective way to increase your concentration and motivation while reducing your stress levels. The use of a Pomodoro timer can be a huge boost to your productivity. Use Flow to ... ... concentrate ... work on a task ... study for school ... code all night ... work from home Benefits of this technique • Improved focus and motivation • Increased productivity • Less stress and better health • Better management of interruptions Features • Pomodoro timer with work intervals and breaks • Statistics to keep track of your completed sessions • Notifications to remind you of short breaks • App and web blocking to combat distractions • Commitment mode for self-control • Inspirational quotes for motivation • Metronome for deep focus • Multiple duration options • Custom session title • Apple Calendar sync • Apple Health sync • iCloud sync of stats • Home & Lock Screen Widgets • Support for Live Activities & Dynamic Island YOU MATTER TO US We want to make Flow even better! Please give us your honest feedback in order to help us fix bugs and improve the app. We will regularly update Flow based on your feedback. Thank you! ABOUT US Yugen is a small independent developer studio based in Frankfurt, Germany. Our team is devoted to making great apps that we want to use ourselves. We strive to create products that help people in their everyday life with intuitive user experiences and minimalistic design. QUESTIONS? If you have any questions or problems, feel free to email us. We provide awesome support and love to help! www.flow.app support@flow.app Twitter: flow__app Facebook: flowapp.info Instagram: flowapp.info FLOW PRO Subscriptions will automatically renew unless canceled within 24-hours before the end of the current period through your Apple account. For more information, see our Terms of Use at https://www.flow.app/legal and Apple's Terms of Use (EULA) at https://www.apple.com/legal/internet-services/itunes/dev/stdeula/.

About

OptiSpaces.ai by Spintly

This platform unifies access control, visitor management, and locker access into a single, cloud-powered suite. It offers a seamless and intuitive experience for managing buildings, campuses, and enterprises.

Highlights
  • Unified access control
  • Visitor management
  • Tenant management
  • Locker access
  • Elevator access
  • Video integration
Features
Read full description

OptiSpaces.ai is Spintly’s unified software platform that brings all our solutions under one modern, cloud-powered suite. Your access control, visitor management, tenant management, video integration, locker access, and elevator access systems now operate seamlessly within a single, integrated platform. This transformation spans both the mobile app and the web portal, delivering a consistent, intuitive, and smarter experience for every user from admins and operators to employees and residents. Designed for the future of digital infrastructure, OptiSpaces.ai makes access management faster, more efficient, and effortlessly scalable across buildings, campuses, and enterprises.

Screenshots

Flow4 screens
OptiSpaces.ai by Spintly4 screens

Verdict

The call

The clearest difference is rating: Flow at 4.8 against OptiSpaces.ai by Spintly's 3.4. Flow also leads on review sentiment (86% vs 54%) and ratings volume (1.8K vs 7). OptiSpaces.ai by Spintly's advantage is in-app purchases (none vs 3) and iOS requirement (16.0 vs 26.0). On price, update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Flow sells 3 in-app purchases, starting at $2.99 per month. OptiSpaces.ai by Spintly asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Flow holds the better App Store score, 4.8 against 3.4. That said, the two scores are not equally well evidenced: Flow has 1.8K ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 86% of Flow's written reviews are positive against 54% of OptiSpaces.ai by Spintly's.

UpkeepUpdate frequency

Flow ships an update every 4 weeks, OptiSpaces.ai by Spintly monthly. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

Scorecard7 real differences · 3 level
Flow versus OptiSpaces.ai by Spintly: the parameters behind the verdict, then further details
ParameterFlowOptiSpaces.ai by Spintly
PriceFreeFree
Rating4.8 (1.8K ratings) — better3.4 (7 ratings)
Positive reviews86.1% of reviews — better54.3% of reviews
Number of ratings1.8K — better7
Update frequencyEvery 4 weeks — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, Mac, Apple Watch, Vision Pro — betteriPhone
Requires iOS26.016.0 — better
Further details — not scored
Size86 MB60 MB
Age rating4+4+
DeveloperYugen GmbHSpintly Inc.

Customer experience

Flow

All ratings1,766 ratings
Positive94.4%
Neutral2.6%
Negative3.0%
Written reviews590 reviews
Positive86.1%
Neutral4.9%
Negative9.0%

OptiSpaces.ai by Spintly

All ratings7 ratings
Positive57.1%
Neutral0.0%
Negative42.9%
Written reviews35 reviews
Positive54.3%
Neutral5.7%
Negative40.0%

Bugs and requests

Flow

Reported bugs

4 issues
  • Live activity feature not working consistently
  • Timer not recording sessions accurately
  • App blocking functionality not working as expected
  • Crashes and freezes on certain macOS versions

Requested features

6 requests
  • Allow custom work and break durations
  • Add option to pause and resume flow sessions
  • Implement real-time sync across devices
  • Provide more detailed productivity tracking and reporting
  • Include an Apple Watch app with complication support
Show 1 more
  • Add ability to block notifications from certain apps during flows

OptiSpaces.ai by Spintly

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Flow

Subscriptions2
  • Monthly Plan7 Days trial$2.991 Month
  • Yearly Plan14 Days trial$17.991 Year
One-time1
  • Lifetime Pro Access$39.99
None

OptiSpaces.ai by Spintly

No in-app purchases

Questions

Is Flow free?
Flow is free to download, with in-app purchases available.
Is OptiSpaces.ai by Spintly free?
OptiSpaces.ai by Spintly is free to download, with no in-app purchases.
Which has better reviews, Flow or OptiSpaces.ai by Spintly?
Flow is rated higher. Flow averages 4.8 out of 5 from 1.8K ratings, while OptiSpaces.ai by Spintly averages 3.4 from 7 ratings.
Do Flow or OptiSpaces.ai by Spintly have ads?
Neither Flow nor OptiSpaces.ai by Spintly shows ads.
Which is updated more often, Flow or OptiSpaces.ai by Spintly?
Flow ships an update every 4 weeks, and OptiSpaces.ai by Spintly monthly. Most recently, Flow was updated on November 6, 2026 and OptiSpaces.ai by Spintly on November 3, 2026.

Other comparisons