Sandglass3 vs Chess Clock Classy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sandglass3
This app simulates a realistic hourglass with customizable timer durations. Users can flip the hourglass by swiping or rotating their device. It offers optional sound alerts and automatic rotation upon completion.
- Realistic hourglass simulation
- 1, 3, and 6-minute timers
- Swipe to flip hourglass
- Rotate device to flip
- Chime alert on completion
- Automatic rotation option
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It's a very simple, yet realistic hourglass. - Choose from a 1-minute, 3-minute, or 6-minute timer (check the remaining time at the bottom of the screen to determine the correct time). - Swipe the screen horizontally or turn your iPhone sideways and then back to portrait to flip the hourglass over. - You can display the remaining time and play a chime when the timer finishes. - You can set it to rotate automatically once all the sand has fallen. Staring at it is soothing...maybe.
Chess Clock Classy
This app provides a digital and classic chess clock with various customizable timing modes. It supports popular chess formats like Bullet, Blitz, and Rapid, as well as Fischer time increments and Armageddon games.
- Classic and digital clock options
- Multiple timing modes
- Bullet, Blitz, Rapid support
- Fischer time increment
- Customized timing modes
- Armageddon game mode
- Dice mode with random time
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You can choose between a classic and a digital chess clock in different colors. Many different timing modes are supported: - Bullet chess - Blitz chess - Rapid chess - Long chess - Fischer time increment - Customized timing modes - Armageddon game - Dice mode with random time (in minutes)
Screenshots
Verdict
The clearest difference is review sentiment: Chess Clock Classy at 100% against Sandglass3's 44%. Chess Clock Classy also leads on rating (4.7 vs 2.7) and ads (none vs shown). Sandglass3's advantage is iOS requirement (9.0 vs 12.2). On price, update cadence, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Chess Clock Classy holds the better App Store score, 4.7 against 2.7. That said, the two scores are not equally well evidenced: Chess Clock Classy has 59 ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 44% of Sandglass3's written reviews are positive against 100% of Chess Clock Classy's.
Sandglass3 ships an update every 8 months, Chess Clock Classy every 6 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.
| Parameter | Sandglass3 | Chess Clock Classy |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (11 ratings) | 4.7 (59 ratings) — better |
| Positive reviews | 43.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 11 | 59 — better |
| Update frequency | Every 8 months | Every 6 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 9.0 — better | 12.2 |
| Further details — not scored | ||
| Size | 43 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Keietsu Yasuhara | David Bauer |
Customer experience
Sandglass3
Chess Clock Classy
In-app purchases
Sandglass3
No in-app purchases
Chess Clock Classy
No in-app purchases
Questions
Is Sandglass3 free?
Is Chess Clock Classy free?
Which has better reviews, Sandglass3 or Chess Clock Classy?
Do Sandglass3 or Chess Clock Classy have ads?
Which is updated more often, Sandglass3 or Chess Clock Classy?
Other comparisons
