Univert vs UnitStack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Univert
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Tired of googling every time you need to convert units? With Univert - Universal Unit Converter, you get a simple, fast and convenient solution right in your hand! Features: - Convert between many different units (15+): length, weight, currencies, temperature and many more. - Convert currencies (30+): live data. - User-friendly design: clear interface that makes it easy to select a unit and enter values. - Instant results: enter a value and see the result updated dynamically. Whether you are traveling, studying, working or cooking - Univert makes your life easier. Download now and discover how convenient it can be to convert units in one place.
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 in-app purchases: UnitStack at none against Univert's 1. UnitStack also leads on update cadence (every 2 days vs every 9 days). Univert's advantage is iOS requirement (16.0 vs 18.6). On price, ads and device support 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. Univert sells 1 one-off in-app purchase. UnitStack asks for nothing beyond the download.
Univert ships an update every 9 days, UnitStack every 2 days. Both last shipped on October 28, 2026.
| Parameter | Univert | UnitStack |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 9 days | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 2 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | ADRIAN NESHAD | Michael Yang |
In-app purchases
Univert
- Advanced Units$0.99
UnitStack
No in-app purchases









