Zip File vs Stackis RPN
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zip File
Compress, extract, and organize various file formats like .zip, .rar, and .7z. This tool offers a secure and simple way to manage your files on the go, with premium features available through subscription.
- Compress and extract files
- Support for .zip, .rar, .7z formats
- File organization
- Secure file handling
- Manage subscriptions
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Easily zip, unzip, and manage your files in one place! Zip File Manager is your all-in-one tool to compress, extract, and organize files. Whether you’re dealing with .zip, .rar, .7z, or other formats, this app makes file handling fast, secure, and simple on the go. Subscription Details Paid Features: •Zip Format • File Quality • Title: Savory All Access • Length: 1 year / 1 month (auto-renews) • Price: $24.99 per year or $4.99 per month • Manage: Subscriptions can be managed in iOS settings By subscribing, you agree : • Privacy Policy URL: https://docs.google.com/document/d/1L4UurpLYVZizX0TzPn9wnvpVcKiy6yrY-QDDzqMnt48/view?usp=sharing • EULA (Terms of Use): Use the Apple standard: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Stackis RPN
A calculator designed for users who prefer Reverse Polish Notation (RPN). It offers a familiar interface for RPN users and includes support for duodecimal calculations.
- RPN calculation style
- Duodecimal (dozenal) support
- Familiar interface for RPN users
- Simple and pleasant user experience
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This is an RPN calculator in the style of, for instance, old HP models. It will feel familiar if you are used to RPN, otherwise it will probably be a little confusing at first. It's not programmable and it doesn't try to mimic older hardware; it's just meant to be a pleasant calculator for those who prefer to use RPN. Also, if you want to perform calculations in duodecimal (dozenal), this app is for you!
Screenshots
Verdict
The clearest difference is rating: Stackis RPN at 5.0 against Zip File's 2.3. Stackis RPN also leads on update cadence (every 4 days vs every 6 months) and monetization model (free vs free with in-app purchases). On price, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Zip File sells 3 in-app purchases, starting at $4.99 per 7 days and Stackis RPN sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Stackis RPN holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 3 and 2 respectively.
Zip File ships an update every 6 months, Stackis RPN every 4 days. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.
| Parameter | Zip File | Stackis RPN |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (3 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 3 — better | 2 |
| Update frequency | Every 6 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.6 | 17.6 |
| Further details — not scored | ||
| Size | 10 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Fenuku Kekeli | Skimra |
Customer experience
Zip File
Stackis RPN
In-app purchases
Zip File
- All Access for a week$4.997 Days
- All Access for a month$4.991 Month
- All Access for a year$24.991 Year
Stackis RPN
- Advanced Mode$1.99
