# STL Viewer vs Countpad

The clearest difference is review sentiment: STL Viewer at 100% against Countpad's 0%. STL Viewer also leads on chart position (#137 vs unranked). Countpad's advantage is price (Free vs $0.99) and update cadence (every 5 days vs every 6 weeks). On ads, in-app purchases, monetization model and device support there is nothing between them.

Countpad is free to download; STL Viewer costs $0.99 up front. STL Viewer sells 5 in-app purchases, starting at $2.99 per month and Countpad sells 10 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

STL Viewer ships an update every 6 weeks, Countpad every 5 days. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | STL Viewer | Countpad |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#137** | — |
| Size | 5 MB | 26 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Felipe Marques de Barros](https://appshunter.io/developer/1459294806) | [Jatupon Hongweing](https://appshunter.io/developer/1896471199) |

## What reviewers say

### STL Viewer

[App page](https://appshunter.io/ios/app/stl-viewer-3d-print-and-mesh/id6445801487)

**Currently charting:** #137 Top Paid · Productivity (US App Store)

Visualize e inspecione modelos 3D STL em seu dispositivo. Oferece ferramentas avançadas para medição, análise de malha e geração de relatórios PDF. Ideal para engenharia, impressão 3D e revisão técnica.

**Highlights:** Multitouch rotation, pan, and zoom, Wireframe, X-Ray, and normal orientation modes, Precise point-to-point measurement, Interactive cutting plane, Mesh health diagnostics, Generate PDF technical reports

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| STL Viewer Pro Mensal | $2.99 | per month |
| STL Viewer Studio Mensal | $5.99 | per month |
| STL Viewer Pro Anual | $22.99 | per year |
| STL Viewer Studio Anual | $49.99 | per year |
| STL Viewer Pro Vitalício | $39.99 | one-time |


### Countpad

[App page](https://appshunter.io/ios/app/countpad-inventory-tracker/id6799657980)

Easily track your stock with this fast, offline inventory management tool. Add items, adjust quantities, scan barcodes, and generate reports in PDF or CSV format. Ideal for individuals needing accurate counts without complex features.

**Highlights:** Offline stock counting, Barcode scanning, Instant search and filtering, PDF and CSV report generation, Cloud backup and restore, Optional shared inventory

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Countpad Cloud — Starter | $2.99 | per month |
| Countpad Cloud — Shop | $4.99 | per month |
| Countpad Cloud — Business | $9.99 | per month |
| Pro Monthly | $9.99 | per month |
| Shared Inventory | $29.99 | per month |
| Pro Yearly | $59.99 | per year |
| Remove Ads | $4.99 | one-time |
| Remove Ads | $9.99 | one-time |
| Remove Ads | $14.99 | one-time |
| Pro Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is STL Viewer free?

STL Viewer costs $0.99, and also offers in-app purchases.

### Is Countpad free?

Countpad is free to download, with in-app purchases available.

### Do STL Viewer or Countpad have ads?

Neither STL Viewer nor Countpad shows ads.

### Which is updated more often, STL Viewer or Countpad?

STL Viewer ships an update every 6 weeks, and Countpad every 5 days. Most recently, STL Viewer was updated on October 27, 2026 and Countpad on October 25, 2026.

---

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