Abo Calculator vs STL Preview
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Abo Calculator
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A App to calculate the Monthly Prices for your Abonnements, that you share with your Friends and Family.
STL Preview
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STL Preview helps you open and inspect STL files directly on your iPhone or iPad, without needing to return to your computer just to check a 3D model. Whether you are preparing a 3D print, reviewing a design, sharing a model with someone, or quickly checking a part on the go, STL Preview gives you a simple way to see your model clearly in 3D. Open an STL file from Files, downloads, or the share sheet, then rotate, zoom, and examine it with smooth touch controls. Instead of guessing what a file contains from its name or waiting until you are back at your desktop CAD software, you can preview the model immediately. With AR mode, you can place your STL model into the real world using your device camera. This makes it easier to understand size, shape, and proportion before printing, presenting, or continuing your design work. You can also customize the model color and background color to make details easier to see. STL Preview is made for engineers, designers, makers, students, 3D printing users, and anyone who works with STL files and wants a faster, simpler way to inspect them on mobile. Open the file. View the model. Check it before you print, share, or continue.
Screenshots
Verdict
The clearest difference is in-app purchases: Abo Calculator at none against STL Preview's 1. Abo Calculator also leads on ads (none vs shown). STL Preview's advantage is update cadence (every 3 days vs every 26 months). On price, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. STL Preview sells 1 one-off in-app purchase. Abo Calculator asks for nothing beyond the download.
Abo Calculator ships an update every 26 months, STL Preview every 3 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | Abo Calculator | STL Preview |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 26 months | Every 3 days โ better |
| Ads | No โ better | Yes |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.2 | 16.0 โ better |
| Further details โ not scored | ||
| Size | 3 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Daniel Palma | Enes Akkus |
In-app purchases
Abo Calculator
No in-app purchases
STL Preview
- Remove Ads$0.49
Questions
Is Abo Calculator free?
Is STL Preview free?
Do Abo Calculator or STL Preview have ads?
Which is updated more often, Abo Calculator or STL Preview?
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