D4L Collect vs PulseTabata
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
D4L Collect
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Advance health research β easily and directly from your smartphone. With the D4L Collect app, you can participate in digital studies anytime, anywhere. Why join digital research studies? - Take part in studies from anywhere with your smartphone or Wear OS smartwatch. - No need to visit hospitals or clinics. - Effortlessly collect health data in daily life. - Enable evidence-based research by combining Patient-Reported Outcomes (PROs) with real-world data from wearables. - Help researchers gain insights faster. Your data is secure. All information in the D4L Collect app is end-to-end encrypted and securely transmitted. About Data4Life Data4Life is a nonprofit digital health organization funded by the Hasso Plattner Foundation. We envision a world where health data is ready for research in the areas of public health and personalized medicine to improve prevention, diagnosis, and treatment. Questions or feedback? Contact us at we@data4life.help β weβre happy to assist!
PulseTabata
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PulseTabata is a focused interval timer for Tabata, HIIT, and custom workouts. Build your own training plans, start sessions quickly, and keep your workout flow simple on iPhone and Apple Watch. Features: - Tabata, EMOM, and custom interval workouts - Create and edit your own workout plans - Apple Watch companion for workout control and metrics - Workout history saved on device - Sound, voice, and haptic cues - Clean, fast workout screens built for repeat training PulseTabata is designed for people who want a lightweight workout timer without accounts, ads, or unnecessary complexity.
Screenshots
Verdict
The clearest difference is device support: PulseTabata at 3 against D4L Collect's 1. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on September 2, 2026 and September 11, 2026 respectively.
| Parameter | D4L Collect | PulseTabata |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad, Apple Watch β better |
| Requires iOS | 16.6 β better | 17.0 |
| Further details β not scored | ||
| Size | 47 MB | 11 MB |
| Age rating | 17+ | 4+ |
| Developer | D4L data4life gGmbH | Vitalii Hurkovskyi |
In-app purchases
D4L Collect
No in-app purchases
PulseTabata
No in-app purchases









