Celtic Timer vs Linear Timer+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Celtic Timer
This app helps coordinate group timers for boss battles in Celtic Heroes. Create private groups, invite members, and ensure everyone has synchronized, up-to-date timers for strategic gameplay.
- Group timer creation
- Private group invitations
- Synchronized boss timers
- Up-to-date timer information
- Customizable group names
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This is a Timer app created for synced boss timers for Celtic Heroes. Create your own group name and password and invite your members and always have up to date timers!
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.
- 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
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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.
Screenshots
Verdict
The clearest difference is review sentiment: Linear Timer+ at 100% against Celtic Timer's 33%. Linear Timer+ also leads on rating (5.0 vs 3.6). Celtic Timer's advantage is update cadence (daily vs every 2 months) and ratings volume (18 vs 2). On price, ads, in-app purchases and monetization model 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Linear Timer+ holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: Celtic Timer has 18 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 33% of Celtic Timer's written reviews are positive against 100% of Linear Timer+'s.
Celtic Timer ships an update daily, Linear Timer+ every 2 months. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.
| Parameter | Celtic Timer | Linear Timer+ |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (18 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 33.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 18 — better | 2 |
| Update frequency | Daily — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 48 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Michael Boeding | The InfoDump LLC |
Customer experience
Celtic Timer
Linear Timer+
In-app purchases
Celtic Timer
No in-app purchases
Linear Timer+
No in-app purchases









