[Wallets](https://revain.org/wallets/) › CoinJar

# CoinJar: keys, security, fees and reviews

Custodial wallet

## Key facts

- **Wallet type**: Custodial wallet
- **Who holds the keys**: the provider
- **Developer**: CoinJar Pty Ltd
- **Platforms**: iOS
- **Official site**: [coinjar.com](https://www.coinjar.com/)

Checked on 2026-10-27 against the official site, docs and app-store pages.

## What is CoinJar

CoinJar is a custodial cryptocurrency exchange and wallet app founded in 2013 by Asher Tan and Ryan Zhou. Users can buy, sell, store, send and receive more than 60 cryptocurrencies, and spend crypto with the CoinJar Card prepaid Mastercard.

## Who holds the keys

| Parameter | Details |
|---|---|
| Custodian | Custodial: CoinJar holds customer crypto, mostly in cold storage or multi-sig/MPC wallets, using BitGo and Fireblocks. |
| Key control | More than 90% of customer assets are kept offline or in multi-sig wallets at all times, according to CoinJar. |
| Reserves | CoinJar states it keeps full reserves covering more than 100% of customer balances. |
| Account model | Account with identity verification. |

## Features and supported networks

| Parameter | Details |
|---|---|
| Supported networks | More than 60 cryptocurrencies. |
| Platforms | iOS and Android app, plus the website. |
| Buy / sell | Buy with Visa or Mastercard, or by bank transfer (PayID, Osko in Australia; Faster Payments in the UK); crypto-to-crypto conversion. |
| Card | CoinJar Card: a prepaid Mastercard for spending crypto, with Apple Pay and Google Pay. |
| Recurring buys | Dollar-cost averaging into single coins or themed baskets (Bundles) weekly, fortnightly or monthly. |

## Security and audits

- Customer crypto is secured with custody providers BitGo and Fireblocks; part of the balances is held by BitGo Trust Company, Inc., a South Dakota chartered trust company.
- BitGo Trust holds limited insurance that does not cover all balances or losses from unauthorised account access or user-authorised transfers.
- CoinJar runs a bug bounty programme with security researchers.
- Internal services are protected by multi-factor authentication, and engineers do not have access to production servers or application credentials.

## Fees

| Parameter | Details |
|---|---|
| Buy / sell | 1% for fiat-to-crypto, crypto-to-fiat and crypto-to-crypto conversions; 2% for card, Apple Pay and Google Pay purchases. |
| Exchange trading | CoinJar Exchange fiat pairs: 0.10% taker and up to 0.10% maker, falling with 30-day volume. |
| Wallet | Sending to other CoinJar members and receiving crypto are free; sending to external addresses has a dynamic network fee. |
| Card | CoinJar Card: no issuance fee; 1% on purchases (returned as Rewards points); 2.99%+ on foreign transactions. |

## History

| Date | Event |
|---|---|
| 2013 | Asher Tan co-founded CoinJar, which grew into a crypto wallet, exchange and card business. |

## Risks and caveats

- Custodial service: CoinJar and its custody providers hold the crypto, and CoinJar may suspend access, block transactions or close accounts in cases set out in its terms.
- UK customers have no access to the Financial Ombudsman Service or the Financial Services Compensation Scheme if CoinJar becomes insolvent.
- Insurance held by BitGo Trust is limited and does not cover all balances.

## About the developer

- **Founders**: Asher Tan (CEO) and Ryan Zhou (COO)
- **Founded**: 2013
- **Legal entity**: CoinJar Australia Pty Ltd (ACN 648 570 807) operates the exchange services.
- **Licence / registration**: Registered with AUSTRAC (Australia) and with the UK Financial Conduct Authority for anti-money-laundering purposes.

## Official links

- Website: [www.coinjar.com](https://www.coinjar.com/)
- Security: [www.coinjar.com/global/security](https://www.coinjar.com/global/security)
- Docs: [www.coinjar.com/global/fees](https://www.coinjar.com/global/fees)

## Questions and answers

**Is CoinJar self-custodial?**

No. CoinJar is a custodial exchange wallet; CoinJar holds customer crypto using the custody providers BitGo and Fireblocks.

**Which coins does CoinJar support?**

More than 60 cryptocurrencies, which can be bought, sold, sent and received.

**Does CoinJar charge fees?**

Yes. Instant conversions cost 1%, card purchases 2%, and sends to external addresses carry a dynamic network fee; transfers between CoinJar members are free.

**Is CoinJar regulated?**

CoinJar Australia Pty Ltd is registered with AUSTRAC, and CoinJar is registered with the UK Financial Conduct Authority for anti-money-laundering purposes.

**Who makes CoinJar?**

CoinJar was founded in 2013 by Asher Tan and Ryan Zhou.

## Sources

- [coinjar.com](https://www.coinjar.com/)
- [apps.apple.com](https://apps.apple.com/us/app/coinjar-buy-bitcoin-crypto/id958797429)
- [CoinJar — About Us](https://www.coinjar.com/global/about-us)
- [CoinJar — Security](https://www.coinjar.com/global/security)
- [CoinJar — Fees & Spread](https://www.coinjar.com/global/fees)
- [CoinJar — Terms of Service](https://www.coinjar.com/global/legal)

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Page updated: 2026-10-29

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Source: https://revain.org/wallets/coinjar-wallet/