Comparison

Linear Timer+ vs Groundwork

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

Head to head
About

Linear Timer+

This app provides a visually minimal interval timer to enhance focus and build routines. It allows for multiple simultaneous timers, customizable intervals with color-coding, and features like Pomodoro mode and scheduled starts. Smart audio cues and second-level precision support various activities.

Highlights
  • Run multiple independent timers
  • Customizable intervals with color-coding
  • Pomodoro mode with configurable durations
  • Scheduled timers for automatic starts
  • Save and reuse timer presets
  • Voice, haptic, and transition sound cues
  • Second-level duration support
Features
Read full description

Linear Timer+ is an interval timer built for people who work in structured blocks — focus sessions, workout sets, study sprints, cooking timers, or any sequence of named activities. Most timers count down to zero. Linear Timer+ lets you build a full sequence: 25 minutes of FOCUS, 5 minutes of BREAK, then repeat. Each interval has its own label, duration, and color. The timer moves through them automatically, chiming at each transition. Named intervals — call them whatever reflects your actual work. DEEP WORK. STRETCH. COOLDOWN. COLD PLUNGE. Your labels, your rhythm. Live Activity — the timer stays visible on your lock screen and in the Dynamic Island. See your current interval and a live progress bar without touching your phone. Works with screen off — sounds and voice cues fire reliably in the background. Lock your phone and walk away. Logbook — a private on-device record of your focus history. Total time, weekly comparison, a 7-day chart, and time broken down by each of your activity labels. No punishing streaks — just honest information about how you actually spend structured time. Voice cues — optional spoken announcements at each transition: the interval name, time remaining, what's coming up next. Multiple timers — run independent sessions side by side. A workout and a work block at the same time. Scheduled starts — set timers to auto-start at specific times on specific days. Presets — save your favorite configurations and load them in one tap. Pomodoro mode — classic 25/5 technique built in, no setup needed. 100% private — no accounts, no cloud sync, no analytics. All data stays on your device. The Logbook has never seen the internet.

About

Groundwork

Features
Read full description

GROUNDWORK is the habit app built for people who know what they should do — and can't make themselves start. THE ONE HABIT RULE GROUNDWORK lets you track exactly ONE habit at a time. Not ten. Not five. One. The second habit only unlocks after 21 consecutive completions of the first. This sounds limiting. It isn't. It's the only thing that works if your brain tends toward ADHD, anxiety, perfectionism, or burnout. Most habit apps fail you because they let you add too much. GROUNDWORK doesn't. THE QUIZ THAT ACTUALLY LISTENS Before you start, GROUNDWORK asks 7 questions — not about preferences, but about your actual pattern. When you fall off. How many apps you've tried. The result is a habit that fits your brain, not a generic template. SMART REMINDERS GROUNDWORK only sends reminders during the windows you actually have free — and, when it can, at moments you're genuinely still. Never at 7AM if you were never a morning person. WHO IT'S FOR - Tech professionals with ADHD (diagnosed or suspected) - People recovering from burnout - High-functioning anxiety sufferers who are "functioning" but exhausted - Perfectionists who start 10 habits and finish 0 FREE The full quiz, your personalized habit, streak tracking, basic reminders, and 4-7-8 breathing. PREMIUM (weekly or yearly) Smart context-aware reminders, mood and habit insights, the full breathing library, unlimited streak history, and Family Sharing. Privacy-first: 100% on-device. No accounts. No servers. No data collected, ever. GROUNDWORK. The groundwork is the work. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Linear Timer+4 screens
Groundwork4 screens

Verdict

The call

The clearest difference is in-app purchases: Linear Timer+ at none against Groundwork's 2. Linear Timer+ also leads on iOS requirement (13.0 vs 17.0). Groundwork's advantage is update cadence (every 3 weeks vs every 2 months). 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. Groundwork sells 2 in-app purchases, starting at $6.99 per 7 days. Linear Timer+ asks for nothing beyond the download.

UpkeepUpdate frequency

Linear Timer+ ships an update every 2 months, Groundwork every 3 weeks. The most recent releases landed on October 18, 2026 and October 8, 2026 respectively.

Scorecard3 real differences · 7 level
Linear Timer+ versus Groundwork: the parameters behind the verdict, then further details
ParameterLinear Timer+Groundwork
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, Mac, Apple TV — better
Requires iOS13.0 — better17.0
Further details — not scored
Size20 MB4 MB
Age rating4+4+
DeveloperThe InfoDump LLCHUGO ANATOLE PAUL MORICEAU

In-app purchases

None

Linear Timer+

No in-app purchases

2 purchases

Groundwork

Subscriptions2
  • Premium Weekly7 Days trial$6.997 Days
  • Premium Annual7 Days trial$39.991 Year

Questions

Is Linear Timer+ free?
Linear Timer+ is free to download, with no in-app purchases.
Is Groundwork free?
Groundwork is free to download, with in-app purchases available.
Do Linear Timer+ or Groundwork have ads?
Neither Linear Timer+ nor Groundwork shows ads.
Which is updated more often, Linear Timer+ or Groundwork?
Linear Timer+ ships an update every 2 months, and Groundwork every 3 weeks. Most recently, Linear Timer+ was updated on October 18, 2026 and Groundwork on October 8, 2026.

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