Comparison

OneTh1ng vs Ichi

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

Head to head
About

OneTh1ng

This app enforces focus by allowing only one task at a time. Attempting to add a new task will delete the existing one permanently. Tasks are automatically deleted if neglected for too long, encouraging completion.

Highlights
  • Single task focus
  • Permanent task deletion
  • Automatic task removal
  • Consequence-driven productivity
  • Simple interface
Features
Read full description

You don't need another todo list. You need consequences. OneTh1ng only lets you have one task. Try to add another? The first one dies. Forever. No undo. No mercy. Just a graveyard of your abandoned intentions. Leave a task too long? It decays. Neglect it for a week? Auto-deleted. Cause of death: you. Simple. Brutal. Effective.

About

Ichi

Features
Read full description

Ichi is the calmest way to do one thing at a time. Most to-do apps hand you a wall of tasks and a quiet feeling of dread. Ichi does the opposite: it collapses the whole list down to a single, beautiful screen — the one thing you're on right now. Finish it, and the next one rises gently into place. Reach the end, and the screen quietly exhales: all clear. No due dates. No "overdue." No streaks to protect, no caps to hit, no ads. Just the next thing, and the calm of knowing nothing is slipping through. ONE TASK, FRONT AND CENTER • Your single most important task, in beautiful big type • Complete it and the next one rises into place — a calm move, never confetti • An ordered "Up next" queue you reorder with a drag; the top becomes now CAPTURE WITHOUT FRICTION • Add a task in a tap — from the app, a Home Screen widget, the Share Sheet, or a word to Siri • Everything new waits quietly in the queue until you're ready for it • Nothing is ever silently deleted A WIDGET THAT'S NEVER STALE • Glance at your current task from the Home Screen, Lock Screen, or StandBy • It reads the same source as the app, so it always shows the true next thing MADE TO FEEL GOOD • Spring-physics motion, considered haptics, and Liquid Glass materials • Four hand-tuned themes — Warm Paper and Cool Mist free; Nocturne and Aurora with Pro • Light and dark, full Dynamic Type, VoiceOver, and Reduce Motion support • Private by design — your tasks sync through your own iCloud, never our servers ICHI PRO Every feature is free, forever. Pro is purely for the beauty: the Nocturne and Aurora themes, the StandBy nightstand widget, and alternate app icons. Pro is available as a one-time purchase or a yearly auto-renewable subscription, and is always restorable. Pro never sells capacity, there are no caps to lift. Do one thing. Then the next. — Ichi Pro (yearly) is an auto-renewable subscription. Payment is charged to your Apple ID at confirmation of purchase. The subscription renews automatically for the same price and duration unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. A one-time lifetime purchase is also available. Terms of Use (EULA): https://ichi.quyctd.dev/terms Privacy Policy: https://ichi.quyctd.dev/privacy

Screenshots

OneTh1ng4 screens
Ichi4 screens

Verdict

The call

The clearest difference is in-app purchases: OneTh1ng at none against Ichi's 2. OneTh1ng also leads on iOS requirement (15.1 vs 26.0). On price, 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. Ichi sells 2 in-app purchases, starting at $1.99 per year. OneTh1ng asks for nothing beyond the download.

Scorecard2 real differences · 7 level
OneTh1ng versus Ichi: the parameters behind the verdict, then further details
ParameterOneTh1ngIchi
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better26.0
Further details — not scored
Size26 MB3 MB
Age rating9+4+
DeveloperFranci PenovDinh Quy

In-app purchases

None

OneTh1ng

No in-app purchases

2 purchases

Ichi

Subscriptions1
  • Ichi Pro$1.991 Year
One-time1
  • Ichi Pro (Lifetime)$5.99

Questions

Is OneTh1ng free?
OneTh1ng is free to download, with no in-app purchases.
Is Ichi free?
Ichi is free to download, with in-app purchases available.
Do OneTh1ng or Ichi have ads?
Neither OneTh1ng nor Ichi shows ads.

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