congstar vs Notan
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
congstar
Easily manage your mobile plan and track usage with this app. View data, SMS, and minutes, recharge prepaid credit, and manage your SIM or eSIM. Control your tariff and options, update personal details, and access bills.
- Track data, SMS, and minutes usage
- Manage tariff and options
- Recharge prepaid credit
- View bills
- Manage SIM and eSIM
- Update personal data
Read full descriptionHide full description
Mit der kostenlosen congstar App hast du schnell und einfach volle Kontrolle über deine Verbräuche und deine Daten jederzeit im Blick. Die congstar App bietet dir folgende Funktionen: Für Prepaid & Vertrag - Verbrauch im Blick - Daten, SMS und Minuten einsehen (inkl. Widget für Datenverbrauch) - Tarif & Optionen verwalten - Tarif wechseln, Optionen buchen oder kündigen - Guthaben & Rechnungen - Prepaid-Guthaben aufladen oder Rechnungen als PDF einsehen - SIM & eSIM verwalten - SIM-Karte sperren/tauschen, eSIM aktivieren, PIN & PUK anzeigen - Persönliche Daten ändern - Adresse, Zahlungsdaten oder Legitimations-PIN anpassen Wir entwickeln unsere congstar App kontinuierlich weiter und freuen uns über deine Bewertungen und konstruktiven Hinweise. Die Erklärung zur Barrierefreiheit unserer App findest du unter: https://www.congstar.de/barrierefreiheit Viel Spaß mit unserer App wünscht dir Dein App Team
Notan
This app serves as an intelligent academic companion for students, parents, and learners. It offers effortless grade tracking, insightful visual analytics, and smart reminders to help users stay on top of their academic progress and goals. An AI coach provides personalized feedback and study recommendations.
- Effortless grade tracking
- Insightful visual analytics
- Smart reminders and alerts
- Customizable grading scales
- AI coach for feedback and recommendations
- Seamless iCloud sync
Read full descriptionHide full description
The universal grade calculator. Notan helps students keep track of every grade and instantly see where they stand. Add your subjects, enter your grades, and watch your averages update in real time. Built for your school system Notan isn't a one-size-fits-all calculator. Pick your country and get a grade system that actually matches your school: Germany (including full Abitur support), Austria, Switzerland, Spain, France, Italy, Vietnam, and International (build your own custom grading scale). Powerful, yet simple • Weighted grades & grade groups: give exams, tests and homework the weight they deserve • Terms & semesters: track each part of the year separately • Live averages & summaries: see your current standing at a glance • Custom rounding: rounded, 1 or 2 decimal places, plus floating-point grades • Handy tools: quick average calculator and a 15↔6 points converter Your data, your way • Multiple spaces: manage grades for several people or classes on one device • Sync across devices: connect your phone and tablet with a simple QR code • Transfer & backup: move your data to a new device and restore from automatic backups anytime • PDF export: share or print a clean overview of your grades Private by design Notan is local-first: your grades live on your device. Cloud sync is completely optional and only happens when you choose to turn it on. Free to use, dark mode, and available in English, German, Spanish, French, Italian and Vietnamese. Download Notan and take control of your grades today.
Screenshots
Verdict
The clearest difference is in-app purchases: congstar at none against Notan's 1. congstar also leads on ratings volume (275 vs 55). Notan's advantage is review sentiment (93% vs 73%) and device support (3 vs 1). On price, rating, update cadence and ads 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. Notan sells 1 one-off in-app purchase. congstar asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.5 for congstar against 4.6 for Notan. That said, the two scores are not equally well evidenced: congstar has 275 ratings behind it against 55, so its average is the more settled of the two. Written reviews are what separate them: 73% of congstar's written reviews are positive against 93% of Notan's.
congstar ships an update fortnightly, Notan every 2 weeks. The most recent releases landed on September 21, 2026 and September 23, 2026 respectively.
| Parameter | congstar | Notan |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (275 ratings) | 4.6 (55 ratings) — better |
| Positive reviews | 72.6% of reviews | 92.6% of reviews — better |
| Number of ratings | 275 — better | 55 |
| Update frequency | Fortnightly | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 201 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | congstar GmbH | Tien Do Nam |
Customer experience
congstar
Notan
In-app purchases
congstar
No in-app purchases
Notan
- No Ads$4.99
