Simple Units Converter lite vs UnitStack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simple Units Converter lite
Easily convert between various units of measurement with this user-friendly calculator. It offers a wide range of dimensions and units for everyday use and specific applications.
- Extensive unit library
- 22 different dimensions
- User-friendly interface
- General-purpose calculator
- Lite version
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Simple Units Converter is a general-use units conversion calculator good for anyone interested in converting from one set of units to another. It was developed with ease of use as a primary objective. Has 458 different units and 22 different dimensions: Acceleration (27) Angle (21) Area (31) Cooking (27) Data Storage (16) Density (16) Energy (40) Flow (Volume) (22) Force (16) Frequency (7) Illuminance (5) Length / Distance (30) Luminance (8) Luminous Intensity (4) Magnetic Flux (6) Pressure (28) Speed / Velocity (14) Temperature (7) Time (20) Volume (71) Volume - Dry (6) Weight / Mass (36)
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 Simple Units Converter lite's every 8 months. Simple Units Converter lite's advantage is iOS requirement (16.2 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 Simple Units Converter lite against 5.0 for UnitStack. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Simple Units Converter lite ships an update every 8 months, UnitStack every 2 days. The most recent releases landed on September 6, 2026 and September 17, 2026 respectively.
| Parameter | Simple Units Converter lite | UnitStack |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 8 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.2 — better | 18.6 |
| Further details — not scored | ||
| Size | 9 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Mind Trends LLC | Michael Yang |
Customer experience
Simple Units Converter lite
UnitStack
In-app purchases
Simple Units Converter lite
No in-app purchases
UnitStack
No in-app purchases
Questions
Is Simple Units Converter lite free?
Is UnitStack free?
Which has better reviews, Simple Units Converter lite or UnitStack?
Do Simple Units Converter lite or UnitStack have ads?
Which is updated more often, Simple Units Converter lite or UnitStack?
Other comparisons
