Comparison

congstar vs ja! mobil

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

congstar

Free

🔧 Utilities

★ 4.5275 ratingsView app →

ja! mobil

Free

🔧 Utilities

★ 3.624 ratingsView app →

About

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.

Highlights

Track data, SMS, and minutes usage
Manage tariff and options
Recharge prepaid credit
View bills
Manage SIM and eSIM
Update personal data

Read 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

About

ja! mobil

Easily manage your mobile plan, track usage, and control your data, SMS, and minutes. Recharge prepaid credit, manage SIM cards, and update personal information all within one app.

Highlights

Track usage (data, SMS, minutes)
Manage tariff and options
Recharge prepaid credit
Manage SIM & eSIM
View and change personal data
Lock/replace SIM card

Read full description

Mit der kostenlosen ja! mobil 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 - Tarif & Optionen verwalten - Tarif wechseln, Optionen buchen oder kündigen - Prepaid-Guthaben einsehen und aufladen - SIM & eSIM verwalten - SIM-Karte sperren/tauschen, eSIM aktivieren, PIN & PUK anzeigen - Persönliche Daten ändern - Adresse oder Legitimations-PIN anpassen Wir entwickeln unsere ja! mobil App kontinuierlich weiter und freuen uns über deine Bewertungen und konstruktiven Hinweise. Die Erklärung zur Barrierefreiheit unserer App findest du unter: https://www.jamobil.de/barrierefreiheit Viel Spaß mit unserer App wünscht dir Dein App Team

Screenshots

congstar4 screens

ja! mobil4 screens

Verdict

The call

The clearest difference is rating: congstar at 4.5 against ja! mobil's 3.6. congstar also leads on monetization model (free vs free with in-app purchases) and ratings volume (275 vs 24). On price, review sentiment, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

congstar holds the better App Store score, 4.5 against 3.6. That said, the two scores are not equally well evidenced: congstar has 275 ratings behind it against 24, so its average is the more settled of the two. Written reviews complicate that: 73% of congstar's written reviews are positive against 80% of ja! mobil's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 21, 2026 and September 23, 2026 respectively.

Scorecard3 real differences · 7 level

congstar versus ja! mobil: the parameters behind the verdict, then further details
Parameter	congstar	ja! mobil
Price	Free	Free
Rating	4.5 (275 ratings) — better	3.6 (24 ratings)
Positive reviews	72.6% of reviews	80.0% of reviews — better
Number of ratings	275 — better	24
Update frequency	Fortnightly	Fortnightly
Ads	No	No
In-app purchases	No	No
Monetization	Free — better	Free with in-app purchases
Devices	iPhone	iPhone
Requires iOS	17.6	17.6
Further details — not scored
Size	201 MB	197 MB
Age rating	4+	4+
Developer	congstar GmbH	congstar Services GmbH

Customer experience

congstar

All ratings275 ratings

Positive88.4%

Neutral2.5%

Negative9.1%

Written reviews73 reviews

Positive72.6%

Neutral6.8%

Negative20.5%

ja! mobil

All ratings24 ratings

Positive62.5%

Neutral4.2%

Negative33.3%

Written reviews55 reviews

Positive80.0%

Neutral12.7%

Negative7.3%

In-app purchases

None

congstar

No in-app purchases

None

ja! mobil

No in-app purchases

Questions

Is congstar free?

congstar is free to download, with no in-app purchases.

Is ja! mobil free?

ja! mobil is free to download, with no in-app purchases.

Which has better reviews, congstar or ja! mobil?

congstar is rated higher. congstar averages 4.5 out of 5 from 275 ratings, while ja! mobil averages 3.6 from 24 ratings.

Do congstar or ja! mobil have ads?

Neither congstar nor ja! mobil shows ads.

Which is updated more often, congstar or ja! mobil?

congstar ships an update fortnightly, and ja! mobil fortnightly. Most recently, congstar was updated on September 21, 2026 and ja! mobil on September 23, 2026.