Rect Clock vs ChronoSync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rect Clock
This app transforms your iPhone into a full-screen analog clock. Customize the clock face, index, and hands with various styles and colors. Enjoy a minimalist design with adjustable screen rotation and optional date display and auto-lock.
- Full-screen analog display
- Customizable clock faces
- Interchangeable index styles
- Variety of hand designs
- Adjustable hand movement
- Screen rotation support
- Configurable date and lock
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An analog clock that fills the entire iPhone screen. Choose your favorite dial, indices, and hands to customize the clock to your style. A minimal design that perfectly complements the iPhone’s product design. ・ 12 dials: 6 included [Black / White / Silver / Wood / Leather / Luminous] + 6 available via in-app purchase [Space Black / Gold / Rose Gold / Skeleton / Stone / Power Saving] ・ 6 index styles × 6 colors: 2 included [Bar / Arabic Numerals (12-3-6-9)] + 4 available via in-app purchase [Roman Numerals / Roman Numerals (XII-III-VI-IX) / Arabic Numerals / Triangle] ・ 11 hand styles × 6 colors (12 colors for the second hand): 2 included [Bar / Dauphine] + 9 available via in-app purchase [Round / Pencil / Alpha / Lozenge / Baton / Leaf / Arrow / Spade / Breguet] ・ 3 hand movements [Sweep / Beat / Step] ・ Automatically rotates to portrait, landscape, or upside down to match your iPhone’s orientation ・ Date display [On / Off] ・ Auto-Lock [On / Off]
ChronoSync
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Set your mechanical watch to the second. Pull the crown. Watch the countdown. The phone taps in your hand at zero, so your eyes never have to leave the dial. No mental arithmetic, no settling for close enough. Then there are the other four faces. A GMT that tracks a second timezone, a dive bezel you can actually rotate, a chronograph that runs, a moonphase that knows what tonight looks like. Each one comes with a short guide to what the complication does and how to use it — the parts a watch manual assumes you already know. What's inside A countdown to the exact second, with a tap in your hand at zero Five faces: Day-Date, GMT, Moonphase, Dive, Chronograph Controls that behave like the real thing — pick a second timezone, turn the bezel, run the chronograph Plain-language guides to every complication, including how to set a date without hurting the movement A Home Screen widget in the same style, that opens straight to the face you tapped No account, no analytics, nothing to sign up for. Go set your watch. Then stop thinking about it.
Screenshots
Verdict
The clearest difference is in-app purchases: ChronoSync at none against Rect Clock's 5. ChronoSync also leads on ads (none vs shown). Rect Clock's advantage is update cadence (every 2 weeks vs every 3 months) and iOS requirement (15.6 vs 26.0). On price 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
Both are free to download. Rect Clock sells 5 one-off in-app purchases. ChronoSync asks for nothing beyond the download.
Rect Clock ships an update every 2 weeks, ChronoSync every 3 months. The most recent releases landed on October 14, 2026 and October 4, 2026 respectively.
| Parameter | Rect Clock | ChronoSync |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (168 ratings) — better | — |
| Positive reviews | 59.2% of reviews | — |
| Number of ratings | 168 — better | — |
| Update frequency | Every 2 weeks — better | Every 3 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 195 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | y-design | Dominic McPhee |
Bugs and requests
Rect Clock
Reported bugs
9 issues- Blank white screen on launch (iPhone XR, iPad Air 2)
- App doesn't stay on when phone locks
- App crashes or won't open after purchase
- Settings screen appears on any touch
- Unresponsive UI elements on iPad
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- Battery percentage display frozen
- Orientation doesn't adjust to device rotation
- Ads still appear after paid purchase
- App stopped working after updates
Requested features
13 requests- Alarm functionality
- Lock screen integration
- Live wallpaper capability
- Apple Watch compatibility
- Landscape/rotation support
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- Always-on display when plugged in
- Ticking sound effect
- Adjustable brightness/dimming for night
- Round clock face option
- GMT/timezone hand option
- Larger date/time display option
- Screen saver mode
- Additional color variations (red retro style)
ChronoSync
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Rect Clock
- Add All Faces$0.99
- Add All Indexes$0.99
- Add All Hands$0.99
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- Remove Ads$0.99
- Full Version$2.99
ChronoSync
No in-app purchases









