Qapp vs ConvertUS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Qapp
Easily book car wash services tailored to your needs and schedule. This app provides a convenient way to manage your vehicle cleaning right from your phone.
- Effortless car care
- Convenient vehicle cleaning
- Book car wash services
- Tailored to your needs
- Schedule management
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Welcome to Qapp, your go-to solution for effortless car care and maintenance! We make vehicle cleaning easy and convenient, right at your fingertips. Book your car wash services tailored to your needs and your schedule with Qapp.
ConvertUS
This utility app offers instant unit conversions with a unique retro terminal interface. It supports a wide range of measurement types and includes customizable themes. The app works offline and integrates with device shortcuts for quick access.
- Instant unit conversions
- Wide range of measurement types
- Retro terminal aesthetic
- Multiple customizable themes
- Offline functionality
- Spotlight and Siri shortcuts
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ConvertUS is a fast, all-in-one unit converter with a retro terminal aesthetic. Convert anything, instantly: • Length, mass, area, volume • Temperature, pressure, energy, power • Speed, time, frequency, angle • Data sizes, fuel economy, cooking measures • Force, torque, number bases Features: • Tap any unit to set the source. Every other unit updates instantly • Multi-language support • Multiple themes including Matrix, Dracula, Sherlock, Zeus, Odin, Horus and more • Copy any result with a single tap • Works fully offline. No tracking, no accounts, no ads • Spotlight & Siri shortcuts. Just say "Open ConvertUS" Designed to be the fastest converter on your phone.
Screenshots
Verdict
The clearest difference is update cadence: ConvertUS at daily against Qapp's monthly. ConvertUS also leads on rating (5.0 vs 4.7). Qapp's advantage is iOS requirement (12.0 vs 26.2). On price, review sentiment, 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.
ConvertUS holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 15 and 6 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Qapp ships an update monthly, ConvertUS daily. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Qapp | ConvertUS |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (15 ratings) | 5.0 (6 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 15 — better | 6 |
| Update frequency | Monthly | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 39 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | QAPP22 LLC | Gondolin LLC |
Customer experience
Qapp
ConvertUS
In-app purchases
Qapp
No in-app purchases
ConvertUS
No in-app purchases
