Tempo Lab vs QR Scanner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tempo Lab
This professional metronome and drum machine offers real drum sounds and visual aids for complex rhythms. It allows musicians to create and save custom beats, practice with various patterns, and master their internal clock without recurring fees.
- Real drum sounds (kick, snare, hi-hat)
- Visual rhythm editing for complex timing
- Random rhythm generator
- Tap tempo functionality
- Unlimited custom rhythm library
- One-time payment, no subscriptions
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Tempo Lab: The Rhythm Station Stop renting your tools. Own your rhythm. Tempo Lab is the professional metronome & drum machine that replaces boring "clicks" with real grooves. Visualise complex rhythms, practice with drum sounds, and pay only once. Why Musicians Love Tempo Lab: NO SUBSCRIPTIONS. EVER. Say goodbye to monthly fees. One-time payment unlocks all Pro features forever. METRONOME MEETS DRUM MACHINE Don't just keep time; feel the groove. Real Drum Sounds: Practice with Kick, Snare, and Hi-hat samples. Jam Session Feel: Turn boring scale practice into a musical experience. VISUALIZE YOUR BEAT The ultimate tool for understanding complex timing. Deep Editing: Customize accents, ghost notes, and subdivisions per beat. Complex Rhythms: Master syncopation, dotted notes, and odd meters (5/4, 7/8) visually. TRAIN YOUR INTERNAL CLOCK Random Rhythm Generator: Challenge yourself with unpredictable patterns to test your sight-reading and reaction. Tap Tempo: Instantly find the BPM of any song. BUILD YOUR LIBRARY Create, name, and save unlimited custom rhythm bars. Perfect for building setlists or saving difficult practice phrases. Perfect For: • Drummers mastering independence • Pianists practicing polyrhythms • Guitarists working on strumming patterns • Any musician tired of subscription-based apps Download Tempo Lab today and master your timing!
QR Scanner
This utility app quickly scans and generates QR codes with various customization options. It offers smart actions for scanned content, a comprehensive history, and multiple scanning modes for different needs. Privacy is a top priority, with all data kept on the device.
- Instant QR code scanning
- QR code generation with customization
- Smart actions for scanned content
- Full scan history with notes and favorites
- Three scanning modes (Auto, Manual, Batch)
- Privacy-focused, no data collection
- Supports multiple barcode formats
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The fastest, most complete QR code scanner on the App Store — and it's completely free with no ads, no subscriptions, and no limits. INSTANT SCANNING Powered by AVFoundation, QR Scanner locks onto codes in milliseconds. Continuous auto-focus, hardware-accelerated zoom, and a real-time viewfinder make scanning effortless — even in low light with the built-in torch. QR CODE GENERATOR Create your own QR codes in seconds. Generate codes for: Websites and URLs Wi-Fi networks (shareable with one tap) Email with subject and body pre-filled Phone numbers Contact cards (vCard) Any text Customise the colour, background, and error correction level. Save to your photo library or share instantly. Every code you generate is saved to a history so you can reshare anytime. SMART ACTIONS QR Scanner understands what it scans. Tap a result to: Open URLs directly in Safari Call or message phone numbers Compose emails Join Wi-Fi networks automatically Save contacts to your address book FULL SCAN HISTORY Every scan is saved and searchable. Add personal notes, mark favourites, sort by date or type, and filter to find exactly what you need. URLs even show the page title instead of the raw link. THREE SCAN MODES Choose how you want to scan: Auto — codes are captured instantly the moment they're detected (default) Manual — the camera detects the code, then waits for you to tap a Scan button before saving. Perfect for reviewing codes before committing Batch — rapid continuous scanning with no interruptions and a live counter. Built for events, inventory, and anywhere you need to scan many codes fast PRIVACY FIRST Everything stays on your device. No account required, no data collected, no analytics, no tracking. Your scan history is yours alone. DETAILS: Pinch-to-zoom and smooth hardware-accelerated zoom slider Per-type haptic feedback — different feel for URLs, Wi-Fi, contacts and more Optional scan sound Auto-copy scanned content to clipboard Avoid duplicate entries — each code saved only once Full Dynamic Type support for accessibility Spotlight search — find scans from the iOS home screen Configurable scan cooldown Supports QR Code, EAN-8, EAN-13, PDF417, Aztec, Code 128, Code 39, Code 93, DataMatrix, UPC-E, and ITF-14.
Screenshots
Verdict
The clearest difference is rating: QR Scanner at 5.0 against Tempo Lab's 4.0. QR Scanner also leads on in-app purchases (none vs 1). On price, ratings volume, update cadence 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. Tempo Lab sells 1 one-off in-app purchase. QR Scanner asks for nothing beyond the download.
QR Scanner holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 4 and 4 respectively.
Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on August 30, 2026 and September 8, 2026 respectively.
| Parameter | Tempo Lab | QR Scanner |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (4 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 | 4 |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 | 16.1 — better |
| Further details — not scored | ||
| Size | 12 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | 巍 李 | Erik Auranaune |
Customer experience
Tempo Lab
QR Scanner
In-app purchases
Tempo Lab
- Lifetime Access$1.99
QR Scanner
No in-app purchases









