Unit co vs UnitStack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Unit co
Easily convert between various units of measurement with this straightforward utility. It offers a simple interface for quick and accurate conversions across different categories.
- Unit conversion
- Multiple measurement categories
- Simple interface
- Accurate results
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Unit Convert is my job
UnitStack
This utility app allows for simultaneous unit and currency conversions, saving your progress and custom units. Its minimalist design ensures a clear and efficient user experience for all your measurement needs.
- Stack multiple conversions
- Persistent values
- Custom units of measure
- Minimalist interface
- Custom color themes
- Currency conversion
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UnitStack lets you stack multiple unit conversions at once—so you never have to switch units or reselect conversions again. Your conversions are always saved. Open the app and start typing. Add custom units too—like that old reliable sauce spoon. Built for speed and clarity • Stack multiple conversions at once • Persistent values — pick up where you left off • Minimal, distraction-free interface • Custom color themes, including your own • Support for custom units of measure Whether you’re comparing measurements, converting currencies, or working across systems, UnitStack keeps everything visible and friction-free. Currency exchange rates are provided by Frankfurter (ECB reference rates).
Screenshots
Verdict
The clearest difference is update cadence: UnitStack at every 2 days against Unit co's weekly. Unit co's advantage is iOS requirement (12.0 vs 18.6). On price, rating, ratings volume and ads 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Unit co against 5.0 for UnitStack. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Unit co ships an update weekly, UnitStack every 2 days. The most recent releases landed on October 3, 2026 and October 4, 2026 respectively.
| Parameter | Unit co | UnitStack |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Weekly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 24 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Michael Mobayen | Michael Yang |
Customer experience
Unit co
UnitStack
In-app purchases
Unit co
No in-app purchases
UnitStack
No in-app purchases







