Comparison

SD Mini vs Big Clock

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Item tracking via Bluetooth
  • Left-behind alerts
  • Last known location mapping
  • Sound alerts for item location
  • Selfie capture functionality
Read full description

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

About

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.

Highlights
  • Fullscreen digital clock
  • Always-on display mode
  • Light and dark themes
  • Brightness control
  • Portrait and landscape support
  • Minimal design
Features
Read full description

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

SD Mini4 screens
Big Clock4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Big Clock sells 4 one-off in-app purchases. SD Mini asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

SD Mini ships an update every 3 months, Big Clock weekly. Both last shipped on October 14, 2026.

Scorecard6 real differences · 4 level
SD Mini versus Big Clock: the parameters behind the verdict, then further details
ParameterSD MiniBig Clock
PriceFreeFree
Rating4.0 (4 ratings)4.7 (6 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings46 — better
Update frequencyEvery 3 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS8.0 — better16.0
Further details — not scored
Size11 MB69 MB
Age rating4+4+
DeveloperMaxwell Forest Pty LtdNataliia Zarudna

Customer experience

SD Mini

All ratings4 ratings
Positive50.0%
Neutral50.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

Big Clock

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

SD Mini

No in-app purchases

4 purchases

Big Clock

One-time4
  • Premium$1.99
  • Premium + Coffee$3.99
  • Premium + Coffee + Croissant$7.99
Show 1 more
  • Premium + Big Support$12.99

Questions

Is SD Mini free?
SD Mini is free to download, with no in-app purchases.
Is Big Clock free?
Big Clock is free to download, with in-app purchases available.
Which has better reviews, SD Mini or Big Clock?
Big Clock is rated higher. SD Mini averages 4.0 out of 5 from 4 ratings, while Big Clock averages 4.7 from 6 ratings.
Do SD Mini or Big Clock have ads?
Neither SD Mini nor Big Clock shows ads.
Which is updated more often, SD Mini or Big Clock?
SD Mini ships an update every 3 months, and Big Clock weekly. Most recently, SD Mini was updated on October 14, 2026 and Big Clock on October 14, 2026.

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