Cube Exchange
Cube
Data verified on unchanged since the sources
Worth it if you trade spot and want aggressive fees (0.05% taker, zero maker) with no KYC and access from Italy.
Avoid it if you want proof of solidity: there is no proof of reserves, no named regulator, and the MPC architecture is untested at scale.
Cube positions itself as a hybrid exchange with user funds protected through MPC technology and a Polish VASP licence, backed by $30M in funding. As a new platform, its MPC architecture has yet to be tested at scale and liquidity is still being built. The platform frames funds as MPC-protected, but the data field classifies it as custodial, so the custody model should be verified directly.
Data & conditions
| Maker / Taker fee | 0% / 0.05% |
|---|---|
| Markets | Spot + Derivatives |
| Max leverage | 0× |
| Supported assets | 1420+ |
| Trading pairs | 65+ |
| Fiat on-ramp | Yes |
| Deposit methods | Bonifico bancario (acquisto USDC via partner Banxa), Carta di credito/debito (acquisto USDC via partner Banxa), Deposito crypto |
| Geo restrictions | US |
| Fund custody | Custodial (platform holds funds) |
| KYC | No KYC |
| Supported countries | US, EEA · 30+ countries |
| Regulator | Not disclosed |
| OAM Italy registration | No |
| Segment | B2C |
| MiCA / License status | VASP VASP Polonia |
Strengths
- Not-custodial hybrid: funds user MPC-protetti; VASP Polonia; $30M.
- No KYC: usable without identity verification.
Weaknesses
- New; MPC not tested larga scala; liquidità in building.
- Custodial: the platform holds your funds and can freeze or lose them.
- Subject to regulation (VASP Polonia): reporting to authorities and freezes on order.
- Geographic restrictions (US).
Verdict
The A rating rests mainly on aggressive pricing (0.05% taker, zero maker) and a formal wrapper, the Polish VASP licence, which is also reachable from Italy. Weighing against it are the lack of a named regulator, no proof of reserves, and an MPC architecture not yet stress-tested at scale: for a new venue with liquidity still being built, that is the caution that keeps the score short of the top.
Through this lens Cube convinces little because it stays classified as custodial: MPC promises fund protection but is not self-custody, and the VASP wrapper still implies a regulated perimeter. The redeeming point is the absence of KYC, rare for a licensed platform, which lifts the judgment somewhat above a traditional CEX but not enough to make it trustless.
Promp's editorial rating based on real fees and net annual cost. Promp reviews third-party products independently.
"Sovereignty" rating: score computed on privacy/anonymity (30%), fund control (20%), censorship resistance (20%), trustless/auditability (20%) and costs (10%). Same data, different weights.
Reputation
What happened to people who used Cube Exchange, and what users say. External signals: they do not feed the promp.it rating.
Incidents & regulatory actions
No known incidentSearch across public sources: no known hack, withdrawal freeze or regulatory action as of the verification date.
verified on
Public reviews
-
App Store ↗
5.0/5
14 reviews
'Cube Exchange: DeFi, CeFi, MPC' app (id 6736371827), US App Store storefront. Exact average and count from itunes lookup. Tiny sample (14 ratings).
-
Trustpilot ↗
4.0/5
7 reviews
sample too small for the average
Very low volume (7 reviews): weak signal, below the 10-review threshold. TrustScore re-verified by the orchestrator via browser.
Weighted average across 1 public review platform (14 reviews in total), weighted by volume. This is not our rating: it is those platforms’ average.
FAQ
What are Cube Exchange's fees?
On Cube Exchange, spot fees are maker 0% / taker 0.05%. They drop with monthly volume and VIP tier.
Is Cube Exchange regulated in Europe?
Regulatory status of Cube Exchange: VASP Polonia. Licence: VASP.
Does Cube Exchange publish Proof of Reserves?
Proof of Reserves publication is not documented for Cube Exchange. No third-party reserve audit is documented. Reserve transparency is a critical factor after the FTX collapse.
Can I send transfers to third-party IBANs from Cube Exchange?
No, Cube Exchange is an exchange and does not allow transfers to third-party IBANs: fiat withdrawals return to a bank account in your own name.
Does Cube Exchange support derivatives and futures?
Cube Exchange offers derivatives trading.
Sources
- Official service page Maker/taker fees · Regulatory framework · Derivatives · Legal name · +6 Data verified on Jun 15, 2026
- cryptopolitan.com Latest funding round Data verified on Jun 15, 2026
- cryptotimes.io Valuation Data verified on Jun 15, 2026
- organismo-am.it OAM Italy registry Data verified on Jun 15, 2026
Show 1 more source
- webopedia.com Founders · Past incidents · Third-party audit · Bug bounty · +9 Data verified on Jun 15, 2026