# Angle Meter PRO vs True

The clearest difference is price: True at Free against Angle Meter PRO's $3.99. True also leads on rating (5.0 vs 4.1) and update cadence (every 6 weeks vs every 5 months). Angle Meter PRO's advantage is in-app purchases (none vs 4) and ads (none vs shown). On ratings volume and device support there is nothing between them.

True is free to download; Angle Meter PRO costs $3.99 up front. True sells 4 in-app purchases, starting at $1.99 per 7 days. Angle Meter PRO asks for nothing beyond the download.

True holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 10 and 8 respectively.

Angle Meter PRO ships an update every 5 months, True every 6 weeks. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Angle Meter PRO | True |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [4.1 (10 ratings)](https://appshunter.io/ios/app/angle-meter-pro/id386312253/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/true-caller-id-and-call-manager/id6760224130/reviews)** |
| Number of ratings | **10** | 8 |
| Positive reviews | 60.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 6 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 3 MB | 83 MB |
| Requires iOS | 18.6 | **16.1** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [nakhon phagdeechat](https://appshunter.io/developer/386312256) | [Jay Lakhani](https://appshunter.io/developer/1820580603) |

## What reviewers say

### Angle Meter PRO

[App page](https://appshunter.io/ios/app/angle-meter-pro/id386312253)

Measure angles and slopes with precision using your device's camera. Offers real-time angle display, multiple measurement modes, and the ability to capture and save measurements for later reference.

**Highlights:** Real-time angle display, Two measurement modes, Camera-based angle measurement, Capture and save measurements, Level meter for vertical tilt, Calibration option for accuracy

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

**In-app purchases:** none


### True

[App page](https://appshunter.io/ios/app/true-caller-id-and-call-manager/id6760224130)

Identify unknown callers, block unwanted spam calls, and manage your contacts efficiently. This app offers smart tools for a safer and more organized calling experience, putting you in full control of your phone communication.

**Highlights:** Identify unknown callers, Spam call protection, Smart dialer, Contact management, Favorite contacts, Private contacts, Scheduled call reminders

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro Access | $1.99 | per 7 days |
| Monthly Pro Access | $3.99 | per month |
| Yearly Pro Access | $9.99 | per year |
| Lifetime Pro Access | $19.99 | one-time |


## Frequently asked questions

### Is Angle Meter PRO free?

Angle Meter PRO costs $3.99, with no in-app purchases.

### Is True free?

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

### Which has better reviews, Angle Meter PRO or True?

True is rated higher. Angle Meter PRO averages 4.1 out of 5 from 10 ratings, while True averages 5.0 from 8 ratings.

### Do Angle Meter PRO or True have ads?

True shows ads; Angle Meter PRO does not.

### Which is updated more often, Angle Meter PRO or True?

Angle Meter PRO ships an update every 5 months, and True every 6 weeks. Most recently, Angle Meter PRO was updated on November 1, 2026 and True on October 31, 2026.

---

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