# Ruler vs PlantMe

The clearest difference is review sentiment: PlantMe at 71% against Ruler's 15%. PlantMe also leads on rating (4.8 vs 4.2) and update cadence (every 6 months vs every 14 months). Ruler's advantage is monetization model (ad-supported vs free with in-app purchases) and iOS requirement (13.0 vs 15.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PlantMe holds the better App Store score, 4.8 against 4.2. Both are backed by a comparable volume of ratings — 419 and 558 respectively. Written reviews point the same way: 15% of Ruler's written reviews are positive against 71% of PlantMe's.

Ruler ships an update every 14 months, PlantMe every 6 months. Both last shipped on October 25, 2026.

## The numbers

| Metric | Ruler | PlantMe |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (419 ratings)](https://appshunter.io/ios/app/ruler/id1555214809/reviews) | **[4.8 (558 ratings)](https://appshunter.io/ios/app/plantme/id6462468498/reviews)** |
| Number of ratings | 419 | **558** |
| Positive reviews | 15.2% of reviews | **70.8% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 14 months | **Every 6 months** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 6 MB | 6 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Matrix Software Co.](https://appshunter.io/developer/1457004046) | [UniCom Technology](https://appshunter.io/developer/1270764210) |

## What reviewers say

### Ruler

[App page](https://appshunter.io/ios/app/ruler/id1555214809)

Measure objects and distances with an on-screen ruler and augmented reality. Supports inches and centimeters, with features for linear sizes, angles, area, volume, and more. Save your measurements for later use.

**Highlights:** On-screen ruler for small objects, Augmented Reality (AR) measuring, Measure linear sizes in cm/inches, Calculate angles, area, and volume, Save measurements, Generate plan projections

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Basic caliper and spirit level included
- ✅ Option to opt-out of data selling/sharing
- 👌 Accurate measurements (Arabic review)

**What reviewers complain about**

- 📏 Inaccurate measurements
- 💥 Frequent app crashes
- 💸 Limited free functionality (5" limit)
- 🚫 Cannot switch to metric (cm)
- 🤷 Unclear AR mode usage

**Reported bugs**

- App crashes on iPhone 17 and iPad
- App crashes within 1 minute
- AR mode not functional
- Cannot switch to cm
- Measurements are out of scale

**Requested features**

- Fix crashing issues
- Enable switching to metric (cm)
- Improve AR mode usability
- Add save and print functionality
- Provide usage instructions


### PlantMe

[App page](https://appshunter.io/ios/app/plantme/id6462468498)

Identify plants instantly with a photo. Get detailed profiles, care tips, and location-based recommendations to help your plants thrive. Connect with nature and share your discoveries.

**Highlights:** Photo plant identification, Global plant localization, Detailed plant profiles, Personalized plant care recommendations, Save and share plant discoveries, Sunlight and location advice

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🎯 Accurate plant recognition capability
- 💰 Free app with no subscription fees
- ⚡ Fast and efficient performance
- 💾 Saves identified plants for future reference
- 👍 User-friendly and simple to use

**What reviewers complain about**

- 🐛 Frequent app crashes
- 🐛 Crashes when viewing plant details
- ❌ Limited functionality beyond plant recognition
- ❌ Inaccurate plant identification results
- 🚫 Account blocking issues without clear explanation

**Reported bugs**

- App crashes on startup
- App crashes when clicking on plant results
- App closes when viewing plant details
- App automatically returns to menu when opened
- Crashes within seconds of selecting a plant

**Requested features**

- Expanded app functionality beyond plant recognition
- More detailed plant information and care guides
- Better account management and support


## Frequently asked questions

### Is Ruler free?

Ruler is free to download, with no in-app purchases.

### Is PlantMe free?

PlantMe is free to download, with no in-app purchases.

### Which has better reviews, Ruler or PlantMe?

PlantMe is rated higher. Ruler averages 4.2 out of 5 from 419 ratings, while PlantMe averages 4.8 from 558 ratings.

### Do Ruler or PlantMe have ads?

Both Ruler and PlantMe show ads.

### Which is updated more often, Ruler or PlantMe?

Ruler ships an update every 14 months, and PlantMe every 6 months. Most recently, Ruler was updated on October 25, 2026 and PlantMe on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*