jempi.app vs STAR Race Timer | 0
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
jempi.app
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Introducing Jempi, the ultimate app for students in Luxembourg! Whether you're in high school or pursuing further education, Jempi has everything you need to succeed. With Jempi, you can easily upload and access new tests, so you'll always be prepared for your exams. Plus, you can store all of your grades in one convenient location, so you can track your progress and stay on top of your academic goals. And the best part? Jempi syncs all your data across all your devices, so you can access your grades and tests anytime, anywhere. But Jempi isn't just a platform for storing grades and tests. It's also a community where you can connect with other students and share tips and resources. Need help with a difficult assignment? Want to join a study group? Jempi has got you covered. So if you're a student in Luxembourg, download Jempi today and start taking your academic success to the next level. With Jempi, you'll have everything you need to ace your exams and achieve your academic goals, all synced across your devices.
STAR Race Timer | 0
Measure your car's acceleration from 0 to 60 mph or over specific distances without expensive equipment. The app supports multiple measurement modes and allows for safe, stationary configuration with automatic start detection during rolling starts. All results are stored locally for later analysis with speed graphs and route mapping.
- Unlimited acceleration measurements
- Speed-based and distance-based modes
- Local data storage and analysis
- Route saving and map view
- Rolling start detection
- Real-time speed information
- Dark mode support
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MEASURE YOUR CAR'S ACCELERATION — WITHOUT EXPENSIVE GPS TRACKERS! With STAR, anyone can measure how quickly their car accelerates. Time how long your car takes to reach a certain speed, or how long it takes to cover a set distance such as the quarter mile — all using nothing but your phone. Configure your runs safely at a standstill, and with rolling starts the app automatically detects the moment you pull away and begins measuring for you. You can even run multiple measurements at the same time. Every result is stored locally on your iPhone so you can revisit it later — no data is ever transmitted to us. Each run comes with analysis tools like graphs, top and average speed, a map of the route you drove, and more. —— FEATURES AT A GLANCE —— • YOUR GARAGE: Add every car you drive — complete with a photo and details like make, model, year, drivetrain, power, and weight. STAR tracks each car's runs and records separately. • STATS & PERSONAL BESTS: See each car's best 0–60, top speed, quarter mile, averages, and run counts at a glance — and watch how every new run stacks up against your personal best. • UNLIMITED MEASUREMENTS: Want to time the quarter mile and 0–60 in the same run? No problem — configure as many measurements as you like at once, and STAR handles the rest. • DIFFERENT MEASUREMENT MODES: Speed-based or drag race (distance) — choose the modes that fit the run you want to make. • ROLLING STARTS: Set everything up safely while stationary and let the app do the work — your measurement begins automatically the instant you start driving. • IN-DEPTH ANALYSIS: Every run is saved locally and can be explored afterwards with a speed graph, top and average speed, route details, and more. • ROUTE MAP: The route you drove is saved with each run, so you can revisit it later on a map. • HISTORY, ORGANIZED: Browse all your runs in the archive and filter by car to find exactly what you're looking for. Delete any run you no longer need. • LIVE SPEED & GPS INFO: Keep your current and top speed in view throughout every run, and check your live GPS satellite count to confirm a strong signal before you launch. • DARK MODE: Driving at night? STAR follows your iPhone's appearance settings and includes a dark mode with true blacks — easy on your eyes and your battery. • PRIVATE BY DESIGN: All of your data stays on your iPhone. Nothing is sent to us. Have an idea for a new feature or a suggestion to make STAR even better? Write to us at hi@sunnyside.dev — we'd love to hear from you! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: jempi.app at none against STAR Race Timer | 0's 1. jempi.app also leads on iOS requirement (12.0 vs 16.4). On price 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. STAR Race Timer | 0 sells 1 one-off in-app purchase. jempi.app asks for nothing beyond the download.
| Parameter | jempi.app | STAR Race Timer | 0 |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (2 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | — | Every 2 months |
| Ads | — | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | — | iPhone — better |
| Requires iOS | 12.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 70 MB | 73 MB |
| Age rating | 4+ | 4+ |
| Developer | Laurent Brand | Maximilian Krause |
In-app purchases
jempi.app
No in-app purchases
STAR Race Timer | 0
- STAR Pro$44.99









