Comparison

OneStep vs Time Vessel

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

Head to head
About

OneStep

Features
Read full description

OneStep is a minimalist task manager built for people who create things on their own. Whether you’re building a side project, writing a book, or planning something big, OneStep keeps you focused by only showing what’s next. No backlogs, no busywork - just one clear step per project. One task per project Every project shows only one active task - the next step to move forward. When it’s done, add the next one. That’s it. Swipe through your projects Your projects live as cards in a playful, elegant stack. Swipe through them with ease. Task history See what you’ve completed before and look back at your progress. Emoji + color customization Make each project feel personal with emojis and soft color tags. Offline-first No account, no syncing - everything stays on your device with local storage. Distraction-free design OneStep is clean, calm, and focused. No complex features. Just enough to keep moving. Who it’s for: - Indie makers - Students - Designers - Creatives - Anyone managing solo projects who wants to stay focused Why it works: Most productivity tools throw everything at you. OneStep takes the opposite approach. By limiting each project to a single visible task, it reduces stress and helps you stay in flow. Made for solo builders. Feedback or ideas? Reach out any time. Like the app? You can support it with a coffee!

About

Time Vessel

Visualize your day's time as physical materials like liquid, jelly, and solid glass. This app offers an intuitive way to manage your schedule without anxiety-inducing deadlines or complex settings. It helps you understand your time's capacity and encourages rest when your day is full.

Highlights
  • Time physics visualization
  • Liquid, jelly, and solid time materials
  • Intuitive schedule management
  • No anxiety-inducing deadlines
  • Daily task completion feedback
  • Clear all option for fresh start
Features
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Your day only has 24 hours. It is a beaker with an absolutely fixed capacity, not an infinitely stretchable to-do list. Time Vessel provides a brand-new "time physics" perspective. We abandoned complex settings and anxiety-inducing deadlines, visualizing all schedules and external disturbances into the three most intuitive physical materials, allowing you to truly "see" and "touch" the volume of time: Free Liquid: Can be freely manipulated and dragged, but just like real hydraulic principles, it cannot be compressed. Represents tasks that you can arrange flexibly but must guarantee the full duration of focus.
 Elastic Jelly: Excellent extensibility. It can be squeezed and have its compression rate set, but cannot be shifted freely. Represents daily routines with flexible time boundaries that can be adapted at any time.
 Solid Glass: Hard and its position is absolutely locked. It cannot be compressed, nor can it be shifted by other tasks. Represents the sacred and inviolable fixed schedules in your life (e.g., important meetings, force majeure, deep sleep).
 Whether you use it to plan your day in advance or just to record the "occupation" of today by completed tasks, Time Vessel allows you to intuitively perceive: when solid glass and free liquid fill the beaker, there is no extra space left for today. It gently reminds you through physical laws—when the cup is full, it's time to rest. Here, there are no weekly plans, no monthly views, and no automatically generated repeating templates. Because life cannot be accurately predicted, and anxiety often comes from excessive attempts to control the future. Every day is a brand-new day. No red overdue warnings, no mountains of guilt. With a simple swipe or long press, you can truly feel the physical feedback as tasks are completed and dissipated. Whether you swipe away the last arrangement of the day, or choose "Clear All" in the menu at any time to start fresh—no matter how today went, when you wake up tomorrow, you will still be greeted by a clean, translucent vessel. [Pricing & Developer Program] We believe in extreme transparency and sincerity. Time management is a long-term habit. To let you fully and completely experience the physical resistance and settling sound of Time Vessel before deciding to pay, we offer a 7-day free trial. After the trial ends, you can flexibly choose a short-term subscription plan based on your needs; to maintain the purity of the product and indie development, we also retain the most traditional and simple one-time purchase "Lifetime" option. We absolutely do not set sneaky hidden charges, giving the choice entirely back to you.

Screenshots

OneStep4 screens
Time Vessel4 screens

Verdict

The call

The clearest difference is in-app purchases: OneStep at none against Time Vessel's 3. Time Vessel's advantage is update cadence (every 10 days vs every 6 weeks). On price, ads, 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. Time Vessel sells 3 in-app purchases, starting at $2.99 per month. OneStep asks for nothing beyond the download.

UpkeepUpdate frequency

OneStep ships an update every 6 weeks, Time Vessel every 10 days. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
OneStep versus Time Vessel: the parameters behind the verdict, then further details
ParameterOneStepTime Vessel
PriceFreeFree
Rating—4.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 6 weeksEvery 10 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS16.4 — better17.6
Further details — not scored
Size48 MB7 MB
Age rating4+4+
DeveloperMatias Saguir梓华 宋

In-app purchases

None

OneStep

No in-app purchases

3 purchases

Time Vessel

Subscriptions2
  • monthly7 Days trial$2.991 Month
  • YEAR7 Days trial$12.991 Year
One-time1
  • lifetime$24.99

Questions

Is OneStep free?
OneStep is free to download, with no in-app purchases.
Is Time Vessel free?
Time Vessel is free to download, with in-app purchases available.
Do OneStep or Time Vessel have ads?
Neither OneStep nor Time Vessel shows ads.
Which is updated more often, OneStep or Time Vessel?
OneStep ships an update every 6 weeks, and Time Vessel every 10 days. Most recently, OneStep was updated on October 30, 2026 and Time Vessel on October 24, 2026.

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