# Flm∴S アイソメmaster vs JWW見れる君

The clearest difference is in-app purchases: Flm∴S アイソメmaster at none against JWW見れる君's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. JWW見れる君 sells 2 in-app purchases, starting at $2.99 per month. Flm∴S アイソメmaster asks for nothing beyond the download.

Flm∴S アイソメmaster ships an update every 2 days, JWW見れる君 every 4 days. The most recent releases landed on October 8, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Flm∴S アイソメmaster | JWW見れる君 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 4 days |
| Monetization | Free | — |
| Size | 39 MB | 4 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [shinji miyagawa](https://appshunter.io/developer/6791523364) | [Akira Yamatani](https://appshunter.io/developer/6792604209) |

## What reviewers say

### Flm∴S アイソメmaster

[App page](https://appshunter.io/ios/app/flms-master/id6791523361)

This app simplifies the creation of piping isometric drawings (spool drawings) for construction and fabrication sites. It replaces manual drafting and CAD software with a tablet-based tool, allowing users to easily place symbols and automatically calculate dimensions for efficient workflow.

**Highlights:** Piping and fitting symbols, Automatic cut length calculation, Part numbering and material lists, Vector PDF output for site use, Underlay image support, Project saving and sharing

**In-app purchases:** none


### JWW見れる君

[App page](https://appshunter.io/ios/app/jww/id6792604207)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| JWW見れる君 Pro（月額） | $2.99 | per month |
| Pro（買い切り） | $29.99 | one-time |


## Frequently asked questions

### Is Flm∴S アイソメmaster free?

Flm∴S アイソメmaster is free to download, with no in-app purchases.

### Is JWW見れる君 free?

JWW見れる君 is free to download, with in-app purchases available.

### Do Flm∴S アイソメmaster or JWW見れる君 have ads?

Neither Flm∴S アイソメmaster nor JWW見れる君 shows ads.

### Which is updated more often, Flm∴S アイソメmaster or JWW見れる君?

Flm∴S アイソメmaster ships an update every 2 days, and JWW見れる君 every 4 days. Most recently, Flm∴S アイソメmaster was updated on October 8, 2026 and JWW見れる君 on October 16, 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.*