# Aeshna — Private STEP & IGES Viewing

> Private STEP & IGES Viewing (iPhone/iPad app by Shenzhen Seize Times E-Commerce Co., Ltd..)

- Source: https://appshunter.io/ios/app/aeshna/id6758001353 (this page in markdown: same URL + `.md`)
- Developer: [Shenzhen Seize Times E-Commerce Co., Ltd.](https://appshunter.io/developer/368397197)
- Category: Utilities, Business
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.6 · 57 MB
- Languages: American English, French (France), German (Germany), Japanese, Korean, Chinese (Simplified, China), European Spanish
- Released: 2026-02-08
- Data updated: 2026-09-06
- User reviews in markdown: https://appshunter.io/ios/app/aeshna/id6758001353/reviews.md

## What is Aeshna?

Aeshna is a professional CAD viewer and inspection tool for STEP and IGES files. Open, inspect, measure, and review 3D models directly on your device — no account required and no cloud upload.

KEY FEATURES

• STEP & IGES Support
Open STEP, STP, IGES, and IGS files directly on your iPhone or iPad.

• Assembly Tree
Navigate assembly structures, inspect components, and control model visibility.

• Section View
Cut through models to inspect internal geometry and hidden details.

• Exploded View
Separate assembly components to better understand structure and relationships.

• Precision B-Rep Measurement
Measure distances, angles, areas, and volumes directly from B-Rep geometry.

• PMI Support
View dimensions, tolerances, datums, and other PMI information stored in STEP files.

• Screenshot Markup
Add drawings, shapes, and notes to model screenshots for review and sharing.

• Multi-Format Export
Export models to STEP, IGES, STL, OBJ, glTF, VRML, and other common formats.

• Large Model Processing
Use a paired Mac to process CAD models too large for your iPhone or iPad, then seamlessly continue viewing them on your device.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Viewra Models (Monthly) | $4.99 | per month |
| Viewra Models (Yearly) | $34.99 | per year |
| Viewra Complete (Yearly) | $49.99 | per year |
| Viewra Complete (Monthly) | $6.99 | per month |
| Viewra BIMs (Monthly) | $4.99 | per month |
| Viewra BIMs (Monthly) | $34.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Viewra Drawings (Lifetime) | $39.99 | one-time |
| Viewra Models (Lifetime) | $69.99 | one-time |
| Viewra Complete (Lifetime) | $99.99 | one-time |
| Viewra BIMs (Lifetime) | $69.99 | one-time |



## Version history (last 5 releases)

### 3.2.0 — 2026-08-27

* Improved Part Selection
Faster and more intuitive part selection and navigation.

* Snapshot Markup
Annotate model snapshots to highlight details and add notes.

* PMI Support

View dimensions, tolerances, datums, and other PMI data.

* Improved Measurement

A smoother and more efficient measurement experience.

* Saved Views
Access predefined views stored in STEP files.
File Information
View key STEP file and model information at a glance.

### 3.1.0 — 2026-06-12

1. Viewra CAD has been split into three separate products: Viewra STEP, Viewra IFC, and Viewra DWG.
2. In the model preview canvas, selecting a part now shows multiple quick action menus.
3. Improved STEP parsing performance.

### 3.0.0 — 2026-04-16

1.	Added support for opening IFC files.
2.	Improved STEP and IGES performance.

### 2.1.0 — 2026-04-13

Dramatically improved DWG/DXF file parsing performance.

### 2.0.0 — 2026-04-13

Added support for 3D files, including STEP, STP, IGES, and IGS.

## Apps similar to Aeshna

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Flux HVAC: Tech Calculator](https://appshunter.io/ios/app/flux-hvac-tech-calculator/id6756405485) | 5.0 (1) | Free | Utilities |
| [Drive Insight: Master the Ride](https://appshunter.io/ios/app/drive-insight-master-the-ride/id6740708847) | 5.0 (2) | Free | Utilities |
| [AccuBrew](https://appshunter.io/ios/app/accubrew/id1598937763) | 5.0 (3) | Free | Utilities |
| [Part Mind](https://appshunter.io/ios/app/part-mind/id6759449669) | — | Free | Utilities |
| [STP Viewer : STEP 3D](https://appshunter.io/ios/app/stp-viewer-step-3d/id6770497525) | — | Free | Utilities |
| [HydroCalc Basic](https://appshunter.io/ios/app/hydrocalc-basic/id6752577110) | — | Free | Utilities |

## More apps by Shenzhen Seize Times E-Commerce Co., Ltd.

- [Viewra 3D](https://appshunter.io/ios/app/viewra-3d/id6758283083)
- [Kiwa](https://appshunter.io/ios/app/kiwa/id6759024152)
- [Viewra DWG](https://appshunter.io/ios/app/viewra-dwg/id6766208466)
- [Viewra IFC](https://appshunter.io/ios/app/viewra-ifc/id6766208575)
- [PipeAtlas](https://appshunter.io/ios/app/pipeatlas/id6796687644)

All apps by Shenzhen Seize Times E-Commerce Co., Ltd.: https://appshunter.io/developer/368397197

## Related topics

[davita one view](https://appshunter.io/ios/topics/davita-one-view) · [free cad viewer](https://appshunter.io/ios/topics/free-cad-viewer)

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-06.*