Updated September 30, 2026 · TariffCue Editorial Team
congstar vs Yas Tanzania
Where congstar and Yas Tanzania differ
| Compare |  congstar | Yas Tanzania ReviewSee alternativesSee alternatives |
|---|---|---|
| Seller type | Mvno | Network |
| Price from | €2 | TZS 10,000 |
| Reference plan prices | 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 | Wakishua 490 MB: 1000 TZS per 7 days, 490 MB, no contract; Halichachi: 1000 TZS for 6 months, 250 MB, no contract; Data pack 4.8 GB: 10000 TZS per 30 days, 4.8 GB, no contract. No 12-month or unlimited plan listed. |
| EU roaming | Included | Paid |
| Host network | Telekom | Not confirmed |
| SIM-only | Yes | Not confirmed |
| eSIM | Yes | Not confirmed |
| Wi-Fi calling | Yes | Not confirmed |
| Mid-contract price rises | No price rise - price stays as agreed | Not confirmed |
| Multi-line discount | Yes | Not confirmed |
| Markets | Not confirmed | TZ |
Same on both: 5G (Yes).
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Key differences
- Yas Tanzania scores higher overall: 9.5 vs 9.4.
- Support channels: only congstar offers Community.
- Support channels: only Yas Tanzania offers Email.
- Billing: only congstar offers Contract, Rolling.
Our verdict on each
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.
Yas Tanzania
Yas Tanzania is the straightforward prepaid option for Tanzania, selling data bundles you buy as needed with no contract term and support on phone, email and chat. It suits households that want one network to pay before use rather than commit, and it scores 9.5 overall.
Score breakdown
| Area | congstar | Yas Tanzania |
|---|---|---|
| Cost | 9.7Entry price starts at €2, and No price rise - price stays as agreed means the agreed figure holds. Site median entry sits at €9.30. | Not confirmed |
| Offer | 9.1Billing runs contract, rolling and prepaid, and terms run 1 month, with roaming at included and support across chat, phone and help centre. | 9.4HigherEntry price from TZS 10,000, prepaid billing and no contract term on the listed data bundles, on a network that offers 5G. |
| Trust | Not confirmed | 9.8Operating since 1994 as Honora Tanzania in its home market, with support across phone, email and chat. |
Licences and countries
| Country | congstar | Yas Tanzania |
|---|---|---|
| Headquarters | Germany | Tanzania |
How they place
| Ranking | congstar | Yas Tanzania |
|---|---|---|
| Prepaid phone plans | 57 of 367 | 53 of 367 |
Where these facts come from
congstar
- congstar.de: 16 facts, checked September 30, 2026
Yas Tanzania
- yas.co.tz: 11 facts, checked September 30, 2026
Every fact side by side
| Fact | congstar | Yas Tanzania |
|---|---|---|
| Billing | Contract, Rolling, PrepaidCovers more | Prepaid |
| Contract length | 1 | Not confirmed |
| Legal entity | Telekom Deutschland GmbH | Honora Tanzania |
| Headquarters | Germany | Tanzania |
| Founded | Not confirmed | 1994 |
| Support channels | Chat, Phone, Help centre, Community | Phone, Email, Chat, Help centre |
Pros and cons
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.
Yas Tanzania
Pros
- Billing is prepaid, so there is no contract term to serve and no renewal step to price at.
- Support runs on phone, email and chat, covering phone, email, chat and a help centre.
- Yas sells as a network, network, so the bundles come from the operator that runs the service rather than from a reseller.
Cons
- Roaming is paid, so using the SIM outside Tanzania adds cost instead of arriving with the bundle you bought.
- Yas sells in Tanzania, so the plans are of no use to anyone living outside Tanzania.
- Billing is prepaid alone, so there is no rolling option like the one yesss! lists through contract, rolling and prepaid.
Who each suits
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.
Yas Tanzania
Who it suits
- Anyone in Tanzania who wants a single network to buy data from without a contract term.
- Households with irregular data use, since bundles are bought as needed rather than tied to a longer term.
- People who want a question answered by phone as well as by email, chat or the help centre, since support runs on phone, email and chat.
Who should look elsewhere
- Travellers heading outside Tanzania: roaming is paid here and Yas sells in Tanzania.
- Buyers who want a contract alongside prepaid: GETESA lists prepaid and contract, wider than the prepaid billing Yas offers.
- Anyone after rolling monthly billing: yesss! lists contract, rolling and prepaid, a shape Yas does not cover.
Country by country
| Country | congstar | Yas Tanzania |
|---|---|---|
| Tanzania | No | Yes |
Questions about each
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.
Yas Tanzania
How much do Yas data plans cost?+
Yas lists a small pack billed weekly, a mid-sized pack at the same price covering a stretch of months, and a large pack billed monthly. Entry pricing starts at TZS 10,000. None of the listed bundles carries a contract term, so what you pay is what the pack costs each time you top up.
Is there a contract or a renewal price to weigh?+
Billing is prepaid, so nothing keeps running past a purchase you have already paid for. There is no contract term on the listed bundles and no annual plan, which means there is no renewal price sitting behind a cheaper entry offer. You buy a pack, it covers its period, and the decision comes round again afterwards.