Timer Machine vs Acid Interval
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Timer Machine
Manage your time effectively with three customizable timers. Set personalized alert sounds to suit your workflow for work, study, or personal projects. This app offers an intuitive interface for a more organized approach to your day.
- Three personalized timers
- Customizable alert sounds
- User-friendly interface
- Time management for work and study
- Intuitive design
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Discover the ease of time management with Timer Machine, an app offering three personalized timers in a user-friendly and intuitive interface. Customize each timer to fit your unique needs, complete with your preferred alert sounds. Ideal for efficiently tracking various activities, Timer Machine simplifies your daily routine, whether it's for work, study, or personal projects. Embrace a more organized approach to your time with this elegantly designed app. Download Timer Machine now and experience the simplicity of personalized timing!
Acid Interval
This focus timer offers a visually unique approach to deep work, moving away from traditional interfaces. It provides customizable timers and engaging visual feedback to help users stay on task, even with the screen off. The app prioritizes a distraction-free experience with no account or data syncing required.
- Unique visual interface
- Customizable timer intervals
- Engaging animation mechanisms
- Screen-off notifications
- No account or data sync
- Phone lock compatibility
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A focus timer worth looking at. Most focus timers look like a spreadsheet with a countdown in it. This one is built the other way round. A single enormous numeral, bleeding off the edge of a field of acid green. Behind it, a mechanism that moves once per second, locked to the clock and never drifting. Rings that bounce, breathe, ripple inward, or pass momentum down a Newton's cradle. When you start a session the whole field inverts to black and the numbers light up like something switched on behind them. Tap anywhere to start. Swipe to change the mechanism. Double-tap to change the colour. You never have to open a menu. 25/5, 50/10, 90/20, or count up. The classic pomodoro, longer ultradian blocks, or open-ended flow when you don't want a deadline. Timed properly. Built on timestamps, not ticks. Lock your phone, switch apps, come back: it is exactly where it should be. It tells you when you are done, even with the screen off. No account. No sync. No data leaves your phone. ACID INTERVAL PRO One payment unlocks all eight mechanisms, all seven colourways, and custom interval lengths. The timer itself is free and always will be.
Screenshots
Verdict
The clearest difference is rating: Acid Interval at 5.0 against Timer Machine's 3.8. Timer Machine's advantage is in-app purchases (none vs 1) and ratings volume (20 vs 1). On price and ads 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. Acid Interval sells 1 one-off in-app purchase. Timer Machine asks for nothing beyond the download.
Acid Interval holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Timer Machine has 20 ratings behind it against 1, so its average is the more settled of the two.
| Parameter | Timer Machine | Acid Interval |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (20 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 20 — better | 1 |
| Update frequency | Every 5 months | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 14 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Montage App, Inc. | Preston Carr |
Customer experience
Timer Machine
Acid Interval
In-app purchases
Timer Machine
No in-app purchases
Acid Interval
- Acid Interval Pro$2.99
Questions
Is Timer Machine free?
Is Acid Interval free?
Which has better reviews, Timer Machine or Acid Interval?
Do Timer Machine or Acid Interval have ads?
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