IndieRadar
Productivity · App Store · USRed ocean

checklist

checklist app

The signal here is competition saturation, not search demand. You decide; we lay out the evidence.

Demand read

two models, independent (a read, not a measurement)

both agree
Opus
Not wantediOS 미리알림과 메모의 체크리스트로 대부분 충분하고, 전용 체크리스트 앱 1위도 리뷰 2,919개에 그친다.
Codex
Not wanted기본 체크리스트는 iOS 미리 알림과 흔한 할 일 앱으로 충분해 새 앱을 설치할 유인이 약하다.

Two AI reads (Opus and Codex). A judgment, not measured demand. When they split, that is how uncertain it is.

01

How crowded is it

saturation from top-app review concentration

result apps
22
count alone does not show saturation
top-10 review sum
736,431
core saturation signal
#1 app reviews
2,919
dominant incumbent?
top-10 median
26,985
review spread
local-script apps
100%
localization
stale 1yr+
20%
high means a gap

A dominant app with 2,919 reviews owns this space. Avoid a head-on fight, find a narrow gap.

02

Who is already here

top competitor apps (by search relevance)

AppRatingReviews
Checklist – Simple Task ListsKoji Ito4.722,919
To Do List MinimaList & WidgetInner Grow Limited4.7746,117
Habit TrackerInner Grow Limited4.79145,002
Checklist - Get things doneIfeanyi Onuoha3.5616
Lists To doThomas Tsopanakis4.81105,651
Structured: Daily Planner Todounorderly GmbH4.8163,682
Microsoft To DoMicrosoft Corporation4.72264,854
Basic ChecklistDerek Carter4.2421
03

What reviews complain about

from 66 competitor reviews

Data loss / not savinghigh
  • “every morning I found it had reverted to a previous version, with some items deleted and others unchecked”
  • “I spent about an hour making a detailed punch list only to find there is no save button... it died and I lost everything”
  • “If you close out of the app and reopen it, then you have to re-enter everything manually”
  • “sometimes doesn't save my work. Really frustrating to have to do it over again”
Product opportunity

Bulletproof autosave via local persistence and iCloud sync is table stakes. An app that never loses a check would instantly win trust where competitors bleed 1-star reviews.

Paywalled basics (repeating tasks, pro tiers)high
  • “Have to get pro to repeat tasks”
  • “I can’t put anything on repeat which actually beats the whole purpose of downloading the app”
  • “everything needs to be paid for”
  • “the ai thing, you have to pay for like $20 something dollars”
Product opportunity

Keep recurring tasks free. Charge for extras (themes, icons, export), never core list behavior. Free repeats is a direct differentiator against Structured.

Subscription traps and broken lifetime purchasesmedium
  • “in less than a day, I was charged for the full year app... That is not a two day trail”
  • “I paid for the PRO version and it indicated that it was for the lifetime of the app. Now I see that I have to PAY AGAIN”
  • “they had added a “Restore” button in 8 pixel font”
Product opportunity

Honest pricing is a moat here. One-time purchase or clearly labeled trial builds goodwill in a category poisoned by dark patterns.

Can't delete or manage listsmedium
  • “Not possible to delete a checklist when you're done with it”
  • “Couldn't figure out how to delete a checklist after I created it... so I deleted the entire app”
  • “everyone has a hard time figuring out how to delete items. Hint: click and hold”
Product opportunity

Obvious delete (swipe or edit mode, per iOS HIG). Small fix, big review-mover, and several competitors visibly fail it.

Missing recurrence flexibility (weekdays, annual)medium
  • “you cannot schedule reoccurring tasks Monday thru Friday (weekdays), just Daily, Weekly or Monthly”
  • “you also cannot set annual reminders in the case of birthdays”
  • “why can't i make something repeat but only on weekdays”
Product opportunity

Weekday-only and yearly recurrence rules are cheap to build and explicitly requested multiple times.

ADHD / visual planner users want structure, not bloatmedium
  • “as someone with chronic ADHD this app has helped me so much”
  • “really helpful for time blindness”
  • “The more ‘physical’, colorful, and less grid-like this app can be, the better for folks like me”
  • “this app is exactly what i want for schedule the rest of the day”
Product opportunity

A niche wedge: a simple checklist app tuned for ADHD users (visual, low friction, widget-first). Loud, loyal segment in these reviews.

04

Can a solo dev build it

difficulty and risk, broken down

ScopeOne monthServernot needed (on-device)
⚠ Keyword competition is high; big players (Microsoft, Todoist, Structured) dominate top ranks⚠ No network needed, but iCloud sync testing takes time and is where competitors fail⚠ Discoverability: hard to rank on 'checklist' alone as an unknown solo dev

Very buildable as a solo iOS app. Core checklist with local storage + iCloud sync, no backend, no accounts. The engineering bar is low; the bar is polish and trust (never lose data, obvious delete). Realistic scope is about a month for a solid v1 with widgets.

05

If you build it

a one-page brief (a starting point, not the answer)

A dead-simple checklist app that never loses your data and never paywalls the basics.

Who for

People with mild ADHD or busy routines who want a barebones list app with a good widget, and who are tired of subscription pop-ups.

Problem

Users lose tasks to sync bugs, hit paywalls for repeating items, and can't figure out basic actions like deleting a list. The simple end of the market is served by stale apps (last updated 2021-2024) with weak ratings.

MVP features
  • ·Accounts and servers
  • ·AI features
  • ·Subscription-only basic features
  • ·Inbox / task scheduling complexity (this is where Structured frustrates users)
Do not build
    Smallest version

    One list, add/check/delete items, autosave, widget, no ads. Ship in a weekend, add recurrence and multiple lists in week two.

    Monetization

    Free core with a one-time 'Pro' unlock (themes, icons, export, multiple widgets). No subscription. Say so in the App Store description; it is a selling point in this category.

    App name / subtitle ideas
    Checklist Simple: No SubscriptionChecklist - Easy To Do ListsDaily Checklist & WidgetSimple Checklist: Autosave
    06

    Honest warning

    the biggest trap of this opportunity

    The top of this keyword is locked by giants with 100k+ reviews, so your real fight is long-tail ASO and review trust, not features.

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    Data: Apple iTunes Search API + public App Store reviews (App Store · US) · fetched 2026.08.06 · 66 review samples (recent first, max 500/app) · analysis pre-computed in a local batch (subscription LLM), no runtime calls