# Ruler® vs JPDBreader+α (Plus Alpha)

The clearest difference is rating: JPDBreader+α (Plus Alpha) at 5.0 against Ruler®'s 4.3. JPDBreader+α (Plus Alpha) also leads on in-app purchases (none vs 2) and update cadence (fortnightly vs every 6 weeks). Ruler®'s advantage is ratings volume (35K vs 2). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Ruler® sells 2 in-app purchases, starting at $1.99 per 7 days. JPDBreader+α (Plus Alpha) asks for nothing beyond the download.

JPDBreader+α (Plus Alpha) holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Ruler® has 35K ratings behind it against 2, so its average is the more settled of the two.

Ruler® ships an update every 6 weeks, JPDBreader+α (Plus Alpha) fortnightly. The most recent releases landed on September 27, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | Ruler® | JPDBreader+α (Plus Alpha) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (35K ratings)](https://appshunter.io/ios/app/ruler/id623207505/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/jpdbreader-plus-plus-alpha/id6738365000/reviews)** |
| Number of ratings | **35K** | 2 |
| Positive reviews | 21.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 25 MB | 2 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tue Nguyen Minh](https://appshunter.io/developer/434811167) | [Franklin Fanelli](https://appshunter.io/developer/1495259800) |

## What reviewers say

### Ruler®

[App page](https://appshunter.io/ios/app/ruler/id623207505)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ruler Pro (Weekly) | $1.99 | per 7 days |
| Pro Features | $1.99 | one-time |

**What reviewers like**

- 🚀 Accurate measurements
- 👍 Easy to use
- 🔍 Convenient for small items
- 📏 Useful ruler tool

**What reviewers complain about**

- 💰 Paywall for basic features
- ⏱️ Limited free usage time
- 🔍 Inaccurate for larger objects
- 🙅‍♀️ Aggressive monetization tactics

**Reported bugs**

- Inconsistent measurements
- Compatibility issues with newer devices

**Requested features**

- Ability to switch between metric and imperial units without paying
- Improved accuracy for larger measurements
- Removal of time limits on free usage


### JPDBreader+α (Plus Alpha)

[App page](https://appshunter.io/ios/app/jpdbreader-plus-plus-alpha/id6738365000)

This Safari extension allows users to parse Japanese text on websites, access a dictionary, and identify unknown words. It also enables adding and reviewing flashcards, with unique 2D review modes for vocabulary learning at your own pace. Requires a JPDB.io account.

**Highlights:** Parse Japanese text on websites, Access Japanese dictionary, Identify unknown words, Add and review flashcards, 2D SRS vocabulary review, Learn words at your own pace

**Features:** macOS Compatibility, Safari Extension

**In-app purchases:** none


## Frequently asked questions

### Is Ruler® free?

Ruler® is free to download, with in-app purchases available.

### Is JPDBreader+α (Plus Alpha) free?

JPDBreader+α (Plus Alpha) is free to download, with no in-app purchases.

### Which has better reviews, Ruler® or JPDBreader+α (Plus Alpha)?

JPDBreader+α (Plus Alpha) is rated higher. Ruler® averages 4.3 out of 5 from 35K ratings, while JPDBreader+α (Plus Alpha) averages 5.0 from 2 ratings.

### Do Ruler® or JPDBreader+α (Plus Alpha) have ads?

Neither Ruler® nor JPDBreader+α (Plus Alpha) shows ads.

### Which is updated more often, Ruler® or JPDBreader+α (Plus Alpha)?

Ruler® ships an update every 6 weeks, and JPDBreader+α (Plus Alpha) fortnightly. Most recently, Ruler® was updated on September 27, 2026 and JPDBreader+α (Plus Alpha) on June 11, 2026.

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