Blackboard vs 00
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
Read full descriptionHide full description
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
00
This app serves as a companion for your movement practice, offering tools like timers, breaks, and a metronome. It also provides advanced partner instructions to guide your sessions.
- Timers and breaks
- Advanced partner instructions
- Metronome
- Movement practice companion
Read full descriptionHide full description
a companion app for your Movement practice. features: - timers and breaks. - advanced partner instructions. - metronome.
Screenshots
Verdict
The clearest difference is review sentiment: 00 at 100% against Blackboard's 0%. 00 also leads on in-app purchases (none vs 1) and ads (none vs shown). On price 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. 00 asks for nothing beyond the download.
Blackboard ships an update every 4 months, 00 every 2 months. The most recent releases landed on October 26, 2026 and October 16, 2026 respectively.
| Parameter | Blackboard | 00 |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 — better | — |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Filippo Gozza | Adriaan de Jongh |
Customer experience
Blackboard
00
In-app purchases
Blackboard
- Full version$2.99
00
No in-app purchases
