# Protractor+ vs Scale For Grams

The clearest difference is ads: Protractor+ at none against Scale For Grams's shown. Protractor+ also leads on ratings volume (10K vs 3.5K). Scale For Grams's advantage is update cadence (every 8 days vs every 2 months) and rating (4.5 vs 4.1). On price, review sentiment, in-app purchases and monetization model there is nothing between them.

Both are free to download. Protractor+ sells 1 one-off in-app purchase and Scale For Grams sells 8 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Scale For Grams holds the better App Store score, 4.5 against 4.1. Both are backed by a comparable volume of ratings — 10K and 3.5K respectively. Written reviews point the same way: 15% of Protractor+'s written reviews are positive against 20% of Scale For Grams's.

Protractor+ ships an update every 2 months, Scale For Grams every 8 days. The most recent releases landed on October 13, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Protractor+ | Scale For Grams |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (10K ratings)](https://appshunter.io/ios/app/protractor-plus/id631311541/reviews) | **[4.5 (3.5K ratings)](https://appshunter.io/ios/app/scale-for-grams-digital-scale/id6746168792/reviews)** |
| Number of ratings | **10K** | 3.5K |
| Positive reviews | 14.9% of reviews | **19.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 8 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 21 MB | 76 MB |
| Requires iOS | 17.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tue Nguyen Minh](https://appshunter.io/developer/434811167) | [AVLABS DIJITAL HIZMETLER ANONIM SIRKETI](https://appshunter.io/developer/1812110294) |

## What reviewers say

### Protractor+

[App page](https://appshunter.io/ios/app/protractor-plus/id631311541)

Transform your device into a versatile angle measurement tool. Easily measure angles in both degrees and radians with an intuitive interface. Ideal for quick and precise angle readings.

**Highlights:** Angle measurement, Degrees and radians, Intuitive visual control, Elegant design, Pocket protractor functionality

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Features | $1.99 | one-time |

**What reviewers like**

- 🚀 Quick angle measurement
- 👍 Useful for physics labs
- 👍 Easy to use

**What reviewers complain about**

- 🔒 Degrees feature locked behind paywall
- 🐛 Unreliable camera feature
- 🔋 Frequent timeouts force upgrade
- 💰 Aggressive monetization tactics

**Reported bugs**

- Camera feature not working as expected
- Angle measurements not accurate
- Frequent app crashes

**Requested features**

- Ability to measure in degrees without upgrade
- Improved accuracy and responsiveness
- Removal of timeouts and paywalls


### Scale For Grams

[App page](https://appshunter.io/ios/app/scale-for-grams-digital-scale/id6746168792)

Estimate the weight of objects using only your phone's camera. This AI-powered app transforms your device into a smart scale, providing instant weight and size estimates for various items from food to furniture. It also offers additional tools like text translation and calorie detection.

**Highlights:** AI weight estimation from photos, Measure length from photos, Instant text translation via camera, Calorie and nutrition detection, Supports a wide range of object categories, No physical scale required

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ScaleAI Premium Weekly | $3.99 | per 7 days |
| ScaleAI Premium Weekly NoTrial | $3.99 | per 7 days |
| ScaleAi Offer Subscription | $7.99 | per 7 days |
| ScaleAI Premium Monthly | $10.99 | per month |
| ScaleAI Premium MonthlyNoTrial | $10.99 | per month |
| Unlimited Access all features | $29.99 | per year |
| ScaleAI Premium Annually | $29.99 | per year |
| Unlimited access to all features | $34.99 | per year |

**What reviewers like**

- 💡 Accurate food measurements
- 👍 Works as a small scale

**What reviewers complain about**

- 🚫 Doesn't work as advertised
- 💰 Expensive for the functionality
- 🤷‍♀️ Lack of instructions
- 🔁 Constant prompts to buy premium

**Reported bugs**

- Inconsistent measurements across different angles
- Inability to cancel free trial before being charged

**Requested features**

- Improve accuracy of food measurements
- Provide clear instructions for usage
- Offer a free version with limited features


## Frequently asked questions

### Is Protractor+ free?

Protractor+ is free to download, with in-app purchases available.

### Is Scale For Grams free?

Scale For Grams is free to download, with in-app purchases available.

### Which has better reviews, Protractor+ or Scale For Grams?

Scale For Grams is rated higher. Protractor+ averages 4.1 out of 5 from 10K ratings, while Scale For Grams averages 4.5 from 3.5K ratings.

### Do Protractor+ or Scale For Grams have ads?

Scale For Grams shows ads; Protractor+ does not.

### Which is updated more often, Protractor+ or Scale For Grams?

Protractor+ ships an update every 2 months, and Scale For Grams every 8 days. Most recently, Protractor+ was updated on October 13, 2026 and Scale For Grams on October 14, 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.*