Comparison

OneThing vs Zenith

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

Head to head
About

OneThing

Read full description

1Thing helps you cut through the noise and focus on what truly matters each day. The concept is simple: choose ONE important goal, lock it in, and give it your full attention. When you're done, close it with context — how much impact it had, how difficult it was. If you gave up, close it honestly and move on. ONE GOAL. NOT A LIST. Most productivity apps overwhelm you with tasks. 1Thing does the opposite — it forces you to ask: "What's the ONE thing that, if I do it today, makes everything else easier?" FEATURES · Set one meaningful goal per day · Lock it in with a two-question validation · Mark it as achieved or resigned with reflection · Weekly history to track your progress · Home screen widget (small and medium) · Daily reminders to define and close your goal · Motivational quotes to keep you focused · Beautiful, distraction-free design YOUR DATA. YOUR DEVICE. Everything stays on your iPhone. No accounts, no cloud, no tracking. Just you and your one thing. 1Thing — because less is more.

About

Zenith

This minimalist productivity app uses the Pomodoro technique with atmospheric visuals and calming breathing exercises to help you achieve deep work. Customize focus sessions, breaks, and choose immersive themes to create a digital sanctuary for enhanced concentration.

Highlights
  • Aesthetic focus with dynamic mesh backgrounds
  • Immersive themes for work ambiance
  • Customizable Pomodoro technique sessions
  • Integrated breathing exercises
  • Live Activities for progress tracking
  • Session tagging for focus insights
Features
Read full description

Make room for one quiet session. Zenith Pomodoro is an atmospheric focus timer for studying, writing, and work. Choose one task, set your session length, and begin with a backdrop that fits your surroundings. A RHYTHM THAT FITS Adjust your focus, short-break, and long-break durations. Start with 25 minutes or choose your own pace. YOUR STUDY ATMOSPHERE Choose animated gradients, solid colors, and atmospheric themes. A selection of themes is included; additional themes and custom colors require Zenith Premium. TIME AT A GLANCE Follow your timer on the Lock Screen with Live Activities, and in the Dynamic Island on supported devices. A PLACE FOR BREAKS Use an optional visual breathing guide during breaks. Classic is included; additional breathing styles require Premium. LOOK BACK AT YOUR SESSIONS Tag sessions by what you worked on and revisit recent focus history. Extended history requires Premium. OPTIONAL SOUND WITH PREMIUM Blend ambient soundscapes in Focus Mix, adjust individual volumes, and choose separate mixes for focus and breaks. Focus Mix requires Zenith Premium. Start with one session. Find a rhythm that fits your routine. Requires iOS 18 or iPadOS 18 or later. Zenith Premium is an optional monthly or annual auto-renewing subscription. Review the purchase and renewal terms in the app before subscribing. Privacy Policy: https://cjamie.github.io/Zenith-Pomodoro-Privacy-Policy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

OneThing4 screens
Zenith3 screens

Verdict

The call

The clearest difference is in-app purchases: OneThing at none against Zenith's 1. Zenith's advantage is update cadence (every 4 days vs every 6 weeks) and iOS requirement (18.0 vs 26.1). 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. Zenith sells 1 in-app purchase, starting at $2.99 per month. OneThing asks for nothing beyond the download.

UpkeepUpdate frequency

OneThing ships an update every 6 weeks, Zenith every 4 days. The most recent releases landed on September 12, 2026 and October 17, 2026 respectively.

Scorecard3 real differences · 7 level
OneThing versus Zenith: the parameters behind the verdict, then further details
ParameterOneThingZenith
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 6 weeksEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhoneiPhone, iPad — better
Requires iOS26.118.0 — better
Further details — not scored
Size3 MB208 MB
Age rating4+4+
DeveloperGrupo Pixeles Latinoamerica, S.A. de C.V.Shahab Darvish

In-app purchases

None

OneThing

No in-app purchases

1 purchases

Zenith

Subscriptions1
  • Premium7 Days trial$2.991 Month

Questions

Is OneThing free?
OneThing is free to download, with no in-app purchases.
Is Zenith free?
Zenith is free to download, with in-app purchases available.
Do OneThing or Zenith have ads?
Neither OneThing nor Zenith shows ads.
Which is updated more often, OneThing or Zenith?
OneThing ships an update every 6 weeks, and Zenith every 4 days. Most recently, OneThing was updated on September 12, 2026 and Zenith on October 17, 2026.

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