# Bitcoin wallet simulator: a fake BTC screen for videos that reads right

Source: https://mylarpwallet.com/blog/bitcoin-wallet-simulator
Updated: 2026-11-07
Published: 2026-09-23
Topic: Crypto wallet mockups (https://mylarpwallet.com/blog/crypto-wallets)

> A Bitcoin wallet simulator that draws a believable BTC screen for videos: eight-decimal quantities, live price math and a 24h change. Not paper trading.

Searches for a Bitcoin wallet simulator return paper-trading apps, testnet wallets and screen mockups. Which one you need, then how a Bitcoin screen is composed: a quantity cut from eight decimals, a dollar value that moves every few seconds, and a day change with its own arithmetic.

**Short answer:** A Bitcoin wallet simulator draws a BTC wallet screen from a quantity you type: eight decimals, a dollar value on the live price and a 24h change that adds up. My Larp Wallet is one example. It is not paper trading, which places pretend orders, not a testnet, which moves worthless coins, and not a hardware wallet: it is a screen for videos, demos and lessons.

## Bitcoin wallet simulator, paper trading or testnet: which one you need

As of October 28, 2026, the results for a Bitcoin wallet simulator mix three kinds of tool that do not do the same job. Pick by what you need to come out of it.

| You want | The tool | What it involves |
|---|---|---|
| A Bitcoin wallet screen for a video, a skit, a deck or a demo | A wallet screen simulator, like this page | A BTC quantity you type, a live price, no keys, no chain |
| To practice buying and selling Bitcoin with pretend money | A paper-trading app | Virtual cash at market prices; the balance moves with your trades |
| To test a real Bitcoin wallet with valueless coins | A testnet wallet | The real software on a test network, for developers |

Only the first draws a wallet screen you control. For the other two, see [demo account, paper trading or wallet simulator](https://mylarpwallet.com/blog/crypto-wallet-simulator#demo-account).

## The paper-trading apps that rank for this search

These come up first, and they are good at what they do. None is a wallet mockup. Facts are from each product's own page.

| App | What it is | Listing facts |
|---|---|---|
| CustomCrypto: Crypto Simulator (App Store) | Learn crypto with virtual money at real market prices: 35+ coins, portfolio charts and profit and loss, no sign-up | No upfront price; Premium purchase; 4.5 from 26 ratings (read October 28) |
| CryptoPlay: trade simulator (App Store) | Practice buying, selling and converting with virtual money. The listing says no real trades are made and balances cannot be converted to real money | No upfront price; two level upgrades; 5.0 from 6 ratings (read October 28) |
| Crypto Trading Simulator (Google Play) | Paper trading from $1,000 of virtual money, real-time prices, a leaderboard. Says it is for education only | 50K+ downloads; 4.6 from 716 ratings (read October 12) |
| TradingView paper trading | A demo account to practice with no deposits and no real money | The page describes it as a simulator with no risk and no fees |

What a Bitcoin wallet simulator adds is the other side: the screen of a wallet, with a balance header, a BTC row and a day change, that you can shoot on a phone. It has no orders, no trades and no score. If you came to practice trading, one of the apps above fits better; if you came for a believable BTC wallet screen, read on. My Larp Wallet is one such app, made by us, and it is a paid web app that you add to your home screen, with no APK or IPA.

## Start from the unit price

At a unit price near $78,000 (an example order of magnitude, not a quote), real holdings are fractions of a coin. Bitcoin divides into eight decimals. The smallest unit, the satoshi, is 0.00000001 BTC: worth $0.00078 at that price, so a dollar is about 1,282 sats.

That shapes every realistic quantity. $500 of BTC is 0.00641026 BTC. A larger position might read 0.41736259 BTC, which is 41,736,259 sats. A quantity of 1.5 or 0.25 reads as typed, because a purchase is a dollar amount divided by a price with decimals, minus a fee. A list row can trim to five decimals (0.41736 BTC) and lose almost nothing: 0.00001 BTC is $0.78.

## The dollar value is a product, and it moves

The fiat figure next to the quantity is not a field. It is quantity × live price: 0.41736259 × $78,000 = $32,554.28. In our wallet simulator, BTC is one of five built-in tokens whose market price refreshes every 4 seconds, and the quantity is the only number you type.

To total a whole portfolio at live prices, [how much is my crypto worth](https://mylarpwallet.com/tools/crypto-portfolio-calculator) does the sum for 22 coins. So the row never sits still. If the price ticks to $78,012.40, the same holding reads $32,559.46, up $5.18. On a recording, that drift is what makes the screen read as an app (see [why live prices change how a mockup reads](https://mylarpwallet.com/blog/larp-wallet-tutorial#record)). On a still, the cents are whatever the market left.

## Three ways to type a believable BTC balance

At a price of 60,000 USD for this example (an illustration, not the current price), the dollar value of a typed quantity is quantity × price:

| Quantity you type | Value at 60,000 USD | What it reads as |
|---|---|---|
| 0.0421 BTC | 2,526.00 USD | A small, ordinary stack |
| 1.25 BTC | 75,000.00 USD | A round whole-coin holding |
| 0.00085 BTC | 51.00 USD | A few dollars of dust, 85,000 sats |

Type the quantity and let the live price do the rest: the value on screen then moves with the market, as in the section above.

## The 24h line has its own arithmetic

A day change is two numbers, a percentage and a dollar amount, and they constrain each other. The percentage applies to yesterday's value, not today's, so the dollar change is value - value / (1 + pct).

Worked through: the row is worth $32,554.28 and BTC is up 2.35% on the day. Yesterday's value was 32,554.28 / 1.0235 = $31,806.82, so the change is +$747.46. Taking 2.35% of today's value gives $765.03, which is $17.57 too high.

Add a cash line of $1,240.55 and the header total becomes $33,794.83. The header change stays +$747.46, because cash did not move, and the header percentage drops to 747.46 / 33,047.37 = +2.26%. A header repeating the 2.35% of the BTC row is wrong. The same checks on a longer list are in [how a mockup balance is composed](https://mylarpwallet.com/blog/portfolio-wallet-simulator#balance).

## Where it stops: what a real Bitcoin screen has that a mockup does not

A single-asset screen is simpler than a [multichain wallet mockup](https://mylarpwallet.com/blog/portfolio-wallet-simulator#several-chains), but a real Bitcoin wallet carries things no composition has:

- **An address.** A receive address, often starting with bc1, that anyone can look up.
- **Confirmations.** A received payment shows how many blocks have confirmed it, starting at zero while it waits.
- **Network fees.** Quoted in sats per virtual byte, set by demand when you send.
- **A verifiable history.** Every entry has a transaction ID that opens on a block explorer.

The simulator has none of these that an explorer can check. It connects to no chain, never asks for a private key or seed phrase, and cannot sign or send anything. It is also not a hardware wallet; for that device, see [the hardware wallet simulator](https://mylarpwallet.com/blog/hardware-wallet-simulator).

## What a "fake bitcoin wallet simulator" image does not prove

Anything about holdings. Real prices applied to a typed quantity return a typed total, and a clean 24h line only shows the arithmetic was done. With no real address, no transaction ID and no confirmations, the image offers nothing an explorer can check, which is exactly why a screenshot is not evidence. Our terms of use forbid presenting the screen as an account statement or proof of funds.

Handed a BTC screenshot? The [tells of a composed wallet screenshot](https://mylarpwallet.com/blog/spot-a-fake-crypto-wallet-screenshot) are a start; only an address on an explorer plus a signed message settles it. Used as what it is, a Bitcoin screen for a lesson, a deck or an explainer video, the composition only has to read right. The same work on a SOL-first screen, with SPL tokens, is in [the Solana wallet simulator](https://mylarpwallet.com/blog/solana-wallet-simulator).

## Questions

### How many decimals should a BTC quantity have?

Bitcoin divides into eight decimals, and the smallest unit, one satoshi, is 0.00000001 BTC. At a unit price near $78,000, $500 buys about 0.00641026 BTC, so a realistic quantity starts with zeros and ends on digits nobody chose. A list row can trim to five decimals, since 0.00001 BTC is still under a dollar.

### How is the 24h dollar change calculated?

From the value now and the percentage: change = value - value / (1 + pct). A row worth $32,554.28 that is up 2.35% on the day gained $747.46, not the $765.03 you get by taking 2.35% of today's value. The percentage applies to yesterday's value.

### Can a Bitcoin wallet simulator screen prove a balance?

No. The image has no real address, no transaction ID and no confirmations, so there is nothing a block explorer can check, and the quantity on it was typed. A Bitcoin balance is shown by an address on an explorer, tied to its holder by a signed message, and the terms of use forbid presenting the screen as proof of funds.

### Is there a fake Bitcoin wallet app?

Prank apps that fake a Bitcoin balance exist. Ours is a web app that you add to your home screen: there is no APK and no IPA to install, and the screen is a prop for videos and demos, never proof of a balance.