Intervals vs Arrebol
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Intervals
This app helps you track recurring tasks and habits by counting the time elapsed since you last completed an activity. It's designed to free your mind from remembering when you last did something, offering a simple way to monitor daily life activities.
- Elapsed time tracking
- Habit monitoring
- Recurring task management
- Customizable trackers
- Simple interface
Read full descriptionHide full description
Track habits without the pressure How long has it been since you last watered the plants? Changed your car's oil? Called your parents? Or washed the bed sheets? Intervals is a beautifully simple elapsed-time tracker designed to help you keep tabs on the recurring tasks and habits in your daily life. Instead of counting down to a deadline, Intervals counts up—showing you exactly how many days, hours, and minutes have passed since you last completed an activity. Free your mind from trying to remember when you last did something. Just create a tracker, tap it when you finish the task, and let Intervals do the remembering for you. Perfect for Tracking: Home Maintenance: Changing water filters, washing bedding, deep cleaning rooms. Car Care: Oil changes, tire pressure checks, renewing registration. Health & Personal: Haircuts, replacing your toothbrush, taking medication. Pets: Flea and tick medication, grooming, vet visits. Habits: Tracking streaks, monitoring time between coffee breaks, or maintaining "inbox zero."
Arrebol
This app provides accurate sunrise and sunset times for your current location. It offers beautiful widgets and lock screen displays, working entirely offline with no data collection. Ideal for those who enjoy nature's daily cycles and value privacy.
- Automatic location-based calculations
- Home screen widgets
- Lock screen time display
- Manual location search
- Offline functionality
- Privacy-focused
Read full descriptionHide full description
Will tonight's sunset be worth heading out for? Arrebol helps you plan golden hour and blue hour, see how promising the sky looks, and choose where to shoot. Check the light windows, a sky score with its reasons and confidence, and the sun's direction before you leave. A LIVING SKY • The sky on screen is rendered from the forecast: tonight's clouds, lit by the sun where it will be • The sun's whole day as one curve. Drag the time ruler and watch the light change • A countdown to the next sunrise or sunset, with golden and blue hour marked on the curve WILL THE SKY LIGHT UP? • A sky score for every golden hour, from high, mid and low cloud, rain and haze; at sunset it also checks low cloud toward the sun, and the forecast shows how confident each score is • Plain reasons, like "high cloud to catch the colour" or "low cloud may block the sun" • The next 24 hours of cloud and the next 10 days at a glance EVERY PLACE, ONE SWIPE APART • Your location first, then the spots you save. Swipe between them • Swipe up for the whole day: blue and golden hour, sunrise, sunset, moonrise and moonset with directions, twilight, day length, moon phase and the next full moon • Search cities, landmarks or coordinates, and see each place's local time PLAN THE SHOT • Sun & moon map: bearing lines from any vantage point and the day's sun path • Sky path chart, and a camera view that draws the path over the real sky • Add any window to your calendar SKY EVENTS FOR EACH PLACE • Solar and lunar eclipses to 2040, with coverage and contact times where you are, and directions to the path of totality • Meteor showers with the rate you can expect on the peak night • Live aurora outlook from NOAA space weather ALWAYS AT HAND • Alerts before sunrise, sunset, golden or blue hour, optionally only when the sky looks good • Live Activity countdown on the Lock Screen and in the Dynamic Island • Home Screen and Lock Screen widgets The name: arrebol is Spanish for the red glow of clouds lit by the rising or setting sun. Accurate: sun and moon times are checked against the US Naval Observatory, and eclipses against NASA. Weather data from Apple Weather. Space weather from NOAA SWPC. Eclipse predictions by Fred Espenak, NASA GSFC.
Screenshots
Verdict
The clearest difference is update cadence: Arrebol at daily against Intervals's every 116 months. Intervals's advantage is iOS requirement (13.0 vs 26.0). On price, rating, ratings volume 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Intervals against 5.0 for Arrebol. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
Intervals ships an update every 116 months, Arrebol daily. Both last shipped on October 6, 2026.
| Parameter | Intervals | Arrebol |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 116 months | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 20 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Florithm LLC | Jiawen Sun |
Customer experience
Intervals
Arrebol
In-app purchases
Intervals
No in-app purchases
Arrebol
No in-app purchases









