congstar review

Updated September 28, 2026 · NomadCue Editorial Team · Facts checked September 26, 2026

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Our verdict

congstar suits you if you want a German network you can trust at home rather than a travel eSIM. It is an MVNO from Telekom Deutschland GmbH with 5G, instant activation and top-ups, at prices of €15.

Key facts

Best for
A home mobile plan in Germany on the Telekom D-Netz.
Price from
€15↗
Unlimited data
No↗
5G
Yes↗
Fair use policy
Data allowance starts at 10 GB in year 1 and grows 1 GB per year; speed limited to 50 Mbit/s, 100 Mbit/s with the 5G Speed Option (3 EUR/month)↗
Networks
Telekom D-Netz↗
Top-ups
Yes↗
Seller type
Mvno↗
10 GB in Europe
€15↗
Legal entity
Telekom Deutschland GmbH↗
Headquarters
Germany↗
Support channels
Email, Chat, Phone, Help-centre, Community↗
Region
Local, Regional
Features
5G, Instant activation, Carrier plan
Official website
congstar.de

Facts checked September 26, 2026, 3 sources

Apps and profiles

Get the app
App Store

Pros and cons

Pros

  • Runs on Telekom D Netz, the Telekom D-Netz in Germany
  • Prices of €15 for the plan listed, and €15 for the data package
  • 5G, instant activation and a carrier plan, all listed under 5g, instant activation and carrier plan
  • Top-ups are available, so you can add credit when you need it

Cons

  • Unlimited data is not offered, so heavy data use needs a bigger allowance
  • Speed is capped under the fair use policy, with higher limits only on the 5G Speed Option for a monthly fee
congstar

Ready to try congstar?

Scored 8.8 / 10 by NomadCue.

Who it suits

  • People in Germany who want a local plan rather than a travel eSIM
  • Readers who value a long-standing carrier network over a wide country list
  • Anyone comfortable with a fair use policy that grows the allowance year by year

Who should look elsewhere

  • Travellers heading abroad, since the plan covers a single market
  • Data hungry users, because unlimited data is not available
  • Short trips on a budget, since €15 is a monthly home plan price

How congstar compares

Where congstar is available

Available
Germany

Countries from the brand (Source, checked September 26, 2026)

Frequently asked questions

How much does congstar cost?+

The plan listed starts at prices of €15 per month, and the data package is €15. That is a home mobile price rather than a per-trip charge, so the cost side is easier to weigh against a monthly budget than against a holiday total.

Which network does congstar run on?+

congstar runs on Telekom D Netz, and it is an MVNO of Telekom Deutschland GmbH in Germany. The plan is a local and regional one, local and regional, so it is built for use inside Germany rather than for a multi-country trip.

Does congstar offer unlimited data?+

Unlimited data is not offered. The fair use policy starts the data allowance at a set level in the first year and adds a small amount each year, with speed limited under that policy, and higher speeds only on the 5G Speed Option for a monthly fee.

Is 5G included?+

Yes, 5G is included. Alongside it, the feature list records instant activation and a carrier plan, 5g, instant activation and carrier plan, which suits people who would rather activate a plan on a carrier network than manage a travel eSIM.

Can I top up the account?+

Yes, top-ups are available. That makes it easier to handle a month with heavier data use than usual without changing the whole plan, and it pairs well with the data package priced at €15.

How do I get help?+

Support runs through email, chat and phone, so you can pick email, chat, phone, a help centre or the community depending on the question. A phone line is the quickest route for anything urgent, and the help centre covers the routine cases.

Who is congstar for?+

It suits people living in Germany who want a local plan on the Telekom D-Netz with 5G and top-ups. It does not suit travellers abroad, since the coverage is a single market, and the price of €15 is a monthly home plan figure.

Sources

Compiled from 3 source pages, checked September 26, 2026. We did not open an account.

Not confirmed yet: Price per GB from, Countries covered, Hotspot sharing.

congstar

congstar

A home mobile plan in Germany on the Telekom D-Netz.

8.8/10See alternatives