# Instant BTC/JPY Calc! vs TxFlow

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.

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.

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.

## The numbers

| Metric | Instant BTC/JPY Calc! | TxFlow |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 8 MB | 107 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shun Isayama](https://appshunter.io/developer/1578976556) | [TxFlow Labs Ltd](https://appshunter.io/developer/1880624171) |

## What reviewers say

### Instant BTC/JPY Calc!

[App page](https://appshunter.io/ios/app/instant-btcjpy-calc/id6740067180)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### TxFlow

[App page](https://appshunter.io/ios/app/txflow/id6759785006)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*