# Angle Meter PRO vs NanoSubs

The clearest difference is price: NanoSubs at Free against Angle Meter PRO's $3.99. NanoSubs also leads on update cadence (every 9 days vs every 5 months). Angle Meter PRO's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

NanoSubs is free to download; Angle Meter PRO costs $3.99 up front. NanoSubs sells 1 one-off in-app purchase. Angle Meter PRO asks for nothing beyond the download.

Angle Meter PRO ships an update every 5 months, NanoSubs every 9 days. The most recent releases landed on September 18, 2026 and August 22, 2026 respectively.

## The numbers

| Metric | Angle Meter PRO | NanoSubs |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.4 (7 ratings)](https://appshunter.io/ios/app/angle-meter-pro/id386312253/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 60.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 9 days** |
| Monetization | Paid | — |
| Size | 3 MB | 7 MB |
| Requires iOS | 18.6 | **17.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [nakhon phagdeechat](https://appshunter.io/developer/386312256) | [恒俭 董](https://appshunter.io/developer/947356968) |

## 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


### NanoSubs

[App page](https://appshunter.io/ios/app/nanosubs/id6759703321)

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is Angle Meter PRO free?

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

### Is NanoSubs free?

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

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

Neither Angle Meter PRO nor NanoSubs shows ads.

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

Angle Meter PRO ships an update every 5 months, and NanoSubs every 9 days. Most recently, Angle Meter PRO was updated on September 18, 2026 and NanoSubs on August 22, 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.*