Guitar Tuner vs Ruler®
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Guitar Tuner
Tune your 6-string guitar with precise reference notes. Supports standard tuning and more. Ensure your device is not on silent to hear the tuning tones.
- Accurate reference notes
- Supports standard tuning (E A D G B e)
- Supports more tunings
- Clear tuning tones
- Device not on silent required
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Tune your 6-string guitar with clear, accurate reference notes. Includes standard tuning (E A D G B e) plus popular alternate tunings. Fast, simple, and reliable.
Ruler®
This app provides a versatile toolkit for all your measurement needs. It includes a classic ruler, a tape measure, and a camera ruler for precise measurements. Easily switch between units and document your findings by adding measurements directly to photos.
- Classic ruler and tape measure
- Camera ruler mode
- Photo measures mode
- Dual unit support (inches/cm)
- Precision sliders for small objects
- Elegant and user-friendly interface
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Your Comprehensive Ruler Solution for Your Phone! Experience the ultimate ruler toolkit on your phone, featuring a classic ruler, a tape measure, and a camera ruler. Key Features: - Elegant Design: Enjoy a stylish and user-friendly interface for all your measurement needs. - Dual Units: Easily switch between inches and centimeters for versatile measuring. - Precision Sliders: Accurately measure small objects with intuitive sliders. - Camera Ruler Mode: Utilize your phone's camera to measure objects seamlessly. - Photo Measures Mode: Add measurement data directly to your photos for organized documentation. Make every measurement a breeze with our complete ruler solution! Download now for a sleek and efficient measuring experience. Terms Of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: Guitar Tuner at 73% against Ruler®'s 22%. Guitar Tuner also leads on in-app purchases (none vs 2) and rating (4.6 vs 4.3). Ruler®'s advantage is ads (none vs shown) and update cadence (every 2 months vs every 9 months). On price, device support and iOS requirement 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. Ruler® sells 2 in-app purchases, starting at $1.99 per 7 days. Guitar Tuner asks for nothing beyond the download.
Guitar Tuner holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: Ruler® has 35K ratings behind it against 3.9K, so its average is the more settled of the two. Written reviews point the same way: 73% of Guitar Tuner's written reviews are positive against 22% of Ruler®'s.
Guitar Tuner ships an update every 9 months, Ruler® every 2 months. Both last shipped on October 14, 2026.
| Parameter | Guitar Tuner | Ruler® |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (3.9K ratings) — better | 4.3 (35K ratings) |
| Positive reviews | 73.0% of reviews — better | 21.9% of reviews |
| Number of ratings | 3.9K | 35K — better |
| Update frequency | Every 9 months | Every 2 months — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 9 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Alvin Yu | Tue Nguyen Minh |
Customer experience
Guitar Tuner
Ruler®
Bugs and requests
Guitar Tuner
Not enough reviews yet to summarise bugs or requests.
Ruler®
Reported bugs
2 issues- Inconsistent measurements
- Compatibility issues with newer devices
Requested features
3 requests- Ability to switch between metric and imperial units without paying
- Improved accuracy for larger measurements
- Removal of time limits on free usage
In-app purchases
Guitar Tuner
No in-app purchases
Ruler®
- Ruler Pro (Weekly)3 Days trial$1.997 Days
- Pro Features$1.99
Questions
Is Guitar Tuner free?
Is Ruler® free?
Which has better reviews, Guitar Tuner or Ruler®?
Do Guitar Tuner or Ruler® have ads?
Which is updated more often, Guitar Tuner or Ruler®?
Other comparisons
