Bed Time | Large Clock vs Smart Adding Machine
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bed Time | Large Clock
This app offers a large, customizable clock designed for bedside or desk use. It features adjustable brightness, color options, and display settings like date and seconds. Calming sounds are included to aid sleep, and the interface is simple with gesture controls.
- Large, readable time display
- Adjustable brightness and color
- Dark and light modes
- Optional date, seconds, and 12/24 hour format
- Calming sleep sounds (rain, waves, fire)
- Gesture-based controls
- Portrait and landscape orientation support
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A simple and elegant clock with a focus on displaying the time in the most pleasing and readable way possible. There's a dark mode, with the ability to lower the brightness so that the time is only just readable, ideal for use at night as a bedside clock. During the day, the light mode with full and vibrant colours can be used to keep track of the time while you work. As well as customising the clock with a selection of colours and brightness levels, you can choose to display or hide the date, seconds, use the 12 or 24 hour clock, and of course toggle between night and day mode. The layout of the clock intelligently adjusts to make the best use of the screen whether your device is in portrait or landscape. Bed Time also includes a set of calming sounds - such as rain, ocean waves, a burning fire, etc - to help you drift off to sleep. Bed Time is designed with simplicity in mind - just tap the screen and a small selection of controls will be displayed - or alternatively you can use simple gestures: • Swipe left and right to cycle through a selection of colours • Swipe up and down to adjust the brightness • Pinch and zoom to show or hide the date and the seconds • Long press to switch between 4 different styles • Dark mode with a coloured background • Dark mode with a black background • Light mode with coloured background • Light mode with a white background • Elegant in both portrait and landscape The Bed Time app is designed to be used in conjunction with a stand on your bedside table or desk.
Smart Adding Machine
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This app has a numeric keyboard. It may not always be visible. If it is not visible, pressing the input button that has the text 'Insert an Amount or ...', will cause one to appear. If you want to hide it, select the button on the left titled 'Hide KB'. The Adding Machine contains a visual tape with two columns of numbers. The left is the amount you keyed. The right column has in a '1' which is the count. The system puts in a '1' for you. As you add items, the tape grows. The last item is always followed by an empty item colored red. This color red is important because it indicates where your next entry will be placed!!! After entering a number, press the 'Save' button. If this is your first entry, two items will appear on the tape. The first one will contain the number you keyed. The second will be red with the amount showing: 0.00 and a count showing 1. This pattern will continue as you add items On the left side of the screen are 11 buttons in a column. The first six are for moving the red color - but not its contents. This allows for the correction of errors. The first two are: first - go to tape start & second to tape end (red item). The second two go up one item and down one item on the tape. The last of the group switch between amount & count - usually used to change the count from 1. There a 4 named buttons the effect the tape: Clear, Insert (an empty row where the red is, Delete(the row that a red item) and Hide KB. The keyboard has no minus sign. There is a slider button that can be used to cause an number to be negative. It is red for emphasis At least 50 items can be entered. The tape can be scrolled by using your finger to see the entire tape. At the very top of the screen is a 'Help' chevron that switches to a page of help text.
Screenshots
Verdict
The clearest difference is in-app purchases: Smart Adding Machine at none against Bed Time | Large Clock's 2. Smart Adding Machine also leads on update cadence (every 3 weeks vs every 4 months). Bed Time | Large Clock's advantage is price ($1.99 vs $3.99). On 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
Bed Time | Large Clock costs $1.99 and Smart Adding Machine $3.99 up front. Bed Time | Large Clock sells 2 one-off in-app purchases. Smart Adding Machine asks for nothing beyond the download.
Bed Time | Large Clock ships an update every 4 months, Smart Adding Machine every 3 weeks. The most recent releases landed on October 7, 2026 and September 25, 2026 respectively.
| Parameter | Bed Time | Large Clock | Smart Adding Machine |
|---|---|---|
| Price | $1.99 — better | $3.99 |
| Rating | 4.7 (369 ratings) — better | — |
| Positive reviews | 78.3% of reviews | — |
| Number of ratings | 369 — better | — |
| Update frequency | Every 4 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 22 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | John Mackay | Harry Detrick |
Bugs and requests
Bed Time | Large Clock
Reported bugs
4 issues- Brightness too high after update
- App shuts off during the night
- Clock lags slightly behind system clock
- Unable to use after payment (Scam)
Requested features
7 requests- Ability to set bedtimes
- Display date/day larger
- Better contrast options (white on black, yellow on black)
- Notification on screen for alarm activation
- Ability to lock phone with clock face displayed
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- Option to hide date display
- Adjust brightness/luminosity more effectively
Smart Adding Machine
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Bed Time | Large Clock
- Calming SoundsFree
- Tip for Morning Coffee$2.99
Smart Adding Machine
No in-app purchases
Questions
Is Bed Time | Large Clock free?
Is Smart Adding Machine free?
Do Bed Time | Large Clock or Smart Adding Machine have ads?
Which is updated more often, Bed Time | Large Clock or Smart Adding Machine?
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