# Bubble Level + Measure Kit vs SmartTracker

The clearest difference is review sentiment: SmartTracker at 100% against Bubble Level + Measure Kit's 13%. SmartTracker also leads on update cadence (every 6 days vs every 3 months) and monetization model (free with in-app purchases vs paid). Bubble Level + Measure Kit's advantage is iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Bubble Level + Measure Kit sells 1 one-off in-app purchase and SmartTracker sells 2 in-app purchases, starting at $6.99 per year. Whichever you choose, the download price is not the number that matters.

Bubble Level + Measure Kit ships an update every 3 months, SmartTracker every 6 days. The most recent releases landed on November 12, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Bubble Level + Measure Kit | SmartTracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/smarttracker-price-tracker/id6754879283/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | 12.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 3 MB | 49 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 17+ |
| Developer | [Sensonet](https://appshunter.io/developer/793745582) | [Hugo Prione](https://appshunter.io/developer/1206460508) |

## What reviewers say

### Bubble Level + Measure Kit

[App page](https://appshunter.io/ios/app/bubble-level-plus-measure-kit/id806787408)

This utility app turns your device into a high-precision spirit level. Measure angles on any surface with a beautifully designed interface. Available at a special limited-time price.

**Highlights:** High precision spirit level, Angle measurement, Beautifully designed UI, Pocket-sized utility, iPhone and iPad compatible

**Features:** macOS Compatibility, Family Sharing, iPhone Duo support

**In-app purchases (1)**

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


### SmartTracker

[App page](https://appshunter.io/ios/app/smarttracker-price-tracker/id6754879283)

Effortlessly monitor prices on any website and receive instant alerts when deals drop. Visualize price history with clear charts and organize wishlists. Integrates with Siri and Shortcuts for seamless price tracking.

**Highlights:** Track prices on any website, Set smart price alerts, View price history charts, Home and Lock Screen widgets, Siri and Shortcuts integration, Organize wishlists and collections, Export data to CSV

**Features:** Family Sharing, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - Annual | $6.99 | per year |
| Premium - One-time purchase | $19.99 | one-time |


## Frequently asked questions

### Is Bubble Level + Measure Kit free?

Bubble Level + Measure Kit is free to download, with in-app purchases available.

### Is SmartTracker free?

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

### Do Bubble Level + Measure Kit or SmartTracker have ads?

Neither Bubble Level + Measure Kit nor SmartTracker shows ads.

### Which is updated more often, Bubble Level + Measure Kit or SmartTracker?

Bubble Level + Measure Kit ships an update every 3 months, and SmartTracker every 6 days. Most recently, Bubble Level + Measure Kit was updated on November 12, 2026 and SmartTracker on November 5, 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.*