Comparison

Grass vs Manifold Timer

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

Head to head
About

Grass

Features
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Grass — Focus, Visualized Turn your focused time into visible progress. Grass is a simple focus timer and session tracker that transforms every completed session into a colorful block on your daily timeline and a patch in your growing field. See when you focused, when you rested, and how your focus habits develop over time. There is no complicated productivity system to manage. Choose a duration, start the timer, and focus on what matters. Whether you prefer short study sessions or longer deep-work blocks, every completed session becomes part of your progress. Grow your Grass. Grow yourself. Key Features - Simple Focus and Break Timer Start a focus or break session in seconds with a clean, distraction-free interface. - Daily Focus Timeline See exactly when you focused, rested, and completed each session throughout the day. - Visual Focus History Explore your focus patterns across days, weeks, and months as your completed sessions grow into a field. -Focus Statistics Check your completed sessions, total focus time, break count, and break time at a glance. -Flexible Session Tracking Name your activities, choose colors, and edit or delete completed sessions whenever needed. -Study and Deep-Work Support Use Grass for studying, reading, writing, creative work, daily routines, or Pomodoro-style focus sessions. -iCloud Sync Keep your focus history synchronized across your Apple devices. -Light and Dark Mode Use Grass comfortably throughout the day and night.

About

Manifold Timer

Features
Read full description

Most timers show you a number counting down. Manifold shows you a shape. The face of this timer is a live hyperbolic nested toroid, rendered in real time. It turns while your session runs, and its geometry carries the remaining time — so a glance tells you where you are without pulling you into reading digits and doing arithmetic. It is the rare timer you do not mind leaving on screen. WHAT IT DOES Ā· Focus sessions with a manifold that responds to the time remaining Ā· Alarms that ring at the time you set — through Silent mode and through a Focus Ā· A stopwatch, for when you want the other direction Ā· Live Activities, so the session stays readable on the Lock Screen and in the Dynamic Island Ā· A Home Screen widget for the current session Ā· An Apple Watch app, kept in sync with your phone BUILT NATIVELY SwiftUI and RealityKit, with no game engine underneath. The geometry is generated, not a video loop, so it stays sharp at any size and costs almost nothing to run. PRIVATE BY DEFAULT No account, no analytics, no ads, no backend. Sessions and settings live on your device. Nothing in Manifold flashes or strobes.

Screenshots

Grass3 screens
Manifold Timer4 screens

Verdict

The call

The clearest difference is in-app purchases: Grass at none against Manifold Timer's 1. Manifold Timer's advantage is device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Manifold Timer sells 1 one-off in-app purchase. Grass asks for nothing beyond the download.

UpkeepUpdate frequency

Grass ships an update every 9 days, Manifold Timer every 2 weeks. The most recent releases landed on October 26, 2026 and October 29, 2026 respectively.

Scorecard2 real differences Ā· 4 level
Grass versus Manifold Timer: the parameters behind the verdict, then further details
ParameterGrassManifold Timer
PriceFreeFree
Update frequencyEvery 9 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhoneiPhone, iPad, Apple Watch — better
Requires iOS18.017.0 — better
Further details — not scored
Size5 MB24 MB
Age rating4+4+
DeveloperPaul KimRICHARD ROYAL HOOPES

In-app purchases

None

Grass

No in-app purchases

1 purchases

Manifold Timer

One-time1
  • Manifold Pro$0.99

Questions

Is Grass free?
Grass is free to download, with no in-app purchases.
Is Manifold Timer free?
Manifold Timer is free to download, with in-app purchases available.
Do Grass or Manifold Timer have ads?
Neither Grass nor Manifold Timer shows ads.
Which is updated more often, Grass or Manifold Timer?
Grass ships an update every 9 days, and Manifold Timer every 2 weeks. Most recently, Grass was updated on October 26, 2026 and Manifold Timer on October 29, 2026.

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