Comparison

Stacks vs FlowState

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

Head to head
About

Stacks

Organize and share moments, ideas, and lists with others. Create private or shared collections for anything from restaurants to trip plans, and collaborate with friends and family by adding photos, links, and places.

Highlights
  • Create private or shared stacks
  • Add photos, videos, text, links, and places
  • Organize lists, plans, recommendations, and memories
  • Collaborate with friends and family
  • React, comment, and keep ideas moving
  • Quickly save content into the right stack
Features
Read full description

Stacks helps you organize and share moments, ideas, plans, and everyday lists with the people who matter. Create a stack for anything: restaurants to try, trip plans, grocery lists, photos, links, places, chores, quotes, games, or ideas you do not want to lose. Add cards, keep everything in one place, and invite others to view or contribute. Whether you are planning with friends, saving recommendations, or keeping track of life’s little details, Stacks makes shared organization feel simple and visual. Key features: - Create private or shared stacks - Add photos, videos, text, links, and places - Organize lists, plans, recommendations, and memories - Collaborate with friends and family - React, comment, and keep shared ideas moving - Quickly save content into the right stack Stacks is a flexible home for the things you want to remember, plan, and share.

About

FlowState

Read full description

Tell FlowState what kind of brain showed up today. It'll show you the tasks that fit. Built for ADHD brains — and anyone whose focus comes and goes — FlowState matches your to-do list to your current energy. Scattered, steady, locked, or foggy. The tasks that fit surface. The ones that don't get out of the way. ENERGY-MATCHED TASKS Pick the level of focus you actually have. Low-focus surfaces errands and emails. High-focus brings the deep work forward. Foggy days hide the list entirely and offer one gentle action — because some days, that's the win. BRAIN-DUMP TO TASKS Paste a wall of "I need to…" and FlowState rewrites it into clean, action-oriented tasks. It drops the filler ("I have to", "remember to"), starts each title with a verb, and tags an energy level so you know when to do it. RIGHT-SIZED FOCUS TIMER 5 minutes when scattered. 25 when steady. No cap when locked in. The timer follows you out of the app via Live Activity and Lock Screen widgets, so the session stays alive even when your attention doesn't. ROUTINES THAT KNOW THEIR PLACE Morning, midday, or evening routines with optional reminders. They show up where they belong instead of nagging from a separate tab. CALENDAR ALONGSIDE TASKS Read your iOS calendar so events and tasks live side by side. Calendar content never leaves your device. PARK WITHOUT SHAME Brain hijack mid-session? Park the task. Come back when you're ready. No streak to defend, no chain to break. CALM BY DESIGN No streaks. No badges. No daily score. No green ticks judging you for the day you missed. The only celebration is the quiet one when you finish a task. WHAT'S INCLUDED IN PRO • Energy-matched task list • Foggy rest mode • Right-sized focus timers • Live Activity + Lock Screen • Routines with reminders • Calendar import • Brain-dump AI assistant • Park-without-shame TRY IT FREE 3-day free trial. Cancel anytime from iOS Settings before the trial ends — keeps Pro until the trial's last minute, no charge. SUBSCRIPTION DETAILS • FlowState Pro: 3-day free trial, then auto-renewing subscription • Payment is charged to your Apple ID at the end of the trial • Subscription auto-renews unless canceled at least 24 hours before the current period ends • Manage or cancel anytime in Settings → Apple ID → Subscriptions PRIVACY Your tasks sync over an authenticated connection with row-level security. Calendar events and dictation audio stay on your device. We never sell your data, never run ads, and never use your content to train AI models. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://flow-state-adhd.pages.dev

Screenshots

Stacks1 screens
FlowState4 screens

Verdict

The call

The clearest difference is in-app purchases: Stacks at none against FlowState's 3. Stacks also leads on ads (none vs shown). FlowState's advantage is update cadence (every 3 weeks vs every 4 months). On price, device support and iOS requirement 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. FlowState sells 3 in-app purchases, starting at $4.99 per 7 days. Stacks asks for nothing beyond the download.

UpkeepUpdate frequency

Stacks ships an update every 4 months, FlowState every 3 weeks. Both last shipped on October 31, 2026.

Scorecard3 real differences · 6 level
Stacks versus FlowState: the parameters behind the verdict, then further details
ParameterStacksFlowState
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS16.4 — better17.0
Further details — not scored
Size99 MB21 MB
Age rating4+4+
DeveloperDerainged LLCFlock Technologies Incorporated

In-app purchases

None

Stacks

No in-app purchases

3 purchases

FlowState

Subscriptions3
  • FlowState Pro$4.997 Days
  • FlowState Pro$14.991 Month
  • FlowState Pro3 Days trial$59.991 Year

Questions

Is Stacks free?
Stacks is free to download, with no in-app purchases.
Is FlowState free?
FlowState is free to download, with in-app purchases available.
Do Stacks or FlowState have ads?
FlowState shows ads; Stacks does not.
Which is updated more often, Stacks or FlowState?
Stacks ships an update every 4 months, and FlowState every 3 weeks. Most recently, Stacks was updated on October 31, 2026 and FlowState on October 31, 2026.

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