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ビットスタート ビットコインをもらって、仮想通貨を学習・運用

latest release: 1.4.31 ( 24th November 2021 ) last analysed  1st November 2021 Can't send or receive bitcoins 
4.2 ★★★★★
2nd November 2018

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Do your own research!

Try out searching for "lost bitcoins", "stole my money" or "scammers" together with the wallet's name, even if you think the wallet is generally trustworthy. For all the bigger wallets you will find accusations. Make sure you understand why they were made and if you are comfortable with the provider's reaction.

If you find something we should include, you can create an issue or edit this analysis yourself and create a merge request for your changes.

The Analysis 

(Analysis from Android review)

New Review 2021-10-28

From the site:

It is a service that you can get bitcoins according to the usage contents for free by shopping online, registering services, answering questionnaires, etc. via BitStart.

You can get Bitcoin through online shopping through BitStart and answering questionnaires. There is no need to open a virtual currency account.

Users can earn “bitcoins” by participating in site activities such as reading through educational material, online shopping or answering questionnaires. Through user participation, users can earn bitcoin (represented or real bitcoins). These are then stored on the service and can be withdrawn after a threshold.

Again, it is not possible to send bitcoin to the service. Bitstart still does not truly function as a wallet due to users being unable to deposit BTC in this app at all.

Old Review 2021-10-21

Note: This app known as bitstock on Google Play is known as BitStart elsewhere on its web properties. Paddle, the Japanese developer, Paddle Inc., seems to have failed to integrate the branding on their app.

Note: The app is also in Japanese with no translation. We will contact the developers via email as they don’t seem to have a twitter account.

App Description

Bitstart is a service where you can get bitcoins through your usual online shopping and questionnaire responses.

If you join everyday price prediction by one click, answer easy questionnaire, or just enjoy online shopping, you can get Bitcoin for free.

The Site

The website listed on the Google Play app page is for the company Paddle which then links to BitStart.

The App

We downloaded the app and had trouble registering due to a lack of translation.


We were not able to find their twitter account, but managed to find a point of contact via their email address:

Hi! My name is Daniel, and I have a little trouble using your app.

I wanted to know whether there is a Bitcoin wallet in the app, or are the Bitcoins provided to users “representative” or “not real Bitcoins”.

If possible, is the project open-source. If yes, may we know if you keep the repository open to the public?

Thank you!


やあ! 私の名前はダニエルです。あなたのアプリを使用するのに少し問題があります。


可能であれば、プロジェクトはオープンソースです。 はいの場合、リポジトリを一般に公開しておくかどうかを教えていただけますか?


We had great difficulty translating the app from Japanese. As the Google Play description states, it seems to be an educational platform that allows users to “practice buying and selling” bitcoin. Once the app is open, we tried the different options to see if there was a facility to store, send or receive bitcoins like in a Bitcoin wallet. Absent documentation and other descriptive features, and until further information is available, we believe this app does not have a bitcoin wallet.


Verdict Explained

The product can't send or receive BTC.

As part of our Methodology, we ask:

Can it send and receive bitcoins? If not, we tag it No send/receive 

If it is for holding BTC but you can’t actually send or receive them with this product then it doesn’t function like a wallet for BTC but you might still be using it to hold your bitcoins with the intention to convert back to fiat when you “cash out”.

All products in this category are custodial and thus funds are at the mercy of the provider.

The product cannot be independently verified. If the provider puts your funds at risk on purpose or by accident, you will probably not know about the issue before people start losing money. If the provider is more criminally inclined he might have collected all the backups of all the wallets, ready to be emptied at the press of a button. The product might have a formidable track record but out of distress or change in management turns out to be evil from some point on, with nobody outside ever knowing before it is too late.