GapClock vs Nature Flip Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GapClock
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Minimal Interval Clock - No Screen-Staring, Focus on Tasks Effortlessly! - 【Minimal & Focused】: Ditch the fancy extras , keep only the core timing features you need—perfect as your go-to interval timer, HIIT timer, and Tabata timer! - 【Customizable Tasks】: Want to set "5 mins running + 3 mins walking" repeated 3 times? Or "20 mins vocabulary + 5 mins break"? Tailor tasks to your needs easily! - 【Loop Timing】: Just 2 steps to customize your to-dos + durations, set the loop count, and start timing right after opening—ideal for consistent HIIT, Tabata, or daily interval routines! - 【Reminders Even When Locked】: No fear of screen lock or background apps! It’ll sound an alert automatically when time’s up, switching to the next phase seamlessly—no need to glance at the screen at all! - 【Celebrate Small Wins】: Celebrate every little interval success of yours! Keep motivation high with each completed cycle, whether it’s a Tabata round or a study session! - 【Complete Tasks, Become Better】: Whether you’re a beginner doing interval runs, a student memorizing key points, or splitting work tasks, multi-device support helps you stay focused on every rhythm. Nail your plans easily with your reliable interval timer!
Nature Flip Clock
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A flip clock where butterflies, birds, leaves and flowers gather into every digit. Each digit sits on its own card. When the minute changes, the card flips down and new specimens fly in, landing just as the flip ends. Put it on your nightstand or desk: the screen stays on while Horae is open. Prefer digits without cards? Turn off Flip clock in Settings. FIVE FACES • Butterflies — free; wings gather along the strokes of each digit • Birds — birds perch where the strokes run • Pebbles — river stones worn smooth, quiet and heavy • Fallen Leaves — autumn leaves settle into the hour • Flower Clock — Linnaeus's flower clock of 1751: twelve flowers that open at their own hours, and a firefly that keeps the seconds MADE FOR THE NIGHTSTAND • Flip clock — on by default, with a live preview in Settings • OLED screen protection — the digits drift slowly to prevent burn-in • Swipe up or down on the clock to adjust brightness • A dark face that is easy on the eyes at night QUIET BY DESIGN No ads, no accounts, no analytics. The clock works fully offline. Butterflies is free, with every feature, flip clock included. One purchase unlocks the other four faces and every face added later. Named for the Horae, the Greek goddesses of the hours.
Screenshots
Verdict
The clearest difference is in-app purchases: GapClock at none against Nature Flip Clock's 1. Nature Flip Clock's advantage is update cadence (fortnightly vs every 5 weeks). On price, ads, device support and iOS requirement 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. Nature Flip Clock sells 1 one-off in-app purchase. GapClock asks for nothing beyond the download.
GapClock ships an update every 5 weeks, Nature Flip Clock fortnightly. The most recent releases landed on October 13, 2026 and October 24, 2026 respectively.
| Parameter | GapClock | Nature Flip Clock |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 19 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | 铁 周 | 四青 薛 |
In-app purchases
GapClock
No in-app purchases
Nature Flip Clock
- The complete cabinet$4.99









