SD Mini vs Big Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SD Mini
This app helps you keep track of your belongings using a Bluetooth tracker. It alerts you if you leave an item behind and can help you locate it by showing its last known position on a map or by triggering a sound alert.
- Item tracking via Bluetooth
- Left-behind alerts
- Last known location mapping
- Sound alerts for item location
- Selfie capture functionality
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SD Mini Bluetooth Tracker makes looking after what's valuable to you, easy. Whether you’ve misplaced your keys at home, have a teenager who can never keep track of their bag or your child has misplaced their favorite toy, it’s your own personal backup before losing something turns into a real problem. SD Mini can attach to anything you can't afford to lose. The app alerts you if you’ve left your item behind, showing its last location location on a map, or you can trigger a sound alert to your SD Mini, guiding you to the location of your lost item. Made with the quality components combined with a compact design and a replaceable battery the SD Mini even helps you or your teenager find your lost item… or capture the perfect selfie! Bluetooth tech at it’s best. Finds your things, Fast. by Safedome
Big Clock
Transform your device into a large, clear digital clock. Ideal for bedside tables, desks, or workouts, it offers an always-on display with customizable themes and brightness for easy readability in any environment.
- Fullscreen digital clock
- Always-on display mode
- Light and dark themes
- Brightness control
- Portrait and landscape support
- Minimal design
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Big Clock turns your iPhone or iPad into a clean, easy-to-read digital clock that stays visible when you need it most. Use it as a bedside night clock, desk clock, workout clock, or minimal always-on clock during work and study. Designed for simplicity, readability, and focus. FEATURES • Big fullscreen digital clock • Always-on display mode • Optional seconds display • Light and dark themes • Brightness control • Fullscreen mode • Works in portrait and landscape • One tap controls • Minimal and distraction-free design • Supports iPhone and iPad PERFECT FOR • Bedside nightstand clock • Desk setup clock • Kitchen clock • Study sessions • Work focus • Workout sessions • Low-light environments • Time visible from a distance Big Clock launches instantly and keeps the time clearly visible from across the room.
Screenshots
Verdict
The clearest difference is review sentiment: Big Clock at 100% against SD Mini's 0%. Big Clock also leads on rating (4.7 vs 4.0) and update cadence (weekly vs every 3 months). SD Mini's advantage is in-app purchases (none vs 4) and iOS requirement (8.0 vs 16.0). On price, ratings volume, ads 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. Big Clock sells 4 one-off in-app purchases. SD Mini asks for nothing beyond the download.
Big Clock holds the better App Store score, 4.7 against 4.0. Both are backed by a comparable volume of ratings — 4 and 6 respectively. Written reviews point the same way: 0% of SD Mini's written reviews are positive against 100% of Big Clock's.
SD Mini ships an update every 3 months, Big Clock weekly. Both last shipped on October 14, 2026.
| Parameter | SD Mini | Big Clock |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (4 ratings) | 4.7 (6 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 4 | 6 — better |
| Update frequency | Every 3 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 8.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 11 MB | 69 MB |
| Age rating | 4+ | 4+ |
| Developer | Maxwell Forest Pty Ltd | Nataliia Zarudna |
Customer experience
SD Mini
Big Clock
In-app purchases
SD Mini
No in-app purchases
Big Clock
- Premium$1.99
- Premium + Coffee$3.99
- Premium + Coffee + Croissant$7.99
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- Premium + Big Support$12.99









