Comparison

Instant BTC/JPY Calc! vs TxFlow

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Instant BTC/JPY Calc!

Features
Read full description

Get the latest Bitcoin rates automatically and instantly convert between Japanese Yen and Bitcoin! Perfect for cryptocurrency portfolio management, Bitcoin payment verification, BTC-denominated trade confirmation, and any situation requiring fast and accurate currency conversion. <Features> ● Simple and intuitive interface ● Automatically fetches real-time Bitcoin rates ● Bidirectional conversion: Yen to Bitcoin and Bitcoin to Yen ● Always displays the latest Bitcoin rate and update time ● Easy-to-use numeric keypad ● Large display for instant result viewing ● Conversion history saving function <How to Use> 1. Convert Yen to Bitcoin * Enter amount in "Japanese Yen" * Tap "Convert to Bitcoin" button * Bitcoin equivalent appears in the result field 2. Convert Bitcoin to Yen * Enter amount in "Bitcoin" * Tap "Convert to Yen" button * Yen equivalent appears in the result field 3. Update Bitcoin Rate * Tap the refresh button in the top right corner to get the latest Bitcoin rate * Rates are automatically fetched on app launch - use the refresh button as needed 4. View Conversion History * Tap the "History" tab to review past conversions Use it for cryptocurrency portfolio management, Bitcoin payment verification, BTC-denominated trades, and more! Real-time Bitcoin rates ensure you always get the latest conversion results. Simple operation and easy-to-use design for everyone. From trade planning to actual transactions, use it in all scenarios. This is a paid app with no ads.

About

TxFlow

Features
Read full description

TxFlow β€” the DeFi experience you've been waiting for. Access perpetual markets from your self-custodial wallet. No middlemen. Just you and the protocol. Manage positions with precision tools, earn rewards for your activity, and stay in full control of your assets β€” always. You're early. Your journey starts here.

Screenshots

Instant BTC/JPY Calc!3 screens
TxFlow4 screens

Verdict

The call

The clearest difference is price: TxFlow at Free against Instant BTC/JPY Calc!'s $5.99. TxFlow also leads on update cadence (every 2 weeks vs every 2 months) and iOS requirement (15.1 vs 17.6). On ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

TxFlow is free to download; Instant BTC/JPY Calc! costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Instant BTC/JPY Calc! ships an update every 2 months, TxFlow every 2 weeks. The most recent releases landed on October 10, 2026 and October 5, 2026 respectively.

Scorecard3 real differences Β· 3 level
Instant BTC/JPY Calc! versus TxFlow: the parameters behind the verdict, then further details
ParameterInstant BTC/JPY Calc!TxFlow
Price$5.99Free β€” better
Update frequencyEvery 2 monthsEvery 2 weeks β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.615.1 β€” better
Further details β€” not scored
Size8 MB107 MB
Age rating4+4+
DeveloperShun IsayamaTxFlow Labs Ltd

In-app purchases

None

Instant BTC/JPY Calc!

No in-app purchases

None

TxFlow

No in-app purchases

Questions

Is Instant BTC/JPY Calc! free?
Instant BTC/JPY Calc! costs $5.99, with no in-app purchases.
Is TxFlow free?
TxFlow is free to download, with no in-app purchases.
Do Instant BTC/JPY Calc! or TxFlow have ads?
Neither Instant BTC/JPY Calc! nor TxFlow shows ads.
Which is updated more often, Instant BTC/JPY Calc! or TxFlow?
Instant BTC/JPY Calc! ships an update every 2 months, and TxFlow every 2 weeks. Most recently, Instant BTC/JPY Calc! was updated on October 10, 2026 and TxFlow on October 5, 2026.

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