Stable Stopwatch Plus vs Blackboard
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stable Stopwatch Plus
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Designed for Equine Data users. Automatically Syncs Workout Times with Equine Data*! Stable Stopwatch Plus allows you to Simply and Easily manage Racehorse Workout Times! For a standalone stopwatch solution, try our original Stable Stopwatch! Key Features: - Use Volume buttons for Start, Stop, and Split Times - Save records to view later - Save and Edit Key Information with each record such as Horse Name, Official Workout Time, Track Surface, and Notes - Sort Records by Date or Horse Name Stable Stopwatch Plus requires an Equine Data account.
Blackboard
A straightforward stopwatch app featuring oversized digits for easy visibility. It offers single-button control for starting, stopping, and resetting. With optional Bluetooth integration and a photocell, it can function as a race display, expanding its utility.
- Oversized digits
- Single-button control (start, stop, reset)
- Bluetooth device integration
- Photocell compatibility
- External Bluetooth button support
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Blackboard-Stopwatch This app is a simple stopwatch with very large numbers. The app has only one button with 4 functions: start, stop, pause and reset. In conjunction with my Bluetooth device and a photocell it can be a good display panel for any type of race. In this way, the use has practically no limits. Advertising can be deactivated via the "In-app purchases" option. For the start/stop can be used an external Bluetooth-button. Further information at: http://filippo-software.de Supported languages: German, Italian, English
Screenshots
Verdict
The clearest difference is in-app purchases: Stable Stopwatch Plus at none against Blackboard's 1. Stable Stopwatch Plus also leads on ads (none vs shown) and iOS requirement (11.0 vs 16.0). On price, update cadence 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. Blackboard sells 1 one-off in-app purchase. Stable Stopwatch Plus asks for nothing beyond the download.
Stable Stopwatch Plus ships an update every 7 months, Blackboard every 4 months. The most recent releases landed on May 17, 2026 and September 12, 2026 respectively.
| Parameter | Stable Stopwatch Plus | Blackboard |
|---|---|---|
| Price | Free | Free |
| Rating | — | 2.0 (2 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 7 months | Every 4 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 3 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Equine Data Inc. | Filippo Gozza |
In-app purchases
Stable Stopwatch Plus
No in-app purchases
Blackboard
- Full version$2.99
Questions
Is Stable Stopwatch Plus free?
Is Blackboard free?
Do Stable Stopwatch Plus or Blackboard have ads?
Which is updated more often, Stable Stopwatch Plus or Blackboard?
Other comparisons
