Updated September 30, 2026 · TariffCue Editorial Team
Astound vs congstar
What sets them apart
| Compare | ||
|---|---|---|
| Seller type | Reseller | Mvno |
| Price from | $19.95 | €2 |
| Reference plan prices | 150 Mbps: $19.95/mo, 150 Mbps, no contract; 1 Gig WiFi: $40/mo, 1000 Mbps, no contract; 1.5 Gig WiFi: $60/mo, 1500 Mbps, no contract | Allnet Flat S: 20 EUR/month, 50 GB, monthly cancellable | No unlimited plan - max Allnet Flat L 200 GB | Prepaid wie ich will: 2 EUR/4 weeks, 1-15 GB, prepaid |
| EU roaming | Paid | Included |
| Mid-contract price rises | Price for Life rate locked while service kept; other promos valid 12 mos then regular rates | No price rise - price stays as agreed |
| Host network | Not confirmed | Telekom |
| Unlimited plan price | $30 | Not confirmed |
| Data rollover | No | Not confirmed |
| Hotspot sharing | Yes | Not confirmed |
| Credit check required | Yes | Not confirmed |
| Markets | US | Not confirmed |
Same on both: SIM-only (Yes), 5G (Yes), eSIM (Yes), Wi-Fi calling (Yes), Multi-line discount (Yes).
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Key differences
- Astound scores higher overall: 9.5 vs 9.4.
- Support channels: only congstar offers Community.
- Billing: only congstar offers Contract, Prepaid.
Our verdict on each
Astound
Astound suits US households that want matching download and upload speeds, a low entry price and no contract to be tied into, and the same account can carry mobile lines. Entry pricing starts at $19.95 a month, Gig tiers arrive with Whole Home WiFi included, and the setup fee is $0.
congstar
congstar suits anyone in DE who wants a low entry price, short terms and no renewal jump, on the Telekom network. Entry starts at €2, and the price rise rule keeps that figure as agreed, though the top data tier stops short of unlimited.
Score breakdown
| Area | Astound | congstar |
|---|---|---|
| Cost | 9.6Entry price of $19.95 a month and a setup fee of $0 put cost near the top of the range. | 9.7HigherEntry price starts at €2, and No price rise - price stays as agreed means the agreed figure holds. Site median entry sits at €9.30. |
| Offer | 9.3HigherNo cancellation penalty; change or cancel anytime, and Whole Home WiFi arrives included with Gig plans. | 9.1Billing runs contract, rolling and prepaid, and terms run 1 month, with roaming at included and support across chat, phone and help centre. |
Where they rank in our lists
| Ranking | Astound | congstar |
|---|---|---|
| SIM-only deals | 1 of 416 | 59 of 416 |
| Phone plans with eSIM | 15 of 389 | 74 of 389 |
Sources behind this comparison
Astound
- astound.com: 20 facts, checked September 30, 2026
congstar
- congstar.de: 16 facts, checked September 30, 2026
Every fact side by side
| Fact | Astound | congstar |
|---|---|---|
| Billing | Rolling | Contract, Rolling, PrepaidCovers more |
| Contract length | 1 | 1 |
| Legal entity | Radiate HoldCo, LLC d/b/a Astound Broadband | Telekom Deutschland GmbH |
| Headquarters | United States | Germany |
| Support channels | Phone, Chat, Help centre | Chat, Phone, Help centre, CommunityCovers more |
Where each stands against the rest
| Fact | Astound | congstar | Median |
|---|---|---|---|
| Unlimited plan price | $30above the median | Not confirmed | $25 |
Median across 32 listed providers.
Pros and cons
Astound
Pros
- Download of 5,000 Mbps matches upload of 5,000 Mbps, so sending a large file is as quick as downloading one.
- The setup fee is $0, and it ranks 1 of 86 on that measure, ahead of every other brand compared.
- Service runs on cable and fttp, so one provider can cover a cable street or a fibre to the home street.
Cons
- EU roaming is paid, so European travel is billed separately.
- Data rollover is no, so unused mobile allowance does not carry into the next cycle.
- A credit check is required on the mobile side, which adds a step before a line is active.
congstar
Pros
- Entry pricing starts at €2, well under the €9.30 site median, with prepaid billing available through contract, rolling and prepaid.
- No price rise - price stays as agreed, so what you sign up for is what you keep paying at renewal.
- Terms run 1 month, short enough to leave without a long tie-in.
Cons
- The largest reference plan, Allnet Flat L, is a capped data allowance, so constant streaming or heavy hotspot sharing meets a ceiling.
- The entry figure of €2 belongs to a prepaid bundle, so the monthly contract option Allnet Flat S sits well above the €9.30 site median.
- Support reaches chat, phone and help centre, where email is not among the listed channels.
Who each suits
Astound
Who it suits
- Households in US whose street already has cable or fibre to the home and who want equal download and upload speeds.
- Families adding mobile lines to the same account, where a multi line discount and rolling billing apply.
- Renters and short-stay households, since No cancellation penalty; change or cancel anytime.
Who should look elsewhere
- Buyers who want a fibre to the home provider and nothing else, because cable and fttp includes cable while Abissnet and Kinetic list fibre to the home alone.
- Homes a wired network does not reach, where EarthLink adds fttp, 5G and satellite options.
- Travellers who expect European roaming to come included, since EU roaming is paid.
congstar
Who it suits
- Households wanting one bill option across contract, rolling and prepaid types, from prepaid to contract.
- Travellers in the EU who want roaming at included rather than paying per use.
- People on the Telekom network who would rather buy through an mvno than go direct.
Who should look elsewhere
- Anyone who needs truly unlimited data, since the congstar reference plans stop at Allnet Flat L; GETESA, listed as a network, is worth reading if you prefer a direct network tariff.
- Those wanting a single monthly contract price, since the cheapest figure belongs to a prepaid bundle while Allnet Flat S costs more each month.
Country by country
| Country | Astound | congstar |
|---|---|---|
| United States | Yes | No |
Questions about each
Astound
How much does Astound broadband cost a month?+
Plans start at $19.95 a month on the entry tier. The listed lineup then steps up through Gig and multi-Gig WiFi plans, and every plan shown is on no-contract terms, so the monthly figure is the whole commitment. Whole Home WiFi is included with Gig plans rather than sold as an extra.
Is there a setup or installation fee with Astound broadband?+
Setup costs $0 to add, and in this comparison the brand ranks 1 of 86 for setup fee, ahead of every other brand measured on that point. Equipment also counts: Whole Home WiFi is supplied with Gig plans, with the top tier hardware paired to the quickest speeds.
congstar
How much does congstar cost to get started?+
Entry starts at €2, which sits below the €9.30 site median for this kind of plan. That figure belongs to the prepaid option, Prepaid wie ich will, on a short prepaid billing cycle. The contract option, Allnet Flat S, costs more each month, so the cheapest headline price and the monthly contract are separate products.
Will my monthly price go up when I renew?+
The stated rule is No price rise - price stays as agreed. Nothing in that rule allows the agreed figure to climb, which is the main thing to check before signing a contract option. Contrast that with typical market behaviour, where the €43 site median for a post-contract price sits well above the €9.30 entry median.
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